All Stories

  1. UV Excitation of Uracil Results in the Formation of a Ground-State Intermediate in Less Than One Picosecond and Its Decay is Quenched by Nucleophilic Water Addition

    Article • Journal of the American Chemical Society, October 2025, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  2. Photochemistry of Aqueous Warfarin and 4-Hydroxycoumarin

    Article • ACS ES&T Water, October 2025, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  3. UV Excitation of Uracil Results in the Formation of a Ground-State Intermediate in Less Than One Picosecond and Its Lifetime is Quenched by Nucleophilic Water Addition

    Article • September 2025, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  4. Alloxazine derivatives as multifunctional agents for photodynamic therapy, cancer cell imaging, and cell proliferation inhibition

    Article • Photochemistry and Photobiology, September 2025, Wiley

    Prof. Carlos E Crespo-Hernández

  5. Impact of diamino and imidazole functionalization on the photophysical properties and electronic and structural dynamics of the pyrimidine nucleobase

    Article • The Journal of Chemical Physics, August 2025, American Institute of Physics

    Prof. Carlos E Crespo-Hernández

  6. Harnessing the Excited States of 5-(5-Phenylthiophen-2-yl)-6-Azauridine as a Three-Pronged Agent for Skin Cancer Therapy: Photodynamic Action, Cell Imaging, and Cancer Cell Inhibition

    Article • ACS Applied Bio Materials, July 2025, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  7. Harnessing the Excited States of 5-(5-Phenylthiophen-2-yl)-6-Azauridine as a Three-Pronged Agent for Skin Cancer Therapy: Photodynamic Action, Cell Imaging, and Cancer Cell Inhibition

    Article • July 2025, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  8. Impact of Diamino and Imidazole Functionalization on the Photophysical Properties and Electronic and Structural Dynamics of the Pyrimidine Nucleobase

    Article • June 2025, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  9. dTAT1: An Unnatural Nucleoside Exhibiting Low Photocytotoxicity for Genetic Code Expansion

    Article • The Journal of Physical Chemistry Letters, May 2025, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  10. dTAT1: An Unnatural Nucleoside Exhibiting Low Photocytotoxicity for Genetic Code Expansion

    Article • March 2025, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  11. Development of 5-(5-Phenylthiophen-2-yl)-6-Azauridine as a Three-Prong Agent for Photodynamic Therapy, Cell Imaging, and Cancer Cell Inhibition

    Article • November 2024, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  12. Structural and Electronic Factors Controlling the Efficiency and Rate of Intersystem Crossing to the Triplet State in Thiophene Polycyclic Derivatives

    Article • Chemistry - A European Journal, October 2024, Wiley

    Prof. Carlos E Crespo-Hernández

  13. Theoretical and Experimental Evaluation of the Electronic Relaxation Mechanisms of 2‐Pyrimidinone: The Primary UVA Absorbing Moiety of the DNA and RNA (6–4) Photolesion

    Article • ChemPhotoChem, August 2024, Wiley

    Prof. Carlos E Crespo-Hernández

  14. Effect of Tautomerization in the Photophysics of 5-(thiophen-2-yl)-6-aza Uracil

    Article • July 2024, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  15. Special issue on nucleic acid photophysics

    Article • Photochemistry and Photobiology, March 2024, Wiley

    Prof. Carlos E Crespo-Hernández

  16. Summer Research Plan in Polymer Chemistry Laboratory for ACS Project SEED Program

    Article • Journal of Chemical Education, February 2024, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  17. Carbon–sulfur bond elongation as the promoting reaction coordinate in the efficient sub-nanosecond intersystem crossing in thianaphthene derivatives

    Article • Physical Chemistry Chemical Physics, January 2024, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  18. Electronic relaxation pathways in thio-acridone and thio-coumarin: two heavy-atom-free photosensitizers absorbing visible light

    Article • Physical Chemistry Chemical Physics, January 2024, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  19. Photochemical Stability of 5-Methylcytidine Relative to Cytidine: Photophysical Insight for mRNA Therapeutic Applications

    Article • The Journal of Physical Chemistry Letters, November 2023, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  20. Electronic relaxation mechanism of 9‐methyl‐2,6‐diaminopurine and 2,6‐diaminopurine‐2′‐deoxyribose in solution

    Article • Photochemistry and Photobiology, November 2023, Wiley

    Prof. Carlos E Crespo-Hernández

  21. Low‐cost, 3D printed irradiation system for in vitro photodynamic therapy experiments

    Article • Photochemistry and Photobiology, November 2023, Wiley

    Prof. Carlos E Crespo-Hernández

  22. Electronic Relaxation Mechanism of 9-Methyl-2,6-Diaminopurine and 2,6-Diaminopurine-2’-Deoxyribose in Solution

    Article • October 2023, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  23. Photochemical Stability of 5-Methylcytidine Relative to Cytidine: Photophysical Insight for mRNA Therapeutic Applications

    Article • September 2023, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  24. The mRNACalc web server accounts for the hypochromicity of modified nucleosides and enables the accurate quantification of nucleoside-modified mRNA

    Article • July 2023, Cold Spring Harbor Laboratory Press

    Prof. Carlos E Crespo-Hernández

  25. Excited State Dynamics of Dibenzothiophene Derivatives

    Article • The Journal of Physical Chemistry B, June 2023, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  26. Excited State Dynamics of Dibenzothiophene Derivatives

    Article • May 2023, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  27. Photophysical Characterization of Isoguanine in a Prebiotic‐Like Environment

    Article • Chemistry - A European Journal, March 2023, Wiley

    Prof. Carlos E Crespo-Hernández

  28. Resolving Ultrafast Photoinitiated Dynamics of the Hachimoji 5‐aza‐7‐deazaguanine Nucleobase: Impact of Synthetically Expanding the Genetic Alphabet†

    Article • Photochemistry and Photobiology, August 2022, Wiley

    Prof. Carlos E Crespo-Hernández

  29. 2-Oxopurine Riboside: A Dual Fluorescent Analog and Photosensitizer for RNA/DNA Research

    Article • The Journal of Physical Chemistry B, June 2022, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  30. Disclosing the Role of C4-Oxo Substitution in the Photochemistry of DNA and RNA Pyrimidine Monomers: Formation of Photoproducts from the Vibrationally Excited Ground State

    Article • The Journal of Physical Chemistry Letters, February 2022, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  31. On the Photostability of Cyanuric Acid and Its Candidature as a Prebiotic Nucleobase

    Article • Molecules, February 2022, MDPI AG

    Prof. Carlos E Crespo-Hernández

  32. Excited state dynamics of 2′-deoxyisoguanosine and isoguanosine in aqueous solution

    Article • Physical Chemistry Chemical Physics, January 2022, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  33. Photostability of 2,6-diaminopurine and its 2′-deoxyriboside investigated by femtosecond transient absorption spectroscopy

    Article • Physical Chemistry Chemical Physics, January 2022, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  34. Increased Photostability of the Integral mRNA Vaccine Component N1‐Methylpseudouridine Compared to Uridine

    Article • Chemistry - A European Journal, December 2021, Wiley

    Prof. Carlos E Crespo-Hernández

  35. Intramolecular Charge Transfer in the Azathioprine Prodrug Quenches Intersystem Crossing to the Reactive Triplet State in 6‐Mercaptopurine †

    Article • Photochemistry and Photobiology, September 2021, Wiley

    Prof. Carlos E Crespo-Hernández

  36. Intramolecular Charge Transfer in the Azathioprine Prodrug Quenches Intersystem Crossing to the Reactive Triplet State in 6-Mercaptopurine

    Article • August 2021, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  37. Thionation of a Fluorescent Thieno[3,4-d]pyrimidine Derivative for the Development of a Heavy-Atom-Free Photosensitizer

    Article • June 2021, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  38. Excited state dynamics of 7-deazaguanosine and guanosine 5′-monophosphate

    Article • The Journal of Chemical Physics, February 2021, American Institute of Physics

    Prof. Carlos E Crespo-Hernández

  39. Electronic Relaxation Pathways in Heavy-Atom-Free Photosensitizers Absorbing Near-Infrared Radiation and Exhibiting High Yields of Singlet Oxygen Generation

    Article • Journal of the American Chemical Society, February 2021, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  40. The kinetic landscape of an RNA-binding protein in cells

    Article • Nature, February 2021, Springer Science + Business Media

    Prof. Carlos E Crespo-Hernández

  41. Excited State Dynamics of 7-Deazaguanosine and Guanosine 5’ Monophosphate

    Article • January 2021, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  42. Femtosecond intersystem crossing to the reactive triplet state of the 2,6-dithiopurine skin cancer photosensitizer

    Article • Physical Chemistry Chemical Physics, January 2021, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  43. Excited State Dynamics of 7-Deazaguanosine and Guanosine 5’ Monophosphate in Aqueous Solution

    Article • November 2020, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  44. Detection of the thietane precursor in the UVA formation of the DNA 6-4 photoadduct

    Article • Nature Communications, July 2020, Springer Science + Business Media

    Prof. Carlos E Crespo-Hernández

  45. On the Origin of the Photostability of DNA and RNA Monomers: Excited State Relaxation Mechanism of the Pyrimidine Chromophore

    Article • The Journal of Physical Chemistry Letters, June 2020, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  46. Excited State Lifetimes of Sulfur-Substituted DNA and RNA Monomers Probed Using the Femtosecond Fluorescence Up-Conversion Technique

    Article • Molecules, January 2020, MDPI AG

    Prof. Carlos E Crespo-Hernández

  47. Thionated organic compounds as emerging heavy-atom-free photodynamic therapy agents

    Article • Chemical Science, January 2020, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  48. Time Dependent Density Functional Theory Calculations of 4-Thiothymidine-containing DNA Dinucleotides

    Article • June 2019, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  49. Time Dependent Density Functional Theory Calculations of 4-Thiothymidine-containing DNA Dinucleotides

    Article • June 2019, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  50. Excited-State Dynamics in the RNA Nucleotide Uridine 5′-Monophosphate Investigated Using Femtosecond Broadband Transient Absorption Spectroscopy

    Article • The Journal of Physical Chemistry Letters, April 2019, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  51. Excited-State Dynamics in the RNA Nucleotide Uridine 5’-Monophosphate Investigated by Femtosecond Broadband Transient Absorption Spectroscopy

    Article • March 2019, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  52. Photo-protection/photo-damage in natural systems: general discussion

    Article • Faraday Discussions, January 2019, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  53. Photovoltaics and bio-inspired light harvesting: general discussion

    Article • Faraday Discussions, January 2019, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  54. Tracking the origin of photostability in purine nucleobases: the photophysics of 2-oxopurine

    Article • Physical Chemistry Chemical Physics, January 2019, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  55. Photochemical and Photodynamical Properties of Sulfur-Substituted Nucleic Acid Bases,

    Article • Photochemistry and Photobiology, September 2018, Wiley

    Prof. Carlos E Crespo-Hernández, Mr Brennan Ashwood

  56. Heavy-Atom-Substituted Nucleobases in Photodynamic Applications: Substitution of Sulfur with Selenium in 6-Thioguanine Induces a Remarkable Increase in the Rate of Triplet Decay in 6-Selenoguanine

    Article • Journal of the American Chemical Society, August 2018, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  57. Dithionated Nucleobases as Effective Photodynamic Agents against Human Epidermoid Carcinoma Cells

    Article • ChemMedChem, April 2018, Wiley

    Prof. Carlos E Crespo-Hernández

  58. Photodynamics in Metal-Chelating Tetraphenylazadipyrromethene Complexes: Implications for Their Potential Use as Photovoltaic Materials

    Article • The Journal of Physical Chemistry C, April 2018, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  59. Photochemical relaxation pathways of S6-methylthioinosine and O6-methylguanosine in solution

    Article • Faraday Discussions, January 2018, Royal Society of Chemistry

    Mr Brennan Ashwood, Prof. Carlos E Crespo-Hernández

  60. Light induced charge and energy transport in nucleic acids and proteins: general discussion

    Article • Faraday Discussions, January 2018, Royal Society of Chemistry

    Professor John Richard Helliwell, Prof. Carlos E Crespo-Hernández, Dr Ravi Kumar Venkatraman

  61. Light induced damage and repair in nucleic acids and proteins: general discussion

    Article • Faraday Discussions, January 2018, Royal Society of Chemistry

    Professor John Richard Helliwell, Prof. Carlos E Crespo-Hernández

  62. Photocrosslinking between nucleic acids and proteins: general discussion

    Article • Faraday Discussions, January 2018, Royal Society of Chemistry

    Professor John Richard Helliwell, Prof. Carlos E Crespo-Hernández

  63. Photorelaxation and Photorepair Processes in Nucleic and Amino Acid Derivatives

    Article • Molecules, December 2017, MDPI AG

    Prof. Carlos E Crespo-Hernández

  64. Photochemical Relaxation Pathways in Dinitropyrene Isomer Pollutants

    Article • The Journal of Physical Chemistry A, October 2017, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  65. Ultrafast Excited-State Dynamics in Cyclometalated Ir(III) Complexes Coordinated with Perylenebisimide and Its π-Radical Anion Ligands

    Article • The Journal of Physical Chemistry C, September 2017, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández, Mr Brennan Ashwood

  66. Excited-State Dynamics in O6-Methylguanosine: Impact of O6-Methylation on the Relaxation Mechanism of Guanine Monomers

    Article • The Journal of Physical Chemistry Letters, August 2017, American Chemical Society (ACS)

    Mr Brennan Ashwood, Prof. Carlos E Crespo-Hernández

  67. Photochemical Reactivity of dTPT3: A Crucial Nucleobase Derivative in the Development of Semisynthetic Organisms

    Article • The Journal of Physical Chemistry Letters, May 2017, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández, Mr Brennan Ashwood

  68. Solvatochromic Effects on the Absorption Spectrum of 2-Thiocytosine

    Article • The Journal of Physical Chemistry B, May 2017, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández, Mr Brennan Ashwood

  69. Excited-State Dynamics of the Thiopurine Prodrug 6-Thioguanine: Can N9-Glycosylation Affect Its Phototoxic Activity?

    Article • Molecules, February 2017, MDPI AG

    Prof. Carlos E Crespo-Hernández, Mr Brennan Ashwood

  70. Decoding the Molecular Basis for the Population Mechanism of the Triplet Phototoxic Precursors in UVA Light-Activated Pyrimidine Anticancer Drugs

    Article • Chemistry - A European Journal, January 2017, Wiley

    Prof. Carlos E Crespo-Hernández

  71. Electronic relaxation pathways of the biologically relevant pterin chromophore

    Article • Physical Chemistry Chemical Physics, January 2017, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  72. 2-Thiouracil intersystem crossing photodynamics studied by wavelength-dependent photoelectron and transient absorption spectroscopies

    Article • Physical Chemistry Chemical Physics, January 2017, Royal Society of Chemistry

    Mr Brennan Ashwood, Prof. Carlos E Crespo-Hernández

  73. The Photochemical Branching Ratio in 1,6-Dinitropyrene Depends on the Excitation Energy

    Article • The Journal of Physical Chemistry Letters, December 2016, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  74. Can a Six-Letter Alphabet Increase the Likelihood of Photochemical Assault to the Genetic Code?

    Article • Chemistry - A European Journal, October 2016, Wiley

    Prof. Carlos E Crespo-Hernández, Mr Brennan Ashwood

  75. The Triplet State of 6-thio-2′-deoxyguanosine: Intrinsic Properties and Reactivity Toward Molecular Oxygen

    Article • Photochemistry and Photobiology, February 2016, Wiley

    Prof. Carlos E Crespo-Hernández, Marvin Pollum

  76. Direct Observation of Triplet-State Population Dynamics in the RNA Uracil Derivative 1-Cyclohexyluracil

    Article • The Journal of Physical Chemistry Letters, November 2015, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  77. Electronic and Structural Elements That Regulate the Excited-State Dynamics in Purine Nucleobase Derivatives

    Article • Journal of the American Chemical Society, April 2015, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández, Marvin Pollum

  78. Increase in the photoreactivity of uracil derivatives by doubling thionation

    Article • Physical Chemistry Chemical Physics, January 2015, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández, Marvin Pollum

  79. 2,4-Dithiothymine as a Potent UVA Chemotherapeutic Agent

    Article • Journal of the American Chemical Society, December 2014, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández, Marvin Pollum

  80. Communication: The dark singlet state as a doorway state in the ultrafast and efficient intersystem crossing dynamics in 2-thiothymine and 2-thiouracil

    Article • The Journal of Chemical Physics, February 2014, American Institute of Physics

    Prof. Carlos E Crespo-Hernández, Marvin Pollum

  81. Photochemistry of Nucleic Acid Bases and Their Thio- and Aza-Analogues in Solution

    Article • January 2014, Springer Science + Business Media

    Prof. Carlos E Crespo-Hernández, Marvin Pollum

  82. Conformational Control in the Population of the Triplet State and Photoreactivity of Nitronaphthalene Derivatives

    Article • The Journal of Physical Chemistry A, December 2013, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  83. Correction to: Sunscreen use and failures - on site observations on a sun holiday

    Article • Photochemical & Photobiological Sciences, December 2013, Springer Science + Business Media

    Prof. Carlos E Crespo-Hernández

  84. Electronic spectra and excited-state dynamics of 4-fluoro-N,N-dimethylaniline

    Article • Chemical Physics Letters, October 2013, Elsevier

    Prof. Carlos E Crespo-Hernández

  85. Role of intersystem crossing in the fluorescence quenching of 2-aminopurine 2’-deoxyriboside in solution

    Article • Photochemical & Photobiological Sciences, August 2013, Springer Science + Business Media

    Prof. Carlos E Crespo-Hernández

  86. Excited-State Dynamics in Nitro-Naphthalene Derivatives: Intersystem Crossing to the Triplet Manifold in Hundreds of Femtoseconds

    Article • The Journal of Physical Chemistry A, August 2013, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  87. In silico structure-function analysis of E. cloacae nitroreductase

    Article • Proteins Structure Function and Bioinformatics, September 2012, Wiley

    Professor Jerzy Leszczynski, Prof. Carlos E Crespo-Hernández, Dr Olexandr Isayev

  88. Subpicosecond Intersystem Crossing in Mono- and Di(organophosphine)gold(I) Naphthalene Derivatives in Solution

    Article • Journal of the American Chemical Society, September 2012, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  89. Photophysical and photochemical properties of the pharmaceutical compound salbutamol in aqueous solutions

    Article • Chemosphere, June 2011, Elsevier

    Prof. Carlos E Crespo-Hernández

  90. Synthesis, Optical Characterization, and Electrochemical Properties of Isomeric Tetraphenylbenzodifurans Containing Electron Acceptor Groups

    Article • The Journal of Physical Chemistry A, May 2011, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  91. Excited-State Dynamics in 6-Thioguanosine from the Femtosecond to Microsecond Time Scale

    Article • The Journal of Physical Chemistry B, March 2011, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  92. Quenching Enhancement of the Singlet Excited State of Pheophorbide-a by DNA in the Presence of the Quinone Carboquone

    Article • Photochemistry and Photobiology, January 2011, Wiley

    Prof. Carlos E Crespo-Hernández

  93. Room-Temperature Phosphorescence of the DNA Monomer Analogue 4-Thiothymidine in Aqueous Solutions after UVA Excitation

    Article • The Journal of Physical Chemistry Letters, August 2010, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  94. Excited-State Dynamics of (Organophosphine)gold(I) Pyrenyl Isomers

    Article • The Journal of Physical Chemistry Letters, April 2010, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  95. Ultrafast spin crossover in 4-thiothymidine in an ionic liquid

    Article • Chemical Communications, January 2010, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  96. On the origin of ultrafast nonradiative transitions in nitro-polycyclic aromatic hydrocarbons: Excited-state dynamics in 1-nitronaphthalene

    Article • The Journal of Chemical Physics, December 2009, American Institute of Physics

    Prof. Carlos E Crespo-Hernández

  97. Deuterium Isotope Effect on Excited-State Dynamics in an Alternating GC Oligonucleotide

    Article • Journal of the American Chemical Society, December 2009, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  98. The Excited-State Lifetimes in a G⋅C DNA Duplex are Nearly Independent of Helix Conformation and Base-Pairing Motif

    Article • ChemPhysChem, July 2009, Wiley

    Prof. Carlos E Crespo-Hernández

  99. DNA Excited-State Dynamics: From Single Bases to the Double Helix

    Article • Annual Review of Physical Chemistry, May 2009, Annual Reviews

    Prof. Carlos E Crespo-Hernández

  100. Structure–Activity Relationships in Nitro-Aromatic Compounds

    Article • January 2009, Springer Science + Business Media

    Prof. Carlos E Crespo-Hernández

  101. Ionization Energy Thresholds of Microhydrated Adenine and Its Tautomers

    Article • The Journal of Physical Chemistry A, December 2008, American Chemical Society (ACS)

    Professor Jerzy Leszczynski, Prof. Carlos E Crespo-Hernández

  102. Ground-State Recovery Following UV Excitation is Much Slower in G·C−DNA Duplexes and Hairpins Than in Mononucleotides

    Article • Journal of the American Chemical Society, August 2008, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  103. UV excitation of single DNA and RNA strands produces high yields of exciplex states between two stacked bases

    Article • Proceedings of the National Academy of Sciences, July 2008, Proceedings of the National Academy of Sciences

    Prof. Carlos E Crespo-Hernández

  104. Environmental Photochemistry of Nitro-PAHs: Direct Observation of Ultrafast Intersystem Crossing in 1-Nitropyrene

    Article • The Journal of Physical Chemistry A, July 2008, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  105. Theoretical Elucidation of Conflicting Experimental Data on Vertical Ionization Potentials of Microhydrated Thymine

    Article • The Journal of Physical Chemistry A, May 2008, American Chemical Society (ACS)

    Professor Jerzy Leszczynski, Prof. Carlos E Crespo-Hernández

  106. Predicting Thymine Dimerization Yields from Molecular Dynamics Simulations

    Article • Biophysical Journal, May 2008, Elsevier

    Prof. Carlos E Crespo-Hernández

  107. Determination of Redox Potentials for the Watson−Crick Base Pairs, DNA Nucleosides, and Relevant Nucleoside Analogues

    Article • The Journal of Physical Chemistry B, May 2007, American Chemical Society (ACS)

    Professor Jerzy Leszczynski, Prof. Carlos E Crespo-Hernández

  108. Thymine Dimerization in DNA Is an Ultrafast Photoreaction

    Article • Science, February 2007, American Association for the Advancement of Science

    Prof. Carlos E Crespo-Hernández

  109. Internal conversion to the electronic ground state occurs via two distinct pathways for pyrimidine bases in aqueous solution

    Article • Proceedings of the National Academy of Sciences, January 2007, Proceedings of the National Academy of Sciences

    Prof. Carlos E Crespo-Hernández

  110. Vertical Singlet Excitations on Adenine Dimer: A Time Dependent Density Functional Study

    Article • January 2007, American Institute of Physics

    Prof. Carlos E Crespo-Hernández

  111. Solvent-Dependent Photophysics of 1-Cyclohexyluracil:  Ultrafast Branching in the Initial Bright State Leads Nonradiatively to the Electronic Ground State and a Long-Lived 1 nπ* State

    Article • The Journal of Physical Chemistry B, September 2006, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  112. Role of Sequence and Conformation on the Photochemistry and the Photophysics of A−T DNA Dimers:  An Experimental and Computational Approach

    Article • The Journal of Physical Chemistry B, August 2006, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  113. Molecular spectroscopy: Complexity of excited-state dynamics in DNA (Reply)

    Article • Nature, June 2006, Nature

    Prof. Carlos E Crespo-Hernández

  114. Influence of Microhydration on the Ionization Energy Thresholds of Thymine:  Comparisons of Theoretical Calculations with Experimental Values

    Article • The Journal of Physical Chemistry A, June 2006, American Chemical Society (ACS)

    Professor Jerzy Leszczynski, Prof. Carlos E Crespo-Hernández

  115. The Influence of Microhydration on the Ionization Energy Thresholds of Uracil and Thymine

    Article • The Journal of Physical Chemistry A, October 2005, American Chemical Society (ACS)

    Professor Jerzy Leszczynski, Prof. Carlos E Crespo-Hernández

  116. Base stacking controls excited-state dynamics in A·T DNA

    Article • Nature, August 2005, Nature

    Prof. Carlos E Crespo-Hernández

  117. Ab Initio Ionization Energy Thresholds of DNA and RNA Bases in Gas Phase and in Aqueous Solution

    Article • The Journal of Physical Chemistry A, July 2004, American Chemical Society (ACS)

    Professor Jerzy Leszczynski, Prof. Carlos E Crespo-Hernández

  118. Influence of Secondary Structure on Electronic Energy Relaxation in Adenine Homopolymers

    Article • The Journal of Physical Chemistry B, July 2004, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  119. Ultrafast Excited-State Dynamics in Nucleic Acids

    Article • Chemical Reviews, April 2004, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  120. Formamidopyrimidines as major products in the low- and high-intensity UV irradiation of guanine derivatives

    Article • Journal of Photochemistry and Photobiology B Biology, February 2004, Elsevier

    Prof. Carlos E Crespo-Hernández

  121. Strickler–Berg analysis of excited singlet state dynamics in DNA and RNA nucleosides

    Article • Faraday Discussions, January 2004, Royal Society of Chemistry

    Prof. Carlos E Crespo-Hernández

  122. Magnetic field-enhanced photoinization of 6-methylpurine

    Article • Chemical Physics Letters, December 2003, Elsevier

    Prof. Carlos E Crespo-Hernández

  123. Near Threshold Photo-Oxidation of Dinucleotides Containing Purines upon 266 nm Nanosecond Laser Excitation. The Role of Base Stacking, Conformation, and Sequence †

    Article • The Journal of Physical Chemistry B, January 2003, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  124. The 254 nm low intensity and 266 nm laser photochemistry of adenosine.

    Article • Journal of Photochemistry and Photobiology A Chemistry, September 2002, Elsevier

    Prof. Carlos E Crespo-Hernández

  125. Photoionization of DNA and RNA Bases, Nucleosides and Nucleotides Through a Combination of One- and Two-photon Pathways upon 266 nm Nanosecond Laser Excitation¶

    Article • Photochemistry and Photobiology, January 2002, Wiley

    Prof. Carlos E Crespo-Hernández

  126. Photochemistry of Pyrene on Unactivated and Activated Silica Surfaces

    Article • Environmental Science & Technology, February 2000, American Chemical Society (ACS)

    Prof. Carlos E Crespo-Hernández

  127. Part II. Mechanism of Formation of Guanine as one of the Major Products in the 254 nm Photolysis of Guanine Derivatives: Concentration and pH Effects

    Article • Photochemistry and Photobiology, January 2000, Wiley

    Prof. Carlos E Crespo-Hernández

  128. Part I. Photochemical and Photophysical Studies of Guanine Derivatives: Intermediates Contributing to its Photodestruction Mechanism in Aqueous Solution and the Participation of the Electron Adduct

    Article • Photochemistry and Photobiology, January 2000, Wiley

    Prof. Carlos E Crespo-Hernández