All Stories

  1. Gas-Phase Infrared Action Spectroscopy of CH2Cl+ and CH3ClH+: Likely Protagonists in Chlorine Astrochemistry

    Article • Molecules, January 2024, MDPI AG

    Sandra Brünken

  2. Ionic fragmentation products of benzonitrile as important intermediates in the growth of polycyclic aromatic hydrocarbons

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

    Sandra Brünken

  3. Leak-out spectroscopy as alternative method to rare-gas tagging for the Renner–Teller perturbed HCCH+ and DCCD+ ions

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

    Sandra Brünken

  4. Vibrational Predissociation Spectra of C2N− and C3N−: Bending and Stretching Vibrations

    Article • ChemPhysChem, July 2023, Wiley

    Sandra Brünken

  5. Infrared action spectroscopy as tool for probing gas-phase dynamics: protonated dimethyl ether, (CH 3 ) 2 OH + , formed by the reaction of CH ...

    Article • Molecular Physics, June 2023, Taylor & Francis

    Sandra Brünken

  6. A vibrational action spectroscopic study of the Renner-Teller and spin-orbit affected cyanoacetylene radical cation HC3N+

    Article • The Journal of Chemical Physics, January 2023, American Institute of Physics

    Sandra Brünken

  7. Computational astrochemistry: general discussion

    Article • Faraday Discussions, January 2023, Royal Society of Chemistry

    Sandra Brünken

  8. Fingerprinting fragments of fragile interstellar molecules: dissociation chemistry of pyridine and benzonitrile revealed by infrared spectroscopy and theory

    Article • Faraday Discussions, January 2023, Royal Society of Chemistry

    Sandra Brünken

  9. Laboratory astrochemistry of the gas phase: general discussion

    Article • Faraday Discussions, January 2023, Royal Society of Chemistry

    Sandra Brünken

  10. Observational astrochemistry in the age of ALMA, NOEMA, JWST and beyond!: general discussion

    Article • Faraday Discussions, January 2023, Royal Society of Chemistry

    Sandra Brünken

  11. Low-temperature nitrogen-bearing polycyclic aromatic hydrocarbon formation routes validated by infrared spectroscopy

    Article • Nature Astronomy, July 2022, Springer Science + Business Media

    Sandra Brünken

  12. Predissociation spectroscopy of cold CN−H2 and CN−D2

    Article • Molecular Physics, June 2022, Taylor & Francis

    Sandra Brünken

  13. Deuteration of c-C3H2 towards the pre-stellar core L1544

    Article • Astronomy and Astrophysics, June 2022, EDP Sciences

    Sandra Brünken

  14. Spectroscopic characterisation of the isomeric H2NCH+ and H2CNH+ radical cations

    Article • Journal of Molecular Spectroscopy, June 2022, Elsevier

    Sandra Brünken

  15. Spectroscopic Detection of Cyano-Cyclopentadiene Ions as Dissociation Products upon Ionization of Aniline

    Article • The Journal of Physical Chemistry A, May 2022, American Chemical Society (ACS)

    Sandra Brünken

  16. PDRs4All: A JWST Early Release Science Program on Radiative Feedback from Massive Stars

    Article • Publications of the Astronomical Society of the Pacific, May 2022, Institute of Physics Publishing

    Sandra Brünken, Dr Farid Salama

  17. The Zeeman effect in CO+ observed with rotational action spectroscopy

    Article • Molecular Physics, April 2022, Taylor & Francis

    Sandra Brünken

  18. Unidirectional Double- and Triple-Hydrogen Rearrangement Reactions Probed by Infrared Ion Spectroscopy

    Article • Journal of the American Society for Mass Spectrometry, April 2022, American Chemical Society (ACS)

    Sandra Brünken

  19. Infrared action spectroscopy of fundamental nitrilium ions: Protonated vinyl- and ethyl cyanide

    Article • Journal of Molecular Spectroscopy, April 2022, Elsevier

    Sandra Brünken

  20. Infrared spectroscopy of the benzylium-like (and tropylium-like) isomers formed in the –H dissociative ionization of methylated PAHs

    Article • Journal of Molecular Spectroscopy, March 2022, Elsevier

    Sandra Brünken

  21. Polycyclic aromatic hydrocarbon growth in a benzene discharge explored by IR-UV action spectroscopy

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

    Sandra Brünken

  22. Formation of the acenaphthylene cation as a common C2H2-loss fragment in dissociative ionization of the PAH isomers anthracene and phenanthrene

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

    Sandra Brünken

  23. Strong ortho/para effects in the vibrational spectrum of Cl−(H2)

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

    Sandra Brünken

  24. Infrared predissociation spectroscopy of protonated methyl cyanide, CH3CNH+

    Article • Journal of Molecular Spectroscopy, May 2021, Elsevier

    Sandra Brünken

  25. Cryogenic Messenger-IR Ion Spectroscopy Study of Phenol & Aniline Molecular Ions and of the common Fragment Ion [C5H6]+ formed by EI-MS

    Article • Journal of Molecular Spectroscopy, April 2021, Elsevier

    Sandra Brünken

  26. Infrared action spectroscopy of doubly charged PAHs and their contribution to the aromatic infrared bands

    Article • Astronomy and Astrophysics, February 2021, EDP Sciences

    Sandra Brünken

  27. Hunting for the elusive methylene radical

    Article • Astronomy and Astrophysics, January 2021, EDP Sciences

    Sandra Brünken

  28. Laboratory gas-phase vibrational spectra of [C3H3]+ isomers and isotopologues by IRPD spectroscopy

    Article • Journal of Molecular Spectroscopy, November 2020, Elsevier

    Sandra Brünken

  29. Stable isomeric structures of the pyridine cation (C5H5N•+) and protonated pyridine (C5H5NH+) elucidated by cold ion infrared spectroscopy

    Article • Journal of Molecular Spectroscopy, August 2020, Elsevier

    Sandra Brünken

  30. Laboratory spectroscopy techniques to enable observations of interstellar ion chemistry

    Article • Nature Reviews Physics, July 2020, Springer Science + Business Media

    Sandra Brünken

  31. Descendant of the X-ogen carrier and a ‘mass of 69’: infrared action spectroscopic detection of HC3O+ and HC3S+

    Article • Molecular Physics, June 2020, Taylor & Francis

    Sandra Brünken

  32. Vibrational Excitation Hindering an Ion-Molecule Reaction: The c−C3H2+−H2 Collision Complex

    Article • Physical Review Letters, June 2020, American Physical Society (APS)

    Sandra Brünken

  33. High-resolution rovibrational spectroscopy of c-  C3H2+: The ν 7C–H antisymmetric stretching band

    Article • Journal of Molecular Structure, March 2020, Elsevier

    Sandra Brünken

  34. Structural investigation of doubly-dehydrogenated pyrene cations

    Article • Physical Chemistry Chemical Physics, January 2020, Royal Society of Chemistry

    Sandra Brünken

  35. Gas-Phase Vibrational Spectroscopy of the Hydrocarbon Cations l-C3H+, HC3H+, and c-C3H2+: Structures, Isomers, and the Influence of Ne-Tagging

    Article • The Journal of Physical Chemistry A, August 2019, American Chemical Society (ACS)

    Sandra Brünken

  36. HINDERING AN ION-NEUTRAL REACTION USING VIBRATIONAL EXCITATION: THE _7 ROVIBRATIONAL BAND OF c-C3H2+

    Article • June 2019, International Symposium on Molecular Spectroscopy

    Sandra Brünken

  37. SPECTROSCOPIC STUDIES OF PROTONATED AMINES: CH3NH3+ AND C2H5NH3+

    Article • June 2019, International Symposium on Molecular Spectroscopy

    Sandra Brünken

  38. The FELion cryogenic ion trap beam line at the FELIX free-electron laser laboratory: infrared signatures of primary alcohol cations

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

    Sandra Brünken

  39. Low frequency vibrational anharmonicity and nuclear spin effects of Cl–(H2) and Cl–(D2)

    Article • The Journal of Chemical Physics, November 2018, American Institute of Physics

    Dennis Dinu, Sandra Brünken

  40. Two of a kind – unraveling isomeric structures using FELIX

    Article • ChemPhysChem, October 2018, Wiley

    Sandra Brünken

  41. VIBRATIONAL AND ROTATIONAL SPECTROSCOPY IN CRYOGENIC ION TRAPS

    Article • June 2018, International Symposium on Molecular Spectroscopy

    Sandra Brünken

  42. Identification of the fragment of the 1-methylpyrene cation by mid-IR spectroscopy

    Article • Chemical Physics Letters, April 2018, Elsevier

    Sandra Brünken

  43. FELIX SPECTROSCOPY OF LIKELY ASTRONOMICAL MOLECULAR IONS: HC3O+, C2H3CNH+, and C2H5CNH+

    Article • June 2017, International Symposium on Molecular Spectroscopy

    Sandra Brünken

  44. Detection of Interstellar Ortho-D2H+with SOFIA

    Article • The Astrophysical Journal, May 2017, American Astronomical Society

    Sandra Brünken

  45. An observational study of dust nucleation in Mira (o Ceti)

    Article • Astronomy and Astrophysics, March 2017, EDP Sciences

    Sandra Brünken

  46. High-resolution vibrational and rotational spectroscopy of CD 2 H + in a cryogenic ion trap

    Article • Journal of Molecular Spectroscopy, February 2017, Elsevier

    Sandra Brünken

  47. Rotational state-dependent attachment of He atoms to cold molecular ions: An action spectroscopic scheme for rotational spectroscopy

    Article • Journal of Molecular Spectroscopy, February 2017, Elsevier

    Sandra Brünken, Dr. Jesus Perez Rios

  48. Laboratory rotational ground state transitions of NH3D+and CF+

    Article • Astronomy and Astrophysics, September 2016, EDP Sciences

    Sandra Brünken

  49. Chemical differentiation in a prestellar core traces non-uniform illumination

    Article • Astronomy and Astrophysics, August 2016, EDP Sciences

    Sandra Brünken

  50. An observational study of dust nucleation in Mira (o Ceti)

    Article • Astronomy and Astrophysics, July 2016, EDP Sciences

    Sandra Brünken

  51. VIBRATIONAL AND ROTATIONAL SPECTROSCOPY OF CD2H+

    Article • June 2016, International Symposium on Molecular Spectroscopy

    Sandra Brünken

  52. INFRARED PREDISSOCIATION SPECTROSCOPY OF THE HYDROCARBON CATIONS C3H+, C2H+, and C3H2+

    Article • June 2016, International Symposium on Molecular Spectroscopy

    Sandra Brünken

  53. A study of the C3H2isomers and isotopologues: first interstellar detection of HDCCC

    Article • Astronomy and Astrophysics, February 2016, EDP Sciences

    Sandra Brünken

  54. Molecular polymorphism: microwave spectra, equilibrium structures, and an astronomical investigation of the HNCS isomeric family

    Article • Physical Chemistry Chemical Physics, January 2016, Royal Society of Chemistry

    Sandra Brünken

  55. FIRST INFRARED PREDISSOCIATION SPECTRA OF He-TAGGED PROTONATED PRIMARY ALCOHOLS AT 4 K

    Article • June 2015, International Symposium on Molecular Spectroscopy

    Sandra Brünken

  56. IR SPECTRA OF COLD PROTONATED METHANE

    Article • June 2015, International Symposium on Molecular Spectroscopy

    Sandra Brünken

  57. ROTATIONAL ACTION SPECTROSCOPY VIA STATE-SELECTIVE HELIUM ATTACHMENT

    Article • June 2015, International Symposium on Molecular Spectroscopy

    Sandra Brünken

  58. Experimental ground-state combination differences of CH5+

    Article • Science, March 2015, American Association for the Advancement of Science

    Sandra Brünken

  59. High Resolution Laboratory Spectroscopy

    Article • Astronomy and Astrophysics, January 2015, EDP Sciences

    Sandra Brünken

  60. H2D+ observations give an age of at least one million years for a cloud core forming Sun-like stars

    Article • Nature, November 2014, Springer Science + Business Media

    Sandra Brünken

  61. Two-Photon Rotational Action Spectroscopy of ColdOH−at 1 ppb Accuracy

    Article • Physical Review Letters, June 2014, American Physical Society (APS)

    Sandra Brünken

  62. LIICG - A NEW METHOD FOR ROTATIONAL AND RO-VIBRATIONAL SPECTROSCOPY AT 4K

    Article • June 2014, International Symposium on Molecular Spectroscopy

    Sandra Brünken

  63. LABORATORY ROTATIONAL SPECTRUM OFl-C3H+AND CONFIRMATION OF ITS ASTRONOMICAL DETECTION

    Article • The Astrophysical Journal Letters, February 2014, Institute of Physics Publishing

    Sandra Brünken

  64. COLTRAP: a 22-pole ion trapping machine for spectroscopy at 4 K

    Article • Applied Physics B Photophysics and Laser Chemistry, October 2013, Springer Science + Business Media

    Sandra Brünken

  65. Accurate High-N Rest Frequencies for CO+, an Ideal Tracer of Photon-Dominated Regions

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

    Sandra Brünken

  66. High-Resolution Spectroscopy of CH2D+ in a Cold 22-Pole Ion Trap

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

    Sandra Brünken

  67. INTERSTELLAR DETECTION OF c-C3D2

    Article • The Astrophysical Journal Letters, May 2013, Institute of Physics Publishing

    Sandra Brünken

  68. Pure rotational spectra of TiO and TiO2in VY Canis Majoris

    Article • Astronomy and Astrophysics, March 2013, EDP Sciences

    Sandra Brünken

  69. Dust-forming molecules in VY Canis Majoris (and Betelgeuse)

    Article • EAS Publications Series, January 2013, EDP Sciences

    Sandra Brünken

  70. Transfer of a proton between H2 and O2

    Article • Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences, October 2012, Royal Society Publishing

    Sandra Brünken

  71. Measurement and analysis of new terahertz and far-infrared spectra of high temperature water

    Article • Journal of Molecular Spectroscopy, September 2012, Elsevier

    Sandra Brünken

  72. THE ROTATIONAL SPECTRA OF29SiC2AND30SiC2

    Article • The Astrophysical Journal Supplement Series, September 2011, Institute of Physics Publishing

    Sandra Brünken

  73. Millimeter-wave spectroscopy of titanium dioxide, TiO2

    Article • Journal of Molecular Spectroscopy, July 2011, Elsevier

    Sandra Brünken

  74. AN INTERFEROMETRIC SPECTRAL-LINE SURVEY OF IRC+10216 IN THE 345 GHz BAND

    Article • The Astrophysical Journal Supplement Series, March 2011, Institute of Physics Publishing

    Sandra Brünken

  75. Circumstellar molecular composition of the oxygen-rich AGB star IK Tauri

    Article • Astronomy and Astrophysics, June 2010, EDP Sciences

    Sandra Brünken

  76. Interstellar HOCN in the Galactic center region

    Article • Astronomy and Astrophysics, June 2010, EDP Sciences

    Sandra Brünken

  77. Terahertz spectroscopy of oxygen, O2, in its 3Σ−g and 1Δ electronic states

    Article • Journal of Quantitative Spectroscopy and Radiative Transfer, June 2010, Elsevier

    Sandra Brünken

  78. The puzzling behavior of HNCO isomers in molecular clouds

    Article • Astronomy and Astrophysics, June 2010, EDP Sciences

    Sandra Brünken

  79. Orbital motion of the young brown dwarf companion TWA 5 B

    Article • Astronomy and Astrophysics, June 2010, EDP Sciences

    Sandra Brünken

  80. LABORATORY DETECTION OF THIOCYANIC ACID HSCN

    Article • The Astrophysical Journal, November 2009, Institute of Physics Publishing

    Sandra Brünken

  81. DETECTION OF A NEW INTERSTELLAR MOLECULE: THIOCYANIC ACID HSCN

    Article • The Astrophysical Journal, August 2009, Institute of Physics Publishing

    Sandra Brünken

  82. Search for corannulene (C20H10) in the Red Rectangle

    Article • Monthly Notices of the Royal Astronomical Society, August 2009, Oxford University Press (OUP)

    Sandra Brünken

  83. LABORATORY DETECTION OF HOCN AND TENTATIVE IDENTIFICATION IN Sgr B2

    Article • The Astrophysical Journal, May 2009, Institute of Physics Publishing

    Sandra Brünken

  84. SUBMILLIMETER NARROW EMISSION LINES FROM THE INNER ENVELOPE OF IRC+10216

    Article • The Astrophysical Journal, February 2009, Institute of Physics Publishing

    Sandra Brünken

  85. DETECTION OF VIBRATIONALLY EXCITED CO IN IRC+10216

    Article • The Astrophysical Journal, January 2009, Institute of Physics Publishing

    Sandra Brünken

  86. Millimeter wave spectroscopy of titanium monoxide and titanium dioxide

    Article • September 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Sandra Brünken

  87. Laboratory and Astronomical Detection of the Negative Molecular Ion C3N−

    Article • The Astrophysical Journal, April 2008, Institute of Physics Publishing

    Sandra Brünken

  88. The Rotational Spectrum of TiO2

    Article • The Astrophysical Journal, April 2008, Institute of Physics Publishing

    Sandra Brünken

  89. Observation of C$_8$H$^-$ toward IRC +10216

    Article • Publications of the Astronomical Society of Japan, October 2007, Oxford University Press (OUP)

    Sandra Brünken

  90. Detection of the Carbon Chain Negative Ion C8H-in TMC-1

    Article • The Astrophysical Journal, June 2007, Institute of Physics Publishing

    Sandra Brünken

  91. The rotational spectrum of CN−

    Article • The Journal of Chemical Physics, May 2007, American Institute of Physics

    Sandra Brünken

  92. Laboratory detection of the negative molecular ion CCH-

    Article • Astronomy and Astrophysics, February 2007, EDP Sciences

    Sandra Brünken

  93. Rotational Spectra of the Carbon Chain Negative Ions C4H-and C8H-

    Article • The Astrophysical Journal, January 2007, Institute of Physics Publishing

    Sandra Brünken

  94. High resolution rotational spectroscopy on D2O up to 2.7 THz in its ground and first excited vibrational bending states

    Article • Physical Chemistry Chemical Physics, January 2007, Royal Society of Chemistry

    Sandra Brünken

  95. Improved line frequencies for the nucleic acid base uracil for a radioastronomical search

    Article • Astronomy and Astrophysics, September 2006, EDP Sciences

    Sandra Brünken

  96. Gas-phase detection of HSOD and empirical equilibrium structure of oxadisulfane

    Article • Journal of Molecular Structure, August 2006, Elsevier

    Sandra Brünken

  97. High resolution rotation–inversion spectroscopy on doubly deuterated ammonia, ND2H, up to 2.6THz

    Article • Journal of Molecular Structure, August 2006, Elsevier

    Sandra Brünken

  98. Submillimeter vibrationally excited water emission from the peculiar red supergiant VY Canis Majoris

    Article • Astronomy and Astrophysics, July 2006, EDP Sciences

    Sandra Brünken

  99. Terahertz Rotational Spectroscopy

    Article • Proceedings of the International Astronomical Union, March 2006, Cambridge University Press

    Sandra Brünken

  100. The rotational spectra of the ground and first excited bending states of deuterium isocyanide, DNC, up to 2THz

    Article • Journal of Molecular Structure, January 2006, Elsevier

    Sandra Brünken

  101. Analysis of the rotational spectrum of methylene (CH2) in its vibronic ground state with an Euler expansion of the Hamiltonian

    Article • The Journal of Chemical Physics, October 2005, American Institute of Physics

    Sandra Brünken

  102. Accurate rotational spectroscopy of sulfur dioxide, SO2, in its ground vibrational and first excited bending states, v2=0, 1, up to 2THz

    Article • Journal of Molecular Spectroscopy, August 2005, Elsevier

    Sandra Brünken

  103. Asymmetric rotor analysis of DSOD spectra up to the rQ3 branch near 653GHz

    Article • Journal of Molecular Structure, May 2005, Elsevier

    Sandra Brünken

  104. Far-infrared detection of methylene

    Article • Astronomy and Astrophysics, February 2005, EDP Sciences

    Sandra Brünken

  105. Doppler-limited rotational spectrum of the NH radical in the 2THz region

    Article • Journal of Molecular Spectroscopy, August 2004, Elsevier

    Sandra Brünken

  106. High-resolution terahertz spectrum of CH2 — Low J rotational transitions near 2 THz

    Article • Canadian Journal of Chemistry, June 2004, Canadian Science Publishing

    Sandra Brünken

  107. Sub-Doppler and Doppler spectroscopy of DCN isotopomers in the terahertz region: ground and first excited bending states (v1v2v3)=(01e,f0)

    Article • Journal of Molecular Spectroscopy, June 2004, Elsevier

    Sandra Brünken

  108. High Resolution Spectroscopy of HCN Isotopomers: H13CN, HC15N, and H13C15N in the Ground and First Excited Bending Vibrational State

    Article • Zeitschrift für Naturforschung A, January 2004, De Gruyter

    Sandra Brünken

  109. Submillimeter-wave spectroscopy of HCN in excited vibrational states

    Article • Journal of Molecular Spectroscopy, August 2003, Elsevier

    Sandra Brünken

  110. Detection of HCN Directl‐Type Transitions Probing Hot Molecular Gas in the Proto–Planetary Nebula CRL 618

    Article • The Astrophysical Journal, March 2003, Institute of Physics Publishing

    Sandra Brünken

  111. High accuracy measurements on the ground state rotational spectrum of formaldehyde (H2CO) up to 2 THzElectronic supplementary information (ESI) available: Newly measured pure rotational transitions. See http://www.rsc.org/suppdata/cp/b3/b301657a/

    Article • Physical Chemistry Chemical Physics, March 2003, Royal Society of Chemistry

    Sandra Brünken

  112. A Concise New Look at the [CLC][ITAL]l[/ITAL][/CLC]-Type Spectrum of H[TSUP]12[/TSUP]C[TSUP]14[/TSUP]N

    Article • The Astrophysical Journal, March 2003, Institute of Physics Publishing

    Sandra Brünken

  113. The Ground State Spectroscopic Parameters and Equilibrium Structure of PD3

    Article • Journal of Molecular Spectroscopy, September 2002, Elsevier

    Sandra Brünken

  114. Decay of theAr2s−1and2p−1andKr3p−1and3d−1hole states studied by photoelectron-ion coincidence spectroscopy

    Article • Physical Review A, March 2002, American Physical Society (APS)

    Sandra Brünken

  115. A photoelectron–photoion coincidence method for the investigation of decay probabilities after innershell photoionization

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, July 2001, Elsevier

    Sandra Brünken

  116. Simultaneous determination of radiative and nonradiative decay channels in the neonKshell

    Article • Physical Review A, June 2000, American Physical Society (APS)

    Sandra Brünken

  117. multiplet structure of atomic Lu studied by photoelectron spectroscopy

    Article • Journal of Physics B Atomic Molecular and Optical Physics, January 1999, Institute of Physics Publishing

    Sandra Brünken