All Stories

  1. Mechanistic insights into palladium-catalyzed nucleophilic aromatic fluorination: From early discoveries to recent Design of new Ligands
  2. Ligand and solvent effects on the aromatic trifluoromethylation via reductive elimination from palladium
  3. Revealing the Mechanism of Alcohol Side Product Formation in Crown Ether-Mediated Nucleophilic Fluorination Using Acetonitrile as Solvent
  4. Nucleophilic Fluorination of a Secondary Alkyl Bromide with KF(18‐Crown‐6) and Bulky Diols: Microsolvation Causes Chemoselectivity Inversion in the Free Energy Profile
  5. Reversal of Regioselectivity in the Nucleophilic Fluorination of 1,2‐Dimesylate with Potassium Fluoride and 18‐Crown‐6
  6. Bioactive bergenin derivatives from Endopleura uchi amazonian plant: synthesis, chemical reactivity and anti-tumoral activity
  7. Flavanone‐enabled CuAAC Reaction: Noninnocent Reagents Driving a Mononuclear Mechanism Over the Dinuclear Paradigm
  8. Modelagem de Reações Químicas em Fase Condensada: Alguns Conceitos Importantes
  9. Effects of Hydrogen Bonding Solvation by Diverse Fluorinated Bulky Alcohols on the Reaction Rate and Selectivity in Crown Ether Mediated Nucleophilic Fluorination in an Aprotic Solvent
  10. Theoretical design of new ligands to boost reaction rate and selectivity in palladium‐catalyzed aromatic fluorination
  11. Hybrid Cluster-Continuum Method for Single-Ion Solvation Free Energy in Acetonitrile Solvent
  12. Bifunctional iminophosphorane organocatalyst with additional hydrogen bonding: Calculations predict enhanced catalytic performance in a michael addition reaction
  13. Elucidating the Origin of Regioselectivity in Palladium-Catalyzed Aromatic Fluorination: Mechanistic Investigation and Microkinetic Analysis
  14. Modeling the alkylation of amines with alkyl bromides: explaining the low selectivity due to multiple alkylation
  15. Hydrogenation of CO2 to CH3OH catalyzed by a ruthenium-triphos complex: Theoretical free energy profile and microkinetic modeling
  16. Trifluoromethyl anion: Generation, stability, and SNAr reactivity in crown ether complex analyzed by theoretical calculations
  17. Photochemical radical benzylic bromination with Br2: Computational modeling of the mechanism and microkinetic
  18. Accelerating SN2 nucleophilic fluorination of primary alkyl bromide using an 18-crown-6 and fluorinated bulky alcohol phase transfer system
  19. Formation of α,β-Unsaturated Imines in Apolar Aprotic Solvent: Effect of Hidden Acid Catalysts Analyzed by Theoretical Calculations
  20. Carboxylic acid catalysis on the imine formation versus aza‐Michael reaction in apolar aprotic solvent
  21. Copper-Catalyzed Aromatic Fluorination of 2-(2-bromophenyl)pyridine via Cu(I)/Cu(III) Mechanism in Acetonitrile Solvent: Cluster-Continuum Free Energy Profile and Microkinetic Analysis
  22. Copper-mediated aromatic fluorination using N-heterocycle-carbene ligand: Free energy profile of the Cu(I)/Cu(III) and Cu(II) radical mechanisms
  23. Car-Parrinello molecular dynamics study of CuF, AgF, CuPF6 and AgPF6 in acetonitrile solvent and Cluster-Continuum calculation of the solvation free energy of Cu(I), Ag(I) and Li(I)
  24. SN2 versus E2 reactions in a complex microsolvated environment: theoretical analysis of the equilibrium and activation steps of a nucleophilic fluorination
  25. QM/MM and molecular dynamics simulation of the structure and dissociation of CuF in acetonitrile solvent
  26. AVALIAÇÃO DOS CIENTISTAS: UTILIZAMOS AS MÉTRICAS CORRETAS?
  27. Friedel-Crafts Reaction: Theoretical Study of the Mechanism of Benzene Alkylation with Isopropyl Chloride Catalyzed by AlCl3 and Al2Cl6
  28. Bifunctional Primary Amino‐thiourea Asymmetric Catalysis: The Imine‐Iminium Ion Mechanism in the Michael Addition of Nitromethane to Enone
  29. Catalytic cycle and off-cycle steps in the palladium-catalyzed fluorination of aryl bromide with biaryl monophosphine ligands: Theoretical free energy profile
  30. Diradical character of the bond breaking in the reaction of Br2 with benzene: Reliable barriers using the CR-CC(2,3) method
  31. Phenol alkylation under phase transfer catalysis conditions: Insights on the mechanism and kinetics from computations
  32. FORMAÇÃO DE AZEÓTROPOS DO PONTO DE VISTA DA TERMODINÂMICA DE SOLVATAÇÃO
  33. Single-ion solvation free energy: A new cluster–continuum approach based on the cluster expansion method
  34. The role of intermolecular forces in ionic reactions: the solvent effect, ion-pairing, aggregates and structured environment
  35. Micro-solvation and counter ion effects on ionic reactions: Activation of potassium fluoride with 18-crown-6 and tert-butanol in aprotic solvents
  36. The role of carboxylic acid impurity in the mechanism of the formation of aldimines in aprotic solvents
  37. Nucleophilic Fluorination with KF Catalyzed by 18-Crown-6 and Bulky Diols: A Theoretical and Experimental Study
  38. Hydroperoxo on the Niobium Oxyhydroxide Surface as the Active Species in the Catalyzed Oxidation of Organic Sulfide by Hydrogen Peroxide
  39. Reactivity and stability of ion pairs, dimers and tetramers versus solvent polarity: SNAr fluorination of 2-bromobenzonitrile with tetramethylammonium fluoride
  40. Mechanisms of the formation of imines in aqueous solution and the effect of the pH: a theoretical analysis
  41. Theoretical design of new macrocycles for nucleophilic fluorination with KF: thiourea-crown-ether is predicted to overcome [2.2.2]-cryptand
  42. Theoretical free energy profile and benchmarking of functionals for amino-thiourea organocatalyzed nitro-Michael addition reaction
  43. Synthesis and characterization of 1,3,5-triarylpyrazol-4-ols and 3,5-diarylisoxazol-4-ols from chalcones and theoretical studies of the stability of pyrazol-4-ol toward acid dehydration
  44. Free Energy Profile of a Model Palladium Catalyzed Fluorination of Aryl Bromide with Cesium Fluoride
  45. Second harmonic generation in pyrazoline derivatives of dibenzylideneacetones and chalcone: A combined experimental and theoretical approach
  46. Is the iminium ion mechanism viable in the piperidine-catalyzed 1,4-conjugate addition reaction of nitroalkanes to α,β-unsaturated ketones?
  47. Hybrid discrete‐continuum solvation methods
  48. Counter-ion and solvent effects in the C- and O-alkylation of the phenoxide ion with allyl chloride
  49. How difficult are anion-molecule SNAr reactions of unactivated arenes in the gas phase, dimethyl sulfoxide, and methanol solvents?
  50. Theoretical study of the mechanism and regioselectivity of the alkylation reaction of the phenoxide ion in polar protic and aprotic solvents
  51. Free energy profile and microkinetic modeling of base-catalyzed conjugate addition reaction of nitroalkanes to α,β-unsaturated ketones in polar and apolar solvents
  52. Cleaving paraoxon with hydroxylamine: Ammonium oxide isomer favors a Frontside attack mechanism
  53. Mechanism of nucleophilic fluorination promoted by bis-tert -alcohol-functionalized crown-6-calix[4]arene
  54. Solvent selection for chemical reactions: automated computational screening of solvents using the SMD model
  55. Infinite dilution activity coefficient from SMD calculations: accuracy and performance for predicting liquid-liquid equilibria
  56. New catalytic strategy to add fluorine to organic molecules using cheap potassium fluoride salt
  57. Cluster expansion of the solvation free energy difference: Systematic improvements in the solvation of single ions
  58. Mechanism of the Piperidine-Catalyzed Knoevenagel Condensation Reaction in Methanol: The Role of Iminium and Enolate Ions
  59. Cesium fluoride and potassium fluoride ion pair nucleophilic fluorination in protic solvent
  60. Fast Screening of Solvents for Simultaneous Extraction of Furfural, 5-Hydroxymethylfurfural and Levulinic Acid from Aqueous Solution Using SMD Solvation Free Energies
  61. CMIRS Solvation Model for Methanol: Parametrization, Testing, and Comparison with SMD, SM8, and COSMO-RS
  62. Theoretical Design and Calculation of a Crown Ether Phase-Transfer-Catalyst Scaffold for Nucleophilic Fluorination Merging Two Catalytic Concepts
  63. A comprehensive theoretical investigation of the transition states and a proposed kinetic model for the cinchoninium ion asymmetric phase-transfer catalyzed alkylation reaction
  64. BUILDING THE LIQUID-VAPOUR EQUILIBRIUM CURVE THROUGH A CUBIC EQUATION OF STATE: USE OF EXCEL FOR TEACHING PHYSICAL-CHEMISTRY
  65. Mechanism and free energy profile of base-catalyzed Knoevenagel condensation reaction
  66. How Accurate is the SMD Model for Predicting Free Energy Barriers for Nucleophilic Substitution Reactions in Polar Protic and Dipolar Aprotic Solvents?
  67. The role of ammonia oxide in the reaction of hydroxylamine with carboxylic esters
  68. Cluster-continuum quasichemical theory calculation of the lithium ion solvation in water, acetonitrile and dimethyl sulfoxide: an absolute single-ion solvation free energy scale
  69. Prediction of Phase Separation Using a Modified Regular Solution Theory and the SMD Continuum Solvation Model
  70. Performance of the SMD and SM8 models for predicting solvation free energy of neutral solutes in methanol, dimethyl sulfoxide and acetonitrile
  71. Acid-catalyzed transesterification and esterification in methanol: a theoretical cluster-continuum investigation of the mechanisms and free energy barriers
  72. Electron affinity and dipole moment of 1,2,4,5-tetraoxanes antimalarials and correlation with activity against Plasmodium falciparum
  73. Theoretical Prediction of p K a in Methanol: Testing SM8 and SMD Models for Carboxylic Acids, Phenols, and Amines
  74. Amphiphilic niobium oxyhydroxide as a hybrid catalyst for sulfur removal from fuel in a biphasic system
  75. Prediction of the pH-rate profile for dimethyl sulfide oxidation by hydrogen peroxide: The role of elusive H3 O2 + Ion
  76. Revisiting the Mechanism of Neutral Hydrolysis of Esters: Water Autoionization Mechanisms with Acid or Base Initiation Pathways
  77. Absolute Single-Ion Solvation Free Energy Scale in Methanol Determined by the Lithium Cluster-Continuum Approach
  78. Unraveling the Mechanism of the Cinchoninium Ion Asymmetric Phase-Transfer-Catalyzed Alkylation Reaction
  79. New insights on reaction pathway selectivity promoted by crown ether phase-transfer catalysis: Model ab initio calculations of nucleophilic fluorination
  80. Stability of hydroxylamine isomers in aqueous solution: Ab initio study using continuum, cluster-continuum and Shells Theory of Solvation
  81. Chemical reactions inside structured nano-environment: SN2vs. E2 reactions for the F−+ CH3CH2Cl system
  82. Dynamical Discrete/Continuum Linear Response Shells Theory of Solvation: Convergence Test for NH 4 + and OH − Ions in Water Solution Using DFT and DFTB Methods
  83. Shells theory of solvation and the long-range Born correction
  84. Intramolecular Catalysis of Phosphodiester Hydrolysis by Two Imidazoles
  85. First Solvation Shell Effects on Ionic Chemical Reactions: New Insights for Supramolecular Catalysis
  86. Jacobsen’s Catalyst Interaction with Polydimethylsiloxane/Tetraethoxysilane Network and Solvent Molecules: Theoretical Design of a New Polymeric Membrane
  87. Ab initio study of the Cl+H2S atmospheric reaction: is there a breakdown of the transition state theory?
  88. Effects of ion-pairing and hydration on the SNAr reaction of the F−with p-chlorobenzonitrile in aprotic solvents
  89. Ab Initio, Density Functional Theory, and Continuum Solvation Model Prediction of the Product Ratio in the S N 2 Reaction of NO 2 - with CH 3 CH 2 Cl and CH 3 CH 2 Br in DMSO Solution
  90. Chemoselective Nucleophilic Fluorination Induced by Selective Solvation of the S N 2 Transition State
  91. Rate acceleration of SN2 reactions through selective solvation of the transition state
  92. Regioselective organocatalysis: a theoretical prediction of the selective rate acceleration of the SN2 reaction between an acetate ion and primary alkyl chlorides in DMSO solution
  93. Design of an organocatalyst for ion–molecule SN2 reactions: A new solvent effect on the reaction rate predicted by ab initio calculations
  94. Absolute solvation free energy of Li+ and Na+ ions in dimethyl sulfoxide solution: A theoretical ab initio and cluster-continuum model study
  95. Chemisorption of SO2 on graphite surface: A theoretical ab initio and ideal lattice gas model study
  96. Ab Initio Study of the SN2 and E2 Mechanisms in the Reaction between the Cyanide Ion and Ethyl Chloride in Dimethyl Sulfoxide Solution
  97. Modeling Protic to Dipolar Aprotic Solvent Rate Acceleration and Leaving Group Effects in S N 2 Reactions:  A Theoretical Study of the Reaction of Acetate Ion with Ethyl Halides in Aqueous and Dimethyl Sulfoxide Solutions
  98. Basic hydrolysis of formamide in aqueous solution: a reliable theoretical calculation of the activation free energy using the cluster-continuum model
  99. Free Energy Profile of the Reaction between the Hydroxide Ion and Ethyl Acetate in Aqueous and Dimethyl Sulfoxide Solutions:  A Theoretical Analysis of the Changes Induced by the Solvent on the Different Reaction Pathways
  100. Ionization of Organic Acids in Dimethyl Sulfoxide Solution:  A Theoretical Ab Initio Calculation of the p K a Using a New Parametrization of the Polarizable Continuum Model
  101. Reply to comment on: ‘Thermodynamic cycles and the calculation of pKa’ [Chem. Phys. Lett. 367 (2003) 145]
  102. Ligand exchange ion–molecule reactions of simple silyl and germyl cations
  103. Thermodynamic cycles and the calculation of pKa
  104. Theoretical Calculation of p K a Using the Cluster−Continuum Model
  105. Parametrization of the PCM model for calculating solvation free energy of anions in dimethyl sulfoxide solutions
  106. Gibbs energy of solvation of organic ions in aqueous and dimethyl sulfoxide solutions
  107. Theoretical Study of the Gas-Phase Reaction of Fluoride and Chloride Ions with Methyl Formate
  108. The Cluster−Continuum Model for the Calculation of the Solvation Free Energy of Ionic Species
  109. New values for the absolute solvation free energy of univalent ions in aqueous solution
  110. On the Calculation of the Absolute Solvation Free Energy of Ionic Species:  Application of the Extrapolation Method to the Hydroxide Ion in Aqueous Solution
  111. Ab initio study of the hydroxide ion–water clusters: An accurate determination of the thermodynamic properties for the processes nH2O+OH−→HO−(H2O)n (n=1–4)
  112. Electronic spectra of the nitrile ylides: an ab initio multiconfigurational second-order quasidegenerate perturbation theory study
  113. Revisiting the reactions of nucleophiles with arenediazonium ions: dediazoniation of arenediazonium salts in aqueous and micellar solutions containing alkyl sulfates and alkanesulfonates and an ab initio analysis of the reaction pathway
  114. Singlet−Triplet Gap, and the Electronic and Vibrational Spectra of Chlorophenylcarbene:  A Combined Theoretical and Experimental Study
  115. A New Mechanism for the Reaction of Carbenes with OH Groups
  116. Ab initio conformational analysis of cyclooctane molecule
  117. Kinetics of the H2O+CCl2 reaction in gas phase and in solution by an insertion mechanism
  118. Free radical mechanism of the Cl2 addition to acetylene
  119. Absolute proton affinity and basicity of the carbenes CH2, CF2, CCl2, C(OH)2, FCOH, CPh2 and fluorenylidene
  120. Analysis of state-to-state differential cross sections in two-dimensional Xe- CO 2 scattering with long-range effects
  121. A comparison of state-to-state rotational total cross sections using two- and three-dimensional close coupled approaches
  122. Searching for the ylide structure. An ab initio study of the H2O…CCl2 complex
  123. Reaction Paths for Aqueous Decomposition of CCl 2
  124. Ab initio
  125. Quantum and classical two-dimensional analysis of rainbow structures in the Xe+ CO 2 rotational excitation at 0.2 eV collision energy and on a repulsive potential