On the road from formamide ices to nucleobases: IR-spectroscopic observation of a direct reaction between cyano radicals and formamide in a high-energy impact …

M Ferus, S Civis, A Mládek, J Sponer… - Journal of the …, 2012 - ACS Publications
The formamide-based synthesis of nucleic acids is considered as a nonaqueous scenario
for the emergence of biomolecules from inorganic matter. In the current study, we scrutinized …

Structural organization in aqueous solutions of 1-butyl-3-methylimidazolium halides: a high-pressure infrared spectroscopic study on ionic liquids

HC Chang, JC Jiang, CY Chang, JC Su… - The Journal of …, 2008 - ACS Publications
High-pressure infrared spectroscopy was applied to study the hydrogen-bonding structures
of 1-butyl-3-methylimidazolium halides/D2O mixtures. No drastic changes were observed in …

Formamide dimers: A computational and matrix isolation study

A Mardyukov, E Sánchez-Garcia… - The Journal of …, 2007 - ACS Publications
The dimerization of formamide (FMA) has been investigated by matrix isolation
spectroscopy, static ab initio calculations, and ab initio molecular dynamics (AIMD) …

Explicit polarization (X-Pol) potential using ab initio molecular orbital theory and density functional theory

L Song, J Han, Y Lin, W Xie, J Gao - The Journal of Physical …, 2009 - ACS Publications
The explicit polarization (X-Pol) method has been examined using ab initio molecular orbital
theory and density functional theory. The X-Pol potential was designed to provide a novel …

Isolating the spectral signature of H 3 O+ in the smallest droplet of dissociated HCl acid

JS Mancini, JM Bowman - Physical Chemistry Chemical Physics, 2015 - pubs.rsc.org
The centrally important role of acids in aqueous chemistry has stimulated the search for the
smallest droplet of hydrochloric acid. Based on several independent quantum calculations …

Characterizing the mechanism of the double proton transfer in the formamide dimer

JC Hargis, E Vöhringer-Martinez… - The Journal of …, 2011 - ACS Publications
The double proton transfer in the formamide dimer is characterized computationally by
combining density functional theory and ab initio methods. The intrinsic reaction coordinate …

Theoretical calculations: Can Gibbs free energy for intermolecular complexes be predicted efficiently and accurately?

O Isayev, L Gorb, J Leszczynski - Journal of computational …, 2007 - Wiley Online Library
The theoretical study has been performed to refine the procedure for calculations of Gibbs
free energy with a relative accuracy of less than 1 kcal/mol. Three benchmark intermolecular …

Inter-and intramolecular vibrational energy flow in a formamide–water complex

HK Shin - The Journal of Physical Chemistry A, 2020 - ACS Publications
The role of hydrogen bonds in energy redistribution in the cyclic structure of a formamide–
water complex has been studied with semiclassical formulations of energy transfer …

Hydrogen bonding in the urea dimers and adenine–thymine DNA base pair: anharmonic effects in the intermolecular H-bond and intramolecular H-stretching …

A Bende - Theoretical Chemistry Accounts, 2010 - Springer
The equilibrium structures, binding energies, vibrational harmonic frequencies, and the
anharmonic corrections for two different (cyclic and asymmetric) urea dimers and for the …

SCF theory of intermolecular interactions without basis set superposition error

I Mayer, Á Vibök - Chemical physics letters, 1987 - Elsevier
Abstract Special SCF LCAO MO type equations are derived, permitting “supermolecule”
calculations for intermolecular interactions, excluding basis set superposition error (BSSE) …