Tautomeric equilibria in relation to pi-electron delocalization

ED Raczyńska, W Kosińska, B Ośmiałowski… - Chemical …, 2005‏ - ACS Publications
Tautomerism, a particular case of isomerism, plays an important role in modern organic
chemistry, biochemistry, medicinal chemistry, pharmacology, molecular biology, and life …

GLYCAM06: a generalizable biomolecular force field. Carbohydrates

KN Kirschner, AB Yongye… - Journal of …, 2008‏ - Wiley Online Library
A new derivation of the GLYCAM06 force field, which removes its previous specificity for
carbohydrates, and its dependency on the AMBER force field and parameters, is presented …

“Amide resonance” correlates with a breadth of C− N rotation barriers

CR Kemnitz, MJ Loewen - Journal of the American Chemical …, 2007‏ - ACS Publications
Complete basis set calculations (CBS-QB3) were used to compute the CN rotation barriers
for acetamide and eight related compounds, including acetamide enolate and O-protonated …

Systematic quantum chemical study of DNA‐base tautomers

M Piacenza, S Grimme - Journal of Computational Chemistry, 2004‏ - Wiley Online Library
The relative energies of the energetically low‐lying tautomers of pyridone, cytosine, uracil,
thymine, guanine, and iso‐cytosine are studied by a variety of different quantum chemical …

Water-promoted hydrolysis of a highly twisted amide: Rate acceleration caused by the twist of the amide bond

JI Mujika, JM Mercero, X Lopez - Journal of the American …, 2005‏ - ACS Publications
The water-promoted hydrolysis of a highly twisted amide is studied using density functional
theory in conjunction with a continuum dielectric method to introduce bulk solvent effects …

[کتاب][B] Equilibrium molecular structures: from spectroscopy to quantum chemistry

J Demaison, JE Boggs, AG Császár - 2016‏ - books.google.com
Balancing quantum theory with practical experiments, this book focuses on the theory
involved in determining and converting measured and computed data sets into accurate and …

The realization of sub-nanosecond pump and probe experiments at the ESRF

M Wulff, A Plech, L Eybert, R Randler, F Schotte… - Faraday …, 2003‏ - pubs.rsc.org
We present beamline ID09B that is designed for pump and probe experiments to 50 ps time-
resolution. The beamline has been refurbished with a narrow-bandwidth undulator for Laue …

Relative stabilities of three low-energy tautomers of cytosine: a coupled cluster electron correlation study

G Fogarasi - The Journal of Physical Chemistry A, 2002‏ - ACS Publications
High-level quantum chemical calculations have been carried out in an effort to reinvestigate
the relative stabilities of the three lowest-lying tautomers of cytosine. Geometries were …

Geometrical optimization for strictly localized structures

Y Mo - The Journal of chemical physics, 2003‏ - pubs.aip.org
Recently we proposed the block localized wavefunction (BLW) approach which takes the
advantages of valence bond theory and molecular orbital theory and defines the …

Resonance structures of the amide bond: The advantages of planarity

JI Mujika, JM Matxain, LA Eriksson… - Chemistry–A European …, 2006‏ - Wiley Online Library
Delocalization indexes based on magnitudes derived from electron‐pair densities are
demonstrated to be useful indicators of electron resonance in amides. These indexes, based …