Theoretical methods for the description of the solvent effect in biomolecular systems

M Orozco, FJ Luque - Chemical Reviews, 2000 - ACS Publications
The environment plays a key role in the determination of the properties and reactivity of
substances in condensed phases. The complexity of chemical phenomena in solution has …

All‐atom empirical force field for nucleic acids: I. Parameter optimization based on small molecule and condensed phase macromolecular target data

N Foloppe, AD MacKerell, Jr - Journal of computational …, 2000 - Wiley Online Library
Empirical force‐field calculations on biological molecules represent an effective method to
obtain atomic detail information on the relationship of their structure to their function. Results …

Tautomerism of 2-hydroxynaphthaldehyde Schiff bases

L Antonov, WMF Fabian, D Nedeltcheva… - Journal of the …, 2000 - pubs.rsc.org
A UV–Vis spectroscopic study based on the recently developed chemometric approach for
quantitative analysis of undefined mixtures is performed on a series of donor and acceptor …

Mechanism of SN2 Alkylation Reactions of Lithium Organocuprate Clusters with Alkyl Halides and Epoxides. Solvent Effects, BF3 Effects, and Trans-Diaxial Epoxide …

S Mori, E Nakamura, K Morokuma - Journal of the American …, 2000 - ACS Publications
The B3LYP density functional studies on the mechanism of the SN2-substitution reaction of
methyl halides and epoxides with lithium organocuprates (I),(CH3) 2CuLi⊙ LiCl and [(CH3) …

Stereoselective 1, 3-dipolar cycloadditions of a chiral nitrone derived from erythrulose. An experimental and DFT theoretical study

M Carda, R Portoles, J Murga, S Uriel… - The Journal of …, 2000 - ACS Publications
We have investigated several 1, 3-dipolar cycloadditions of a chiral nitrone prepared from l-
erythrulose. While cycloadditions to carbon− carbon multiple bonds of dipolarophiles such …

Theoretical study of the addition of hydrogen cyanide to methanimine in the gas phase and in aqueous solution

R Arnaud, C Adamo, M Cossi, A Milet… - Journal of the …, 2000 - ACS Publications
We have performed a detailed study of the title reaction, which is the key step of one of the
most realistic processes suggested for the prebiotic synthesis of amino acids. From a …

Theoretical Study of 1, 3‐Dipolar Cycloaddition Reactions with Inverse Electron Demand− A DFT Study of the Lewis Acid Catalyst and Solvent Effects in the Reaction …

LR Domingo - European Journal of Organic Chemistry, 2000 - Wiley Online Library
The molecular mechanism for the inverse electron demand 1, 3‐dipolar cycloaddition of
nitrones with vinyl ethers has been characterized using density functional theory methods …

Tautomerism of heterocycles: five-membered rings with one heteroatom

W Friedrichsen, T Traulsen, J Elguero… - Advances in Heterocyclic …, 2000 - Elsevier
Great progress has been made in the experimental and theoretical investigation of
tautomerism of five-membered ring systems since 1975, and a number of reviews dealing …

Quantum mechanical conformational analysis of β-alanine zwitterion in aqueous solution

PA Nielsen, PO Norrby, T Liljefors… - Journal of the …, 2000 - ACS Publications
The conformational behavior of β-alanine zwitterion in aqueous solution has been
investigated by post-Hartree− Fock and density functional methods using the polarizable …

Structure of a Transient Neutral Histidine Radical in Solution:  EPR Continuous-Flow Studies in a Ti3+/EDTA−Fenton System and Density Functional Calculations

G Lassmann, LA Eriksson, F Lendzian… - The Journal of Physical …, 2000 - ACS Publications
Oxidation of histidine by OH* radicals has been studied at room temperature over a large
range of pH values in a Ti3+/EDTA/H2O2− Fenton system using a special EPR continuous …