scispace - formally typeset
Journal ArticleDOI

Development and use of quantum mechanical molecular models. 76. AM1: a new general purpose quantum mechanical molecular model

Reads0
Chats0
TLDR
In this paper, a new parametric quantum mechanical molecular model, AM1 (Austin Model l), based on the NDDO approximation, is described, in which the major weaknesses of MNDO, in particular failure to reproduce hydrogen bonds, have been overcome without any increase in computing time.
Abstract
A new parametric quantum mechanical molecular model, AM1 (Austin Model l), based on the NDDO approximation, is described. In it the major weaknesses of MNDO, in particular failure to reproduce hydrogen bonds, have been overcome without any increase in computing time. Results for 167 molecules are reported. Parameters are currently available for C, H, 0, and N.

read more

Citations
More filters
Journal ArticleDOI

The structure of a novel polymeric metal: Acceptor-doped polyaniline

TL;DR: In this article, the same authors deduced key structural features of acceptor-doped polyaniline (polyemeraldine salt) from the crystal structures for the ClO 4 − and the BF 4 − dication salts of H(C 6 H 4 ǫ NH 6 H 6 H 5, radical cation salts of shorter oligomers and neutral H 5 C 6 C 6 NC 6H 4 NNH 6 H5, and showed that radical cations are
Journal ArticleDOI

Semiempirical and Raman spectroscopic studies of carotenoids.

TL;DR: Semiempirical AM1 calculations have been carried out for beta-carotene and the three xanthophylls containing oxygen functions and indicate that substitutions on the terminal rings have a minimal effect on the conformation of the chromophore.
Journal ArticleDOI

Strategies for indirect computer-aided drug design

TL;DR: This review is intended to describe some of the methods and procedures used for computer-aided drug design when the structure of the macromolecular target is unknown, as is the case for CNS active drugs.
Journal ArticleDOI

Structural aspects of flavonoids as trypsin inhibitors

TL;DR: Physiological nature of flavonoids reveals biotechnological source of new trypsin inhibitors as antipancreatitis, anticancer and anti-inflammation drugs.
Journal ArticleDOI

Free energy calculations in molecular biophysics

TL;DR: The free energy perturbation method has been widely used in conjunction with Monte Carlo or molecular dynamics simulations to calculate free energy differences between similar macromolecular systems in solution as discussed by the authors.
Related Papers (5)