Molecular mechanics of oxoboron compounds : the development of force field and applications

D.S. Otkidach, V.V. Zernov, V.L. Melnikov, and I.V. Pletnev

International symposium CACR-96 (Computer assistance to chemical research), Book of Abstracts. p.75 (1996)

ABSTRACT. We calibrated MM parameters with respect to a number of boron compounds containing oxygen atoms; the force field is based on CHARMM "purely organic" force field. The MM calculation for 21 organoboron compounds (12 structures with three-coordinated boron, 8 structures with four-coordinated boron and a structure with both coordination numbers) and a number of inorganic compounds (the most of them include boron of both coordination numbers simultaneously) is in good agreement with experimental data. The average (RMS) root-mean-square deviation calculation-experiment (X-ray data) is 0.02 A in bond lengths, 2 deg in bond angles, and 5 deg in torsion angles. Using the force field developed, we investigated the influence of stereochemical details on the formation and stability of boronic acid complexes with organic hydroxy compounds).

Laboratory of Preconcentration