Front Cover
A study of electrostatic potential can provide useful guidelines for investigating weak molecular clusters. A variety of models incorporating electrostatics as a principle ingredient have been developed for probing such complexes. The cover page shows a cluster of six water molecules networked by OH...O hydrogen bond. Isosurfaces of MESP values ‘X=–105’ and ’Y=1050’ kJ mol–1 are superposed on the corresponding ball and stick model in order to bring out the complementary lock-and-key arrangement.

Back Cover

Sewall Wright
( 1889 – 1988 )
( Illustration by Prema Iyer )