Molecular design of a crystal surface

PHYS 440

Marija L Mihajlovic, Faculty of Physical Chemistry, University of Belgrade, Studentski Trg 12-16, Belgrade, 11000, Yugoslavia and Petar M Mitrasinovic, petar.mitrasinovic@cms.bg.ac.yu, Department of Information Technologies and Artificial Intelligence, Center for Multidisciplinary Studies, University of Belgrade, Kneza Viseslava 1, Belgrade, 11030, Yugoslavia.
Keeping in mind that various electrostatic contacts within a crystal play a key role in the structure–function relationship, the minimum energy procedure taking into account only Van der Waals interactions is elucidated by performing both full and rigid-body optimizations of the packing of a simple crystal, which is in the form of two helices. Many structural aspects of the optimized molecular geometry are explored and related to dipole moment, a chemical descriptor arising directly from the electron density distribution. The Van der Waals molecular volumes and areas are computed by means of contemporary methods of molecular design.