Abstract: MATH/CHEM/COMP 2002, Dubrovnik, June 24-29, 2002



The Full Non-Rigid Group Theory for



Ali Reza Ashrafi1 and Masood Hamadanian2


1Department of Mathematics, Faculty of Science, University of Kashan, Kashan, Iran


2Department of Chemistry, Faculty of Science, University of Kashan, Kashan, Iran




The non-rigid molecule group theory (NRG) in which the dynamical symmetry operations are defined as physical operations is a new field of chemistry. Smeyers in a series of papers applied this notion to determine the character table of restricted NRG of some molecules.

In this work, a simple method is described, by means of which it is possible to calculate character tables for the symmetry group of molecules consisting of a number of NH3 groups attached to a rigid framework. We study the full non-rigid group (f-NRG) of tetraamino platinum(II) with two separate symmetry groups C2v and C4v. We prove that they are groups of order 216 and 5184 with 27 and 45 conjugacy classes, respectively. Also, we will compute the character tables of these groups.

Keywords: character table, full non-rigid group, tetraamino platinum(II)