Abstract: MATH/CHEM/COMP 2002, Dubrovnik,
June 2429, 2002

The Full NonRigid
Group Theory for
TetraaminoPlatinum(II)
Ali Reza Ashrafi^{1} and Masood Hamadanian^{2} ^{1}Department of Mathematics, Faculty of
Science, University of Kashan, Kashan, Iran ^{2}Department of Chemistry, Faculty of Science, University of Kashan, Kashan, Iran The nonrigid 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 NH_{3} groups attached to a rigid framework. We study the full nonrigid group (fNRG) of tetraamino platinum(II) with two separate symmetry groups C_{2v} and C_{4v}. 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.
