On the Symmetry of a Zig-Zag and an Armchair Polyhex Carbon Nanotorus
Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan, I. R. Iran * Author to whom correspondence should be addressed: E-mail: Ashrafi@kashanu.ac.ir Received: 17 July 2009; in revised form: 13 September 2009 / Accepted: 14 September 2009 / Published: 8 October 2009 Abstract: A Euclidean graph associated with a molecule is defined by a weighted graph with adjacency matrix M = [d
Full Non‐Rigid Group and Symmetry of Dimethyltrichloro‐phosphorus
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. The full non-rigid group (f-NRG) of dimethyltrichlorophosphorus with the symmetry group D3h was studied. It has been proven that it is a group of order 216 with 27 conjugacy classes and its character table computed. Finally, the Permutation-lnversion group of this molecule was calculated.
Report of a Working Group of the International Union of Crystallography Commission on Crystallographic Nomenclature
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