Journal
COMPUTER PHYSICS COMMUNICATIONS
Volume 215, Issue -, Pages 156-164Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cpc.2017.01.019
Keywords
Molecular symmetry; Vector algebra; Symmetrization; Framework group
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Symmetry is a useful concept in physics and chemistry. It can be used to find out some simple properties of a molecule or simplify complex calculations. In this paper a simple vector algebraic method is described to determine all symmetry elements of an arbitrary molecule. To carry out the symmetry analysis, a program has been written, which is also capable of generating the framework group of the molecule, revealing the symmetry properties of normal modes of vibration and symmetrizing the structure. To demonstrate the capabilities of the program, it is compared to other common widely used stand-alone symmetry analyzer (SYMMOL, Symmetrizer) and molecular modeling (NWChem, ORCA, MRCC) software. SYVA can generate input files for molecular modeling programs, e.g. Gaussian, using precisely symmetrized molecular structures. Possible applications are also demonstrated by integrating SYVA with the GAMESS and MRCC software. (C) 2017 Elsevier B.V. All rights reserved.
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