Isomers of P2S2

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Abstract

To help future structural characterization of gaseous P2S2 by experimental techniques, accurate relative energies, geometries, rotational, and quartic centrifugal distortion constants, dipole moments, harmonic vibrational frequencies, infrared intensities, and vertical ionization energies have been determined from ab initio calculations for several isomers of P2S2. There are at least five minima identified on the lowest singlet potential energy surface of P2S2. The energy results obtained indicate that a PP-bridged bicyclic (butterfly-type) isomer of C2v symmetry corresponds to the global minimum, while the planar cyclic 4-membered isomers of D2h and C2v symmetries are the second and third most stable isomers, respectively.

Original languageEnglish
Pages (from-to)201-207
Number of pages7
JournalJournal of Physical Chemistry A
Volume101
Issue number2
DOIs
Publication statusPublished - Jan 9 1997

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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