Premium
Raman and IR spectra of matrix isolated OsO 3 F 2 AND OsO 4 : The molecular shape of monomeric OsO 3 F 2
Author(s) -
Beattle I. R.,
Blayden H. E.,
Crocombe R. A.,
Jones P. J.,
Ogden J. S.
Publication year - 1976
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250040313
Subject(s) - raman spectroscopy , argon , matrix (chemical analysis) , spectral line , analytical chemistry (journal) , chemistry , infrared spectroscopy , crystallography , monomer , matrix isolation , physics , polymer , optics , organic chemistry , chromatography , astronomy
This paper reports fundamental vibration frequencies for molecular OsO 3 F 2 and OsO 4 isolated in argon matrices at low temperatures. OsO 3 F 2 is shown to have D 3 h symmetry on the basis of Raman and IR selection rules, and this conclusion is confirmed by the results of 18 O enrichment studies which demonstrate the presence of an OsO 3 unit containing three equivalent oxygens. The argon matrix frequencies are 946.5 ( A ′ 1 ), 928.5 ( E ′), 646 ( A ′ 2 ), 619 ( A ′/ 1 ) 348 ( E ″), 316.5 ( E ′) 258 ( A ″ 2 ) and 206 ( E ′) cm −1 . High resolution spectra are also reported for matrix isolated Os 16 O 4 (ν 1 963, ν 2 332, ν 3 956, and ν 4 327 cm −1 ) and for 18 O enriched OsO 4 species.