CHEMICAL-BONDS IN METAL-HETEROCUMULENE CO MPLEXES .3. VIBRATION ANALYSIS OF THE CYANAMIDE LIGAND NCNR(2) AND THE COMPLEXES (CO)(5)MNCNR(2) (M=CR, W R=C2H5, CH3) AND DETERMINATION OF THE FORCE-FIELD OF THE COMPLEX (CO)(5)CRNCN(C2H5)(2)

Authors
OHNET MN JOUAN M MENARD G SPASOJEVICDEBIRE A DAO NQ FISCHER H REINDL D
Citation
Mn. Ohnet et al., CHEMICAL-BONDS IN METAL-HETEROCUMULENE CO MPLEXES .3. VIBRATION ANALYSIS OF THE CYANAMIDE LIGAND NCNR(2) AND THE COMPLEXES (CO)(5)MNCNR(2) (M=CR, W R=C2H5, CH3) AND DETERMINATION OF THE FORCE-FIELD OF THE COMPLEX (CO)(5)CRNCN(C2H5)(2), SPECT ACT A, 52(5), 1996, pp. 505-526
Citations number
114
Categorie Soggetti
Spectroscopy
Journal title
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY → ACNP
ISSN journal
13861425
Volume
52
Issue
5
Year of publication
1996
Pages
505 - 526
Database
ISI
SICI code
1386-1425(1996)52:5<505:CIMCM.>2.0.ZU;2-C
Abstract
A vibrational spectroscopic study of the four complexes (CO)(5)MNCNR(2 ) (M is Cr or W, and R is C2H5 or CH3) and of the two ligands diethyl- and dimethyl-cyanamide has been carried out at 295 and 77 K and an at tribution of the infrared and Raman frequencies of the two free ligand s and of the four complexes is proposed. A simplified generalized vale nce force field for the complex (CO)(5)CrNCN(C2H5)(2) has been calcula ted; it is in good agreement with these attributions.