VIBRATIONAL-SPECTRA AND STRUCTURE OF ZIRCONIUM AND HAFNIUM CYCLOPENTADIENYL HYDRIDES

Authors
KLEMENKOVA ZS LOKSHIN BV STRUNKINA LI MINACHEVA MK
Citation
Zs. Klemenkova et al., VIBRATIONAL-SPECTRA AND STRUCTURE OF ZIRCONIUM AND HAFNIUM CYCLOPENTADIENYL HYDRIDES, Russian chemical bulletin, 43(9), 1994, pp. 1516-1521
Citations number
25
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
43
Issue
9
Year of publication
1994
Pages
1516 - 1521
Database
ISI
SICI code
1066-5285(1994)43:9<1516:VASOZA>2.0.ZU;2-9
Abstract
Raman and IR spectra (4000-50 cm(-1)) of solid cyclopentadienyl zircon ium and hafnium hydrides Cp(2)MH(2), Cp(2)MD(2), Cp(2)Zr(H)X, and Cp(2 )Zr(D)X (Cp = eta(5)-C5H5; M = Zr, Hf; X = Cl, Br) have been studied. The vibrational modes of MH groups, Cp-rings, and metal-ligand bonds a re discussed and the band assignments are proposed. In the solid state , these complexes form polymers with linear hydride bridges of the M-H -M type. The force constants of the M-H and M-Cp bonds increase on goi ng from Zr to Hf.