2 ISOMERIC STRUCTURES OF HYDRIDORUTHENIUM COMPLEXES SUPPORTED BY HYDROTRISPYRAZOLYLBORATES, TP(R)RU(H)(1,5-CYCLOOCTADIENE) - AN OCTAHEDRAL STRUCTURE WITH ADDITIONAL 3-CENTER-2-ELECTRON RU-H-B INTERACTION IS MORE STABLE THAN A SQUARE-PYRAMIDAL STRUCTURE WITH A KAPPA(2)-TP(R) LIGAND

Authors
TAKAHASHI Y AKITA M HIKICHI S MOROOKA Y
Citation
Y. Takahashi et al., 2 ISOMERIC STRUCTURES OF HYDRIDORUTHENIUM COMPLEXES SUPPORTED BY HYDROTRISPYRAZOLYLBORATES, TP(R)RU(H)(1,5-CYCLOOCTADIENE) - AN OCTAHEDRAL STRUCTURE WITH ADDITIONAL 3-CENTER-2-ELECTRON RU-H-B INTERACTION IS MORE STABLE THAN A SQUARE-PYRAMIDAL STRUCTURE WITH A KAPPA(2)-TP(R) LIGAND, Organometallics, 17(22), 1998, pp. 4884-4888
Citations number
27
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Organometallics → ACNP
ISSN journal
02767333
Volume
17
Issue
22
Year of publication
1998
Pages
4884 - 4888
Database
ISI
SICI code
0276-7333(1998)17:22<4884:2ISOHC>2.0.ZU;2-U
Abstract
Hydrido-cod-ruthenium complexes containing hydrotris(3, 5-diisopropylp yrazolyl)borate (Tp(iPr)) and its 4-brominated derivative (Tp(iPrBr)), Tp(R)Ru(H)(cod), are reported. Spectroscopic and crystallographic ana lyses reveal the presence of two isomeric structures, a square-pyramid al structure with a kappa(2)-Tp(R) ligand and an octahedral structure with an additional 3-center-2-electron Ru-H-B interaction, and isomeri zation from the former structure to the latter structure is observed f or the first time by means of H-1 NMR analyses.