SYNTHESIS AND CHARACTERIZATION OF BIMETALLIC RUTHENIUM COMPLEXES BRIDGED WITH C5H AND RELATED LIGANDS

Citation
Hp. Xia et al., SYNTHESIS AND CHARACTERIZATION OF BIMETALLIC RUTHENIUM COMPLEXES BRIDGED WITH C5H AND RELATED LIGANDS, Organometallics, 16(13), 1997, pp. 2940-2947
Citations number
100
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
ISSN journal
0276-7333
Volume
16
Issue
13
Year of publication
1997
Pages
2940 - 2947
Database
ISI
SICI code
0276-7333(1997)16:13<2940:SACOBR>2.0.ZU;2-S
Abstract
Treatment of [(eta(5)-C5R5)Ru(L)(2)]BF4 (R = Me, (L)(2) = dppe; R = H, (L)(2) = (PPh3)(2)) with 0.45 equiv of HC=CCH(OH)C=CH led to the form ation of the C5H2-bridged compounds L)(2)Ru=C=C=CHCH=C=Ru(L)(2)(eta(5) -C5R5)](BF4)(2). The C5H2-bridged compounds reacted with alumina to gi ve the C5H-bridged compounds -C5R5)(L)(2)Ru=C=C=CHC=CRu(L)(2)(eta(5)-C 5R5)]BF4. The structure of the C5H-bridged complex [Cp(PPh3)(2)Ru=C=C= CHC=CRu(PPh3)(2)Cp]BPh4 has been confirmed by X-ray diffraction and sh ows the bridging C5H ligand to be symmetric with a delocalized st-syst em. Reaction of )-C5R5)(L)(2)Ru=C=C=CHC=CRu(L)(2)(eta(5)-C5R5)]BF4 wit h acetone in the presence of KOH or KOBut produced R5)(L)(2)RuC=CCH(CH 2COMe)C=CRu(L)(2)(eta(5)-C5R5).