THE RH(PPH3)(2) AND RH(COD) FRAGMENTS AS PROBES TO COMPARE THE COORDINATING AND ELECTRONIC CHARACTERISTICS OF C-SR AND C-PPH2 IN HETERODISUBSTITUTED CARBORANE LIGANDS

Authors
TEIXIDOR F BENAKKI R VINAS C KIVEKAS R SILLANPAA R
Citation
F. Teixidor et al., THE RH(PPH3)(2) AND RH(COD) FRAGMENTS AS PROBES TO COMPARE THE COORDINATING AND ELECTRONIC CHARACTERISTICS OF C-SR AND C-PPH2 IN HETERODISUBSTITUTED CARBORANE LIGANDS, Organometallics, 17(21), 1998, pp. 4630-4633
Citations number
22
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Organometallics → ACNP
ISSN journal
02767333
Volume
17
Issue
21
Year of publication
1998
Pages
4630 - 4633
Database
ISI
SICI code
0276-7333(1998)17:21<4630:TRARFA>2.0.ZU;2-H
Abstract
Comparison of the coordinating and electronic characteristics of C-SR and C-PPh2 in [7-PPh2-8-SR-7,8-C2B9H10](-) has been achieved with the fragments ''Rh(PPh3)(2)'' and ''Rh(cod)''. The C-SR moiety has a stron g polarizing effect on the carborane cage, depleting C-PPh2 of electro nic density and shifting its position in the P-31 NMR downfield as com pared to non-thioether-containing complexes. The resolution of the str ucture of [Rh(7-PPh2-8-SR7,8-C2B9H10)(cod)] has evidenced a stronger a donation capacity of the C-SR group as compared to the C-PPh2 group.