THE COMPETITION FOR RUTHENIUM(II) BETWEEN PHOSPHORUS(III) AND NITROGEN(III) BINDING-SITES IN 2-CYANOETHYLDIPHENYLPHOSPHINE

Authors
CAETANO W ALVES JJF NETO BSL FRANCO DW
Citation
W. Caetano et al., THE COMPETITION FOR RUTHENIUM(II) BETWEEN PHOSPHORUS(III) AND NITROGEN(III) BINDING-SITES IN 2-CYANOETHYLDIPHENYLPHOSPHINE, Polyhedron, 14(10), 1995, pp. 1295-1298
Citations number
24
Categorie Soggetti
Chemistry Inorganic & Nuclear",Crystallography
Journal title
Polyhedron → ACNP
ISSN journal
02775387
Volume
14
Issue
10
Year of publication
1995
Pages
1295 - 1298
Database
ISI
SICI code
0277-5387(1995)14:10<1295:TCFRBP>2.0.ZU;2-6
Abstract
FTIR, P-31 NMR and Ru-III/Ru(II)E degrees' (+0.20+/-0.10 V vs ECS) dat a strongly suggest that the ligand 2-cyanoethyldiphenylphosphine (2-CE DP) is bound to Ru-II by the cyano group, while the P-III site remains uncoordinated. The stability of [Ru(NH3)(5) (2-CEDP)](2+) in aqueous medium has been studied and the binuclear complex ion [Ru(NH3)(5) 2-CE DP)Ru(NH3)(5)](2+) was formed by reacting [Ru(NH3)(5)(H2O)](2+) with t he [Ru(NH3)(5) (2-CEDP)](2+) species, k(1) = 1.7 x 10(-1) M(-1) s(-1) (mu = 0.10 M, NaCF3COO/CF3COOH; C-H+ = 1.0 X 10(-3) M, CF3COOH).