97042-90-5Relevant academic research and scientific papers
REACTIONS OF METAL CARBONYL CLUSTER COMPLEXES WITH MULTIDENTATE PHOSPHINE LIGANDS; PREPARATION OF BIS(DIPHENYLPHOSPHINO)METHANE DERIVATIVES OF THE TRINUCLEAR COMPLEXES M3(CO)12 (M = Fe, Ru AND Os) AND THE X-RAY CRYSTAL STRUCTURE OF Os3(CO)9(μ-dppm)(Η
Cartwright, Simon,Clucas, Jennifer A.,Dawson, Richard H.,Foster, Douglas F.,Harding, Marjorie M.,Smith, Anthony K.
, p. 403 - 412 (2007/10/02)
The reaction of bis(diphenylphosphino)methane (dppm) with Fe3(CO)12 gave the known complexes Fe(CO)4(dppm), Fe2(CO7(dppm), in addition to Fe2(CO)5-(dppm)2.Two new dppm derivatives of Ru3(CO)12, Ru3(CO)9(μ-dppm)(η1-dppm) and Ru3(CO)6(dppm)3 have
Kinetics of reaction of bis(diphenylphosphino)methane with dodecacarbonyltriruthenium
Ambwani, Bimla,Chawla, Sudhir,Po?, Anthony
, p. 2635 - 2638 (2008/10/08)
Reaction of dppm (Ph2PCH2PPh2) with Ru3(CO)12 proceeds via the complexes Ru3(CO)10(μ-dppm) and Ru3(CO)9(μ-dppm)(η1-dppm) to form the very stable Ru3(CO)8(μ-dppm)2, and the kinetics of the three reactions in benzene have been followed. Reaction with Ru3(CO)12 proceeds mainly by a ligand-dependent path, and dppm is about twice as nucleophilic as PPh3 toward this cluster. Ru3(CO)10(μ-dppm) reacts with dppm to form Ru3(CO)9(μ-dppm)(η1-dppm) by two paths. The main path (ca. 80%) follows kinetics characteristic of a reversible CO dissociative path. The minor path is completely inhibited by CO, even at high [dppm], and may involve dissociation of CO from an already substituted Ru atom before transfer of the unsaturation to the Ru(CO)4 moiety. The bridge formation reaction undergone by Ru3(CO)9(μ-dppm)(η1-dppm) to give the final product also occurs via two paths, but in this case they are of approximately equal importance. One is not affected by CO and is assigned to dissociative loss of CO from a bridged Ru atom, formation of the second bridge following very rapidly. The other may involve reversible loss of CO from the Ru(CO)3(η1-dppm) moiety followed by transfer of the unsaturation to one of the other Ru atoms.
