The reaction of the unsaturated anion [Re3(mu-H)4(CO)9(NCMe)]- with cyclohexylisocyanide gives the novel unsaturated anion [Re3(mu-H)4(CO)9(CNC6H11)]-. By reaction of this species with dimethylphenylphosphine a saturated compound is obtained, [Re3(mu-H)3(CO)9(mu-eta-2-C(H) = NC6H11)-(PMe2Ph)]-, containing a bridging formimidoyl ligand, Two isomers of this anion have been identified and the structure of one of them has been elucidated by X-ray analysis. The anion contains an isosceles triangle of Re atoms with two longer hydrogen-bridged edges [mean 3.255 angstrom] and one shorter edge [3.164(1) angstrom], doubly bridged by the formimidoyl ligand and the third hydride. The phosphine ligand is coordinated in the axial direction with respect to the Re3 plane, with a Re-P bond length of 2.454(7) angstrom.

Beringhelli, T., Dalfonso, G., Freni, M., Ciani, G., Moret, M., Sironi, A. (1990). COORDINATION AND REDUCTION OF ISOCYANIDE LIGANDS IN HYDRIDO-CARBONYL RHENIUM CLUSTER CHEMISTRY - SYNTHESIS AND CHARACTERIZATION OF THE ANION [RE3(MU-H)4(CO)9(CNR)]- AND OF THE FORMIMIDOYL DERIVATIVE [RE3(MU-H)3(CO)9(MU-ETA-2-C(H)=NC6H11)(PME2PH)]-. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 399(3), 291-299 [10.1016/0022-328X(90)85493-I].

COORDINATION AND REDUCTION OF ISOCYANIDE LIGANDS IN HYDRIDO-CARBONYL RHENIUM CLUSTER CHEMISTRY - SYNTHESIS AND CHARACTERIZATION OF THE ANION [RE3(MU-H)4(CO)9(CNR)]- AND OF THE FORMIMIDOYL DERIVATIVE [RE3(MU-H)3(CO)9(MU-ETA-2-C(H)=NC6H11)(PME2PH)]-

MORET, MASSIMO;
1990

Abstract

The reaction of the unsaturated anion [Re3(mu-H)4(CO)9(NCMe)]- with cyclohexylisocyanide gives the novel unsaturated anion [Re3(mu-H)4(CO)9(CNC6H11)]-. By reaction of this species with dimethylphenylphosphine a saturated compound is obtained, [Re3(mu-H)3(CO)9(mu-eta-2-C(H) = NC6H11)-(PMe2Ph)]-, containing a bridging formimidoyl ligand, Two isomers of this anion have been identified and the structure of one of them has been elucidated by X-ray analysis. The anion contains an isosceles triangle of Re atoms with two longer hydrogen-bridged edges [mean 3.255 angstrom] and one shorter edge [3.164(1) angstrom], doubly bridged by the formimidoyl ligand and the third hydride. The phosphine ligand is coordinated in the axial direction with respect to the Re3 plane, with a Re-P bond length of 2.454(7) angstrom.
Articolo in rivista - Articolo scientifico
X-RAY CHARACTERIZATION; CRYSTAL-STRUCTURE; HYDROGENATION; COMPLEXES; INSERTION; MOLECULES; DONOR
English
1990
399
3
291
299
none
Beringhelli, T., Dalfonso, G., Freni, M., Ciani, G., Moret, M., Sironi, A. (1990). COORDINATION AND REDUCTION OF ISOCYANIDE LIGANDS IN HYDRIDO-CARBONYL RHENIUM CLUSTER CHEMISTRY - SYNTHESIS AND CHARACTERIZATION OF THE ANION [RE3(MU-H)4(CO)9(CNR)]- AND OF THE FORMIMIDOYL DERIVATIVE [RE3(MU-H)3(CO)9(MU-ETA-2-C(H)=NC6H11)(PME2PH)]-. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 399(3), 291-299 [10.1016/0022-328X(90)85493-I].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/32949
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