Welcome to LookChem.com Sign In|Join Free

Article Doi

Synthesis, Structure and Electrochemistry of Ph2PCH2PPh2-Bridged, Heterometallic Complexes containing a (η-C5H4Me)Mn(CO)2 Fragment

DOI: 10.1039/DT9940001533

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1533 - 1548 (1994)

Update date:2022-09-26

Topics:

Authors:

Braunstein, PierreBraunstein, Pierre

Knorr, MichaelKnorr, Michael

Strampfer, MartinStrampfer, Martin

Dusausoy, YvesDusausoy, Yves

Bayeul, DanielBayeul, Daniel

et al.et al.

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1039/DT9940001533

Heterometallic complexes and clusters were prepared by using the new metallophosphine 1 obtained from and Ph2PCH2PPh2 (dppm).The dark green complexes and , which contain metal-metal bonds, have been obtained by the reaction of 1 with and <2> (cod = cycloocta-1,5-diene), respectively.Starting from , the trimetallic complex 2> was formed and a reversible Mn-Pt bond formation has been observed by variable-temperature 31P-<1H> NMR spectroscopy.Reactions of 1 with , <2> (thf = tetrahydrofuran), <2> and <2> led in high yields to complexes of the type Mn-dppm-M-dppm-Mn (M = Pt, Re, Ru or Ir) having no metal-metal interaction.With , <3-C3H4Me)(μ-Cl)>2> or (tht = tetrahydrothiophene) bimetallic complexes of the type Mn-dppm-M' (M' = Mn, Pd or Au) were obtained again with no metal-metal interaction.Another route to this type of bimetallic complexes consists of the reaction of with two-electron donor ligands such as isocyanides RNC (R = 2,6-xylyl or t-Bu), which yileded <(OC)2(η-C5H4Me)Mn(μ-dppm)Pd(CNR)Cl2>.Reaction of the isocyanide complexes with azetidine did not lead to the expected carbene complexes, instead the isocyanide ligand was substituted by azetidine, yielding <(OC)2(η-C5H4Me)Mn(μ-dppm)Pd(NHC3H6)Cl2>.The structures of the xylyl isocyanide and azetidine complexes have been determined by X-ray diffraction.Reaction of <(OC)2(η-C5H4Me)Mn(μ-dppm)AuBr> with the metalate K(CO)3(PPh3)> gave in high yield the heterotrimetallic chain complex <(OC)2 (η-C5H4Me)Mn(μ-dppm)AuFe(CO)3(PPh3)>.Reaction of 1 with trans-2(NCPh)2> afforded the cluster 2>.An electrochemical study of some of the complexes has provided evidence for possible electronic communication between the metal centres.

View More

Products guided by the article

Product name:(Mn(C5H4CH3)(CO)2(CH2(P(C6H5)2)2))PdCl(C3H4CH3)

Cas No:157742-24-0

157742-24-0

R&D Labs maybe for 157742-24-0

Relevant to this article

Hot Product