Issue 10, 1979

Reactions of molybdenum oxo-complexes with substituted hydrazines. Part 4. The preparation and structure of an anionic molybdenum oxo(diazene) complex

Abstract

The complexes [MoCl(O)(P–P)2][MoCl3O(RCON2Ph)](R = Ph, p-ClC6H4,p-MeOC6H4, or Me; P–P = Ph2PCH2CH2PPh2 or Ph2PCH[double bond, length half m-dash]CHPPh2) have been prepared by reactions of the hydrazines RCONHNHPh with [{MoCl2O(P–P)}2] or [MoCl3O(P-P)] in refluxing methanol. The crystal and molecular structure of [MoCl(O)(Ph2PCH2CH2PPh2)2][MoCl3O(p-ClC6H4CON2Ph)] has been determined by single-crystal X-ray diffraction methods. The complex crystallises in the triclinic system, space group P[1 with combining macron] with a= 14.87(1), b= 11.84(1), c= 18.37(1)Å, α= 96.1(1), β= 98.8(1), γ= 97.2(1)°, and Z= 2. The geometry of the oxo(diazene) anion is distorted octahedral with the chloride atoms in a mer configuration and the oxygen atom of the diazene ligand is trans to the oxo-function. The Mo–Cl distances are 2.410(6), 2.412(6), and 2.334(7)Å. The Mo[double bond, length half m-dash]O terminal distance is 1.620(14)Å and the bond lengths within the diazene ligand indicate considerable delocalisation.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1979, 1603-1606

Reactions of molybdenum oxo-complexes with substituted hydrazines. Part 4. The preparation and structure of an anionic molybdenum oxo(diazene) complex

M. W. Bishop, J. Chatt, J. R. Dilworth, M. B. Hursthouse and M. Motevalli, J. Chem. Soc., Dalton Trans., 1979, 1603 DOI: 10.1039/DT9790001603

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