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- W2949349322 abstract "The crystal structure of the solvated complex Mn2(CO)5(dpm)2,CH2Cl3,C6H14 (where dpm = Ph2PCH2PPh2) has been determined by three-dimensional X-ray diffraction methods. The crystals are monoclinic, of space group Cc, with a 19.650(3), b 16.908(2), c 22.253(4) Ǻ and β 130.89(1)°, containing four molecules per unit cell. The structure, solved by conventional Patterson and Fourier methods, was refined by a least- squares method, using individual isotropic temperature factors, to R and Rw of 0.105 and 0.125 respectively, for 1893 independent statistically significant reflections collected by counter methods. The crystals are molecular, being composed of discrete molecules of complex and solvent. The principal feature of interest in the binuclear manganese complex is the presence of a carbonyl ligand simultaneously bonded to both manganese atoms in a manner quite different from the normal symmetrical bridging mode. This novel arrangement, which seems to involve a metal-carbonyl bond analogous to that found for many metal-olefin complexes, accounts for the anomalously low carbonyl stretching frequency observed at 1645 cm-1. The Mn-Mn distance is 2.934(6) Ǻ." @default.
- W2949349322 created "2019-06-27" @default.
- W2949349322 creator A5050582888 @default.
- W2949349322 creator A5059599021 @default.
- W2949349322 date "1975-11-04" @default.
- W2949349322 modified "2023-09-23" @default.
- W2949349322 title "ChemInform Abstract: A NOVEL CARBONYL BRIDGING MODE, THE STRUCTURE OF THE METAL CARBONYL COMPLEX (MN2(CO)5(PH2PCH2PPH2)2)" @default.
- W2949349322 cites W1986309383 @default.
- W2949349322 doi "https://doi.org/10.1002/chin.197544340" @default.
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