13964-88-0Relevant articles and documents
Gladyshev, E. N.,Tatarnikov, A. N.,Abakumov, G. A.
, (1987)
Studies in the chemistry of bonds between metals. I. The synthesis of transition metal carbonyl derivatives of zinc and cadmium by a metal-exchange reaction
Burlitch, James M.,Ferrari, Alvaro
, p. 563 - 569 (2008/10/08)
The metal-exchange reactions of a number of transition metal carbonyl derivatives of mercury of the m2Hg type (m = Co(CO)4, Fe(CO)2C5H5, Cr(CO)3C5H5, Mo(CO)3C5H5, and W(CO)3C5H5) and the mixed-metal compound C5H5Fe(CO)2HgCo(CO)4 with zinc and cadmium have been shown to be convenient synthetic routes to the novel zinc and cadmium analogs, m2Zn and m2Cd, and C5H5Fe(CO)2ZnCo(CO)4. A polar solvent such as THF was required to promote the exchange in the case of the molybednum and tungsten derivatives. The conversion of Hg[Mn(CO)5]2 to Zn[Mn(CO)5]2 occurred in diglyme at 120°. The similarity of the infrared spectra of the new zinc and cadmium compounds with those of the well-studied mercury analogs indicated that all of the compounds contain linear arrangements of covalently bonded metal atoms. Comparison of the Mo?ssbauer parameters with the infrared data for the M[Fe(CO)2C5H5]2 series (M = Zn, Cd, Hg) suggested that both σ and π bonding are important in the metal-metal interactions. Mass spectra, reported for the M[Co(CO)4]2 and M[Cr(CO)3C5H5]2 series, gave a qualitative indication that the metal-metal bond strengths decrease in the order Zn > Cd > Hg. Detailed preparations for the mercury derivatives are described in the Experimental Section.