Chemical and structural relationships among the oligomeric compounds MFe(CO)4 (M = Zn, Cd, Hg), PbFe(CO)4, AgCo(CO)4, and their base adducts

Richard D. Ernst, Tobin J Marks

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32 Citations (Scopus)


The synthesis and characterization of the following new metal-metal bonded complexes are reported: (py)3ZnFe(CO)4, (NH3)(2,2′-bpy)ZnFe(CO)4, (2,2′:6′,2″-tpy)CdFe(CO)4, (2,2′,2″-tren)CdFe(CO)4, (2,2′-bpy)ZnFe(CO)4, (4,4′-bpy)-CdFe(CO)4, and (4-C6H5C5H4N)CdFe(CO)4. Proper ligational strategy thus allows the isolation of several types of compounds which differ from the previously known B2CdFe(CO)4 and (NH3)3ZnFe(CO)4 patterns. It is also possible to manipulate the degree of association of these species by control of the group 2B metal ion coordination sphere. Thus the first four of the new compounds listed are tentatively assigned monomeric structures, while the latter three are assigned oligomeric structures. The present studies also reveal that AgCo(CO)4 is isomorphous with [CdFe(CO)4]4 and that (py)2CdFe(CO)4 exists as a trimer in the solid state. The complex (2,2′-bpy)AgCo(CO)4 is found to be at most partly associated in noncoordinating solvents. In the solid state, PbFe(CO)4 is associated.

Original languageEnglish
Pages (from-to)1477-1484
Number of pages8
JournalInorganic Chemistry
Issue number6
Publication statusPublished - 1978

ASJC Scopus subject areas

  • Inorganic Chemistry

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