Linear Chain Compounds of Molybdenum(II) Acetate Linked by Pyrazine, 4,4′-Bipyridine, and 1,4-Diazabicyclo[2.2.2]octane

Abstract
A series of linear-chain complexes of molybdenum(II) acetate linked by bidentate bridging ligands, [Mo-2(O2CCH3)(4)L](n) (L=pyrazine (pyz), 4,4'-bipyridine (4,4'-bpy), and 1,4-diazabicyclo[2.2,2]octane (dabco)), have been prepared, and their crystal structures determined by an X-ray diffraction method. It has been shown that the relatively weak coordinations of the bridging ligands at the axial positions of Mo-2(O2CCH3)4 (Mo-N=2.619 (8)-2.658(6) Angstrom) can effectively control the arrangement of the dimer units to give chain structures with good linearities. No significant interactions between the dimer units have been observed.

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