81830-71-9Relevant academic research and scientific papers
New trinuclear, oxo-centered, basic carboxylate compounds of transition metals. 2. Synthesis and x-ray structure of V3(O)3(THF)(C6H5CO2) 6, a compound with a deviant structure
Albert Cotton,Lewis, Gregg E.,Mott, Graham N.
, p. 3127 - 3130 (2008/10/08)
The preparation and first structural characterization of a trinuclear vanadium carboxylate, namely, V3(O)3(THF)(C6H5CO2) 6, is reported. A single-crystal X-ray diffraction study has shown that the molecule contains an unusual planar V3O trimetal moiety with two distinct types of vanadium coordination spheres even though each metal atom is present in the same formal oxidation state, IV. Instead of a centered oxygen atom equivalently bonded to all three vanadium atoms, the central oxygen atom is much closer (1.626 (6) ?) to one vanadium atom, forming a vanadyl group, than to the other two (2.344 (7), 2.452 (6) ?). Each of the others forms an exo V=O double bond (average 1.575 (6) ?). There are, as usual, six bridging carboxylate groups, and the exo position of the first V atom is filled by a THF molecule (V-O = 2.186 (6) ?). The title complex forms crystals belonging to the monoclinic space group P21/n with unit cell dimensions a = 13.722 (4) ?, b = 21.443 (3) ?, c = 15.758 (2) ?, β = 93.30 (2)°, and Z = 4.
