The synthesis and X-ray structure of a phenoxide-bridged heterobimetallic anion, W(CO)5OPh(Cr(CO)3) −, and its reactivity with carbon dioxide and carbonyl sulfide
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The heterobimetallic complex, [Et4N][W(CO)5OPh(Cr(CO)3)] (1), was prepared by the reaction of [Et4N][W(CO)5CH3] and (η6C6H5OH)Cr(CO)3 in tetrahydrofuran. Complex 1 crystallizes from THF/hexane in the space group P21 with unit cell dimensions a = 7.036(2) Å, b = 11.766(4) Å, c = 15.460(4) Å, β = 94.83(2)°, V= 1275.3(7) Å3, and Dcalcd = 1.779 g cm-3 . The structure was refined to R = 0.084 and Rw = 0.091 for 1136 reflections having F > 3.0σ(Fo). Complex 1 was completely inert towards carbon dioxide, even at high pressure (900 psi), but readily reacted with carbonyl sulfide to afford the thiocarbonate derivative, [Et4N][W(CO)5SC(O)OPh(Cr(CO)3)]. © 1993.
author list (cited authors)
Darensbourg, D. J., Mueller, B. L., & Reibenspies, J. H.