201345-29-1Relevant academic research and scientific papers
The structural characterization of Re2Cl4(μ-dcpm)2 (dcpm = Cy2PCH2PCy2) and a new crystallographic form of Re2Cl4(μ-dppm)2 (dppm = Ph2PCH2PPh2)
Bera, Jitendra K.,Fanwick, Phillip E.,A. Walton, Richard
, p. 138 - 142 (2008/10/08)
The single crystal X-ray structures of the triply bonded complexes Re2Cl4(μ-dcpm)2 (1) (dcpm = Cy2PCH2PCy2) and a new crystal form of Re2Cl4(μ-dppm)2 (2) (dppm = Ph2PCH2PPh2) have been determined and are compared with literature data for other complexes of this type. Complexes 1 and 2 both possess staggered rotational geometries. Complex 1 has Re-Re distances of 2.2256(4) and 2.2267(4) A? for two crystallographically independent molecules. Complex 2 also has two independent molecules in the asymmetric unit, one of which is normal with Re-Re = 2.2497(4) A?, whereas the other exhibits a twofold orientational disorder for the Re-Re unit (distances 2.2368(5) A? and 2.231(4) A? for the major (90%) and minor (10%) forms respectively).
