1313516-08-3Relevant academic research and scientific papers
Hybrid dibismuthines and distibines as ligands towards transition metal carbonyls
Benjamin, Sophie L.,Levason, William,Reid, Gillian,Rogers, Michael C.
, p. 6565 - 6574 (2011)
The hybrid dibismuthines O(CH2CH2BiPh 2)2 and MeN(CH2-2-C6H 4BiPh2)2 react with [M(CO)5(thf)] (M = Cr or W) to form [{M(CO)5}2{O(CH2CH 2BiPh2)2}] and [{Cr(CO)5} 2{MeN(CH2-2-C6H4BiPh 2)2}] containing bridging bidentate (Bi2) coordination. The unsymmetrical tertiary bismuthine complexes [M(CO) 5{BiPh2(o-C6H4OMe)}] are also described. Depending upon the molar ratio, the hybrid distibines O(CH 2CH2SbMe2)2 and MeN(CH 2-2-C6H4SbMe2)2 react with [M(CO)5(thf)] to give the pentacarbonyl complexes [{M(CO) 5}2{O(CH2CH2SbMe2) 2}] and [{Cr(CO)5}2{MeN(CH2-2-C 6H4SbMe2)2}] or tetracarbonyls cis-[M(CO)4{O(CH2CH2SbMe2) 2}] and cis-[M(CO)4{MeN(CH2-2-C 6H4SbMe2)2}]. The latter can also be obtained from [Cr(CO)4(nbd)] or [W(CO)4(pip) 2], and contain chelating bidentates (Sb2-coordinated) as determined crystallographically. S(CH2-2-C6H 4SbMe2)2 coordinates as a tridentate (SSb 2) in fac-[M(CO)3{S(CH2-2-C6H 4SbMe2)2}] (M = Cr or Mo) and fac-[Mn(CO) 3{S(CH2-2-C6H4SbMe2) 2}][CF3SO3]. Fac-[Mn(CO) 3{MeN(CH2-2-C6H4SbMe 2)2}][CF3SO3] contains NSb 2-coordinated ligand in the solid state, but in solution a second species, Sb2-coordinated and with a κ1-CF 3SO3 replacing the coordinated amine is also evident. X-ray crystal structures were also determined for fac-[Cr(CO) 3{S(CH2-2-C6H4SbMe2) 2}], fac-[Mn(CO)3{S(CH2-2-C6H 4SbMe2)2}][CF3SO3] and fac-[Mn(CO)3{MeN(CH2-2-C6H4SbMe 2)2}] [CF3SO3]. Hypervalent N...Sb interactions are present in cis-[M(CO)4{MeN(CH 2-2-C6H4SbMe2)2}] (M = Mo or W), but absent for M = Cr.
