REDUCTIVE DIMERIZATION OF PHENYL ISOCYANATE BY DIVALENT SAMARIUM COMPLEX - SYNTHESIS AND CRYSTAL-STRUCTURE OF ME)SM](2)[MU,ETA(4)-(PHN)OCCO(NPH)]CENTER-DOT-4THF (ARO = 2,6-DI-TERTBUTYL-4-METHYLPHENOXO)
Fg. Yuan et al., REDUCTIVE DIMERIZATION OF PHENYL ISOCYANATE BY DIVALENT SAMARIUM COMPLEX - SYNTHESIS AND CRYSTAL-STRUCTURE OF ME)SM](2)[MU,ETA(4)-(PHN)OCCO(NPH)]CENTER-DOT-4THF (ARO = 2,6-DI-TERTBUTYL-4-METHYLPHENOXO), Polyhedron, 17(11-12), 1998, pp. 2009-2012
The reaction of divalent (ArO)(2)Sm(THF)(3) . THF with phenyl isocyana
te directly gives a bimetallic complex [(ArO)(2)(DME)Sm](2)[mu-eta(4)-
(PhN)OCCO(NPh)]. 4THF (ArO = 2,6-di-tertbutyl-4-methylphenoxo) via one
-electron reduction and coupling reactions. In this complex, the depro
tonated N,N'-diphenyloxamide ligand bridges two units of (ArO)(2)(DME)
Sm with C(5)-C(5), Sm-N and Sm-O(1) bonds of 1.43(2), 2.549(8) and 2.
318(7) Angstrom, respectively. (C) 1998 Elsevier Science Ltd. All righ
ts reserved.