Differing coordination environments in transition metal derivatives of 1,8-bis(silylamido)naphthalene ligands.
Differing coordination environments in transition metal derivatives of 1,8-bis(silylamido)naphthalene ligands.
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1,8-双(甲硅烷基酰胺基)萘配体的过渡金属衍生物中的不同配位环境。
DOI:
10.1021/ic901745v
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发表时间:
2009
影响因子:
4.6
通讯作者:
Blake AJ
中科院分区:
文献类型:
--
作者:
Blake AJ
Four low-coordinate transition metal amido complexes featuring sterically demanding 1,8-bis(silylamido)naphthalene ligands are reported. Reaction of one molar equivalent of 1,8-C10H6(NLiSiMe3)2with ZnCl2yields the structurally authenticated dimer [1,8-C10H6(NSiMe3)2Zn]2(1), where the 1,8-bis(silylamido)naphthalene moiety is acting as both a chelating and bridging ligand. The effect on the resulting transition metal complexes of increasing the steric demands of the ligand was investigated, using the triisopropylsilyl-substituted ligand 1,8-C10H6(NSiiPr3)2. Reaction of one molar equivalent of 1,8-C10H6(NLiSiiPr3)2with ZnCl2or FeCl2(THF)1.5yields 1,8-C10H6(NSiiPr3)2M(μ-Cl)Li(THF)3(M = Zn,2; M = Fe,3), respectively; the coordination of the ClLi(THF)3moiety to the metal center in these compounds is a rare structural motif in the coordination chemistry of the d-block elements. Analogous reaction of 1,8-C10H6(NLiSiiPr3)2with MnCl2affords the mixed-metal Li−Mn−amido complex 1,8-C10H6(NSiiPr3)2Li(THF)MnCl(THF) (4) which features an unusual LiMnN2core.