Lanthanide(III) Di- and Tetra-Nuclear Complexes Supported by a Chelating Tripodal Tris(Amidate) Ligand

作者：Brown Jessie L; Jones Matthew B; Gaunt Andrew J^*; Scott Brian L; MacBeth Cora E; Gordon John C

来源：Inorganic Chemistry, 2015, 54(8): 4064-4075.

DOI：10.1021/acs.inorgchem.5b00299

Syntheses, structural, and spectroscopic characterization of multinuclear tris(amidate) lanthanide complexes is described. Addition of K-3[N(o-PhNC(O)Bu-t)(3)] to LnX(3) (LnX(3) = LaBr3, CeI3, and NdCl3) in N,N-dimethylformamide (DMF) results in the generation of dinuclear complexes, [Ln(N(o-PhNC(O)tBu)(3))(DMF)](2)(mu-DMF) (Ln = La (1), Ce (2), Nd(3)), in good yields. Syntheses of tetranuclear complexes, [Ln(N(o-PhNC(O)tBu)(3))](4) (Ln = Ce (4), Nd(5)), resulted from protonolysis of Ln[N(SiMe3)2]3 (Ln = Ce, Nd) with N(o-PhNCH(O)tBu)(3). In the solid-state, complexes 15 exhibit coordination modes of the tripodal tris(amidate) ligand that are unique to the 4f elements and have not been previously observed in transition metal systems.

• 出版日期2015-4-20
• 单位Los Alamos