Studies on Rare Earth Complexes of Mixed-Ligands Containing [Et4NB12H11NHCOCH2CONH2]-and bipyO2

Abstract

Abstract: Mono-substituted amide derivative of [Et₄N]₂B₁₂H₁₂, [Et₄N]₂B₁₂H₁₁NHCOCH₂CONH₂·([Et₄N]₂BN), was obtained from acid-catalyzed reaction between [Et₄N]₂B₁₂H₁₂and malononjtrile, followed by hydrolysis. The derivative reacts with lanthanide chlorides and 2, 2'-bipyridine-N,N'-dioxide (bipyO₂) to produce 7 novel mixed-ligand rare earth (Ⅲ) complexes with the formula Ln(bipyO₂)₄(Et₄NBN)₃, where Ln = La, Nd, Sm, Gd, Dy, Ho and Er. These complexes were characterized by elemental analysis, IR, UV, ¹HNMR, ESRand molar conductivities. The thermal properties of the ligands and the complexes were investigated by TG-DTA.

Key words: Rare earth complex, Borane amide derivative, Bipyridine-N,N'-dioxide, Synthesis and property

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Hu Pei-zhi, Zhang Lun, Wu Hong-bin, Wang Feng-zhen. Studies on Rare Earth Complexes of Mixed-Ligands Containing [Et₄NB₁₂H₁₁NHCOCH₂CONH₂]^-and bipyO₂[J]. Chem. J. Chinese Universities, 1991, 12(7): 864.

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Studies on Rare Earth Complexes of Mixed-Ligands Containing [Et₄NB₁₂H₁₁NHCOCH₂CONH₂]^-and bipyO₂

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