四配位杂配阴离子镧系配合物结构同源系列的合成与单晶X射线衍射研究：Ln[N[Si(CH3)2CH2CH2Si(CH3)2]]3(μ-Cl)Li(L)3 （Ln = Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、Yb；(L)3 =(THF)3、(Et2O)3、(THF)2(Et2O)）

Synthesis and single-crystal x-ray diffraction examination of a structurally homologous series of tetracoordinate heteroleptic anionic lanthanide complexes: Ln[N[Si(CH3)2CH2CH2Si(CH3)2]]3(mu-Cl)Li(L)3 (Ln = Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb; (L)3 =(THF)3, (Et2O)3, (THF)2(Et2O)].

作者信息

Just O, Rees W S

机构信息

School of Chemistry and Biochemistry, School of Materials Science and Engineering, and Molecular Design Institute, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, USA.

出版信息

Inorg Chem. 2001 Apr 9;40(8):1751-5. doi: 10.1021/ic9912023.

DOI:10.1021/ic9912023

PMID:11312729

Abstract

Anhydrous lanthanide(III) chlorides (Ln = Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb) react with 3 equiv of lithium 2,2,5,5-tetramethyl-2,5-disila-1-azacyclopentanide, Li[N[Si(CH3)2CH2Ch2Si(CH3)2]], in THF or Et(2)O to afford the monomeric four-coordinate heteroleptic ate complexes Ln[N[Si(CH3)2CH2CH2Si(CH3)2]]3(mu-Cl)Li(THF/Et2O)3 (Ln = Sm (1), Eu (2), Gd (3), Tb (4), Dy (5), Ho (6), Er (7), Tm (8), Yb (9)), whose solid-state structures were determined by the single-crystal X-ray diffraction technique. All complexes additionally were characterized by melting point determination, elemental analyses, and mass spectrometry.

摘要

无水镧系（III）氯化物（Ln = Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、Yb）与3当量的2,2,5,5-四甲基-2,5-二硅-1-氮杂环戊烷锂Li[N[Si(CH3)2CH2Ch2Si(CH3)2]]在四氢呋喃或乙醚中反应，得到单体四配位杂配配位化合物Ln[N[Si(CH3)2CH2CH2Si(CH3)2]]3(μ-Cl)Li(THF/Et2O)3（Ln = Sm (1)、Eu (2)、Gd (3)、Tb (4)、Dy (5)、Ho (6)、Er (7)、Tm (8)、Yb (9)），其固态结构通过单晶X射线衍射技术确定。所有配合物还通过熔点测定、元素分析和质谱进行了表征。