Syntheses of 2,4-Disubstituted 1,3,5-Triazapentadienyl Ligands Having Two Guanidinato Moieties and Their Use in the Isolation of Copper(I) Complexes

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• 作者：Meisu Zhou ; Peng Li ; Hongbo Tong ; Yanping Song ; Tao Gong ; Jianping Guo ; Linhong Weng ; Diansheng Liu
• 刊名：Inorganic Chemistry
• 出版年：2008
• 出版时间：March 17, 2008
• 年：2008
• 卷：47
• 期：6
• 页码：1886 - 1888
• 全文大小：122K
• 年卷期：v.47,no.6(March 17, 2008)
• ISSN：1520-510X

文摘

2,4-N,N′-Disubstituted 1,3,5-triazapentadienyl ligands as their lithium salts [Li{(N(R)C(R′))₂N}]₂ [where R = SiMe₃ here and hereafter and R′ = dimethylamino (1) or 1-piperidino (2)] were synthesized via the reactions of LiN(SiMe₃)₂ with 2 equiv of the α-hydrogen-free carbonitrile dimethylcyanamide or 1-piperdinecarbonitrile and used in the isolation of the two-coordinate copper(I) complexes [Cu{(N(R)C(R′))₂N}]₂ [R′ = dimethylamino (3) and 1-piperidino (4)]. Complex 2 features a twisted W-shaped ligand backbone in the solid state. Complexes 3 and 4 show an unusual 12-membered ring dinuclear copper(I) triazapentadienyl and a less expressed ability to form a stable delocalized triazapentadienyl system.