Synthesis and characterization of silver(i) adducts supported solely by 1,3,5-triazapentadienyl ligands or by triazapentadienyl and other N-donors
作者:Jaime A. Flores、Yoshihiro Kobayashi、H. V. Rasika Dias
DOI:10.1039/c1dt10199d
日期:——
Halogenated 1,3,5-triazapentadienyl ligands [N(C3F7)C(C6F5)N}2]−, [N(CF3)C(C6F5)N}2]− and [N(C3F7)C(2,6-Cl2C6H3)N}2]−, alone or in combination with other N-donors like CH3CN, CH3(CH2)2CN, and N(C2H5)3, have been used in the stabilization of thermally stable, two-, three- or four-coordinate silver(I) adducts. X-Ray crystallographic analyses of [N(C3F7)C(C6F5)N}2]Ag}n, [N(C3F7)C(C6F5)N}2]Ag(NCCH3)}n, [N(C3F7)C(2,6-Cl2C6H3)N}2]Ag(NCCH3)}n, [N(CF3)C(C6F5)N}2]Ag(NCCH3)2}n and [N(C3F7)C(C6F5)N}2]Ag(NCC3H7)}n revealed the presence of bridging 1,3,5-triazapentadienyl ligands bonded to silver through terminal nitrogen atoms. These adducts are polymeric in the solid state. [N(C3F7)C(2,6-Cl2C6H3)N}2]AgN(C2H5)3 is monomeric and features a 1,3,5-triazapentadienyl ligand bonded to Ag(I) in a κ1-fashion via only one of the terminal nitrogen atoms. The solid state structure of [N(C3F7)C(C6F5)N}2]H has also been reported and it forms polymeric chains via inter-molecular N–H⋯N hydrogen-bonding.
卤代 1,3,5-三氮杂戊二烯配体 [N(C3F7)C(C6F5)N}2]-、[N(CF3)C(C6F5)N}2]- 和 [N(C3F7)C(2,6-Cl2C6H3)N}2]-,可单独使用或与 CH3CN 等其他 N-给体结合使用、CH3(CH2)2CN 和 N(C2H5)3]-单独或与其他 N-载体(如 CH3CN、CH3(CH2)2CN 和 N(C2H5)3)结合,已被用于稳定热稳定的二、三或四配位银(I)加合物。对[N(C3F7)C(C6F5)N}2]Ag}n、[N(C3F7)C(C6F5)N}2]Ag(NCCH3)}n、[N(C3F7)C(2,6-Cl2C6H3)N}2]Ag(NCCH3)}n进行了 X 射线晶体学分析、[N(CF3)C(C6F5)N}2]Ag(NCCH3)2}n和[N(C3F7)C(C6F5)N}2]Ag(NCC3H7)}n揭示了 1,3,5-三氮杂戊二烯配体通过末端氮原子与银键合的桥接作用。这些加合物在固态下是聚合物。[N(C3F7)C(2,6-Cl2C6H3)N}2]AgN(C2H5)3是单体,其特点是1,3,5-三氮杂戊二烯配体仅通过一个末端氮原子以κ1方式与Ag(I)结合。据报道,[N(C3F7)C(C6F5)N}2]H 的固态结构通过分子间 N-H⋯N 氢键形成聚合物链。