Gas, solution, and solid state coordination environments for the nickel(II) complexes of a series of aminopyridine ligands of varying coordination number
作者:JudithAnn R Hartman、Richard W Vachet、John H Callahan
DOI:10.1016/s0020-1693(99)00288-1
日期:2000.1
binding geometries of the nickel(II) complexes in the solid, solution, and gas phases: magnetic susceptibility measurements, absorption spectroscopy, electrochemistry, and analyzing the gas phase ion-molecule reactions in a mass spectrometer. The linked five-membered chelate character of the linear ligands appear to have imposed high-spin, octahedral geometry on the complexes in the condensed phases. The
摘要描述了一系列氨基吡啶配体从三齿到七齿的镍(II)配合物的合成和表征。配体包括三脚架配体三(2-((2-吡啶基甲基)氨基)乙基)胺,TREN-pyr和以下线性配体:(2-吡啶基甲基)(2-(2-((2-((2 -吡啶基甲基)氨基)乙基)氨基)乙基)胺,TRIEN-pyr;双(2-(((2-吡啶基甲基)氨基)乙基)胺,DIEN-pyr;(2-吡啶基甲基)(2-((2-吡啶基甲基) )氨基)乙基)胺,EN-pyr;双(2-吡啶基甲基)胺,AM-pyr;和甲基(2-(((吡啶基甲基)氨基)乙基)胺,MeEN-pyr。采用以下方法测定固相,溶液和气相中镍(II)配合物的结合几何形状:磁化率测量,吸收光谱,电化学,在质谱仪中分析气相离子分子反应。线性配体的连接的五元螯合特征似乎在凝聚相中对复合物施加了高自旋八面体的几何形状。三脚架配体TREN-pyr和两个三齿配体AM-pyr和MeEN-pyr在气