作者:Min-Shiun Chao、Chang-Fang Ou、Shih-Liang Huang
DOI:10.1002/jccs.200000059
日期:2000.6
25.0°C The formation of their nickel(II)-complexes and the Ni-O to Ni-N bond rearrangements at the two amide sites of these complexes have been investigated quantitatively by potentiometric and spectrophotometric techniques under the same conditions. Electronic spectra of the nickel(II)-complexes of these ligands and their deprotonated species formed in aqueous solution were measured and discussed.
为了研究二氨基二酰胺对镍 (II)-二氨基二酰胺配合物的平衡和光谱特性的空间位阻、感应和环应变效应,四个四齿配体,4-甲基-4,7-二氮杂二酰胺(4-Me -L-2,2,2), 4,7-dimethyl-4,7-diazadecanediamide(4,7-N,N'-Me2-L-2,2,2), 4-ethyl-4,7-已合成二氮杂十二烷二胺 (4-Et-L-2,2,2) 和 4-甲基-4,8-二氮杂十二烷二胺 (4-Me-L-2,3,2)。它们的质子化常数已在 25.0°C 下在 0.1M KCl 中通过电位法测定 通过电位法定量研究了它们的镍 (II)-配合物的形成以及在这些配合物的两个酰胺位点处的 Ni-O 到 Ni-N 键重排和分光光度技术在相同的条件下。