Copper(II) complexes of aliphatic tridentate amine/dithioether ligands – Synthesis and molecular structures
作者:Marc Blomenkemper、Henning Schröder、Tania Pape、F. Ekkehardt Hahn
DOI:10.1016/j.ica.2012.04.023
日期:2012.7
of the copper(II) ion. The apical donors are bonded with significantly longer bond distances compared to identical donors in the basal plane. The weakly bound apical chloro ligand of 6 can be abstracted with silver(I) nitrate effecting the formation of the dinuclear complex 10 featuring a nitrato ligand coordinated to two copper(II) centers in a bridging fashion. For all copper(II) complexes the observed
三个新的三齿配体(1 - 3),具有通过亚乙基桥连接至两个硫醚施主功能与中央仲胺小号甲基或小号-苄基取代基已被合成并与铜(II)或氯化铜(II)硝酸盐反应。将得到的型[的CuX的络合物2(L)](L =胺-二硫醚配体)6,7和9显示出一个四方锥协调的几何形状与所述三齿的氮和硫的供体基团的配体占据三个基底结合金属离子上的位点。两个氯(6和7)或一个硝基配体(9源自金属前体盐的)完善了铜(II)离子的配位范围。与基面中的相同供体相比,顶端供体的结合距离明显更长。可以通过硝酸银(I)提取弱结合的6根顶端的氯配体,从而形成双核络合物10,其特征为以桥联方式与两个铜(II)中心配位的硝酸根配体。对于所有铜(II)配合物,观察到的Cu-S键距都非常相似,并且不受硫醚供体官能团上烷基基团的变化的显着影响。