techniques. Remarkable red shifts were observed for the absorption band maxima of the electronic spectra of these copper(II) complexes (598 nm for 1 and 600 nm for 2) in comparison to that of unsubstituted (1,4,7,10-tetraazacyclotridecane-11,13-dione)copper(II) species (516 nm). The crystal structures of 1 and 2(which crystallised in the form [(CuL2)2]·3H2O·MeCN) have been determined by X-ray diffraction analysis
两个大环二氧四胺
配体4-(
喹啉-8-甲基)-1,4,7,10-四氮杂
环十三烷-11,13-二酮(H 2 L 1)和4,7-双(
喹啉-8-甲基)-1合成了4,7,10-四氮杂
环十三烷-11,13-二酮(H 2 L 2)。所得的二恶英大环容易配位Cu 2+并伴有
配体的双重去质子化。通过ESR,UV / VIS和循环伏安技术研究了
铜(II)配合物[CuL 1 ] 1和[CuL 2 ] 2的溶液行为。这些
铜的电子光谱的最大吸收带观察到明显的红移(II)与未取代的(1,4,7,10-四氮杂环十三
癸烷-11,13-二酮)
铜(II)物种(516 nm)形成的络合物(1处598 nm和2处600 nm)。已经通过X射线衍射分析确定了1和2的晶体结构(以[(CuL 2)2 ]·3H 2 O·MeCN的形式结晶)。晶体学数据:1,正交晶体,空间群Pcab,a = 16.260(3),b = 7.739(2),c