Transmetallation reaction of Schiff-base-type arylmercury compounds with 4-ethoxyphenyltellurium(IV) trichloride and the crystal structure of (4-ethoxyphenyl)[(2-benzylideneamino-5-methyl)phenyl]tellurium(IV) dichloride
作者:Wu Yangjie、Ding Kuiling、Wang Yang、Zhu Ying、Yang Li
DOI:10.1016/0022-328x(94)80024-3
日期:1994.4
diaryltellurium dichlorides prepared were characterized by elemental analysis, IR, 1H nuclear magnetic resonance and mass spectroscopy. The crystal structure of (4-ethoxyphenyl) [(2-benzylideneamino-5-methyl)phenyl]tellurium dichloride shows that the coordination on tellurium can be considered as essentially pseudo-octahedral, with lone pair electrons occupying the forth equatorial site. The TeN distance
通过席夫碱型芳基汞化合物与4-乙氧基苯基碲三氯化物的金属转移反应,合成了一系列新的不对称二芳基二氯化碲。制备的所有不对称二芳基二氯化碲均通过元素分析(IR,1)进行表征H核磁共振和质谱。(4-乙氧基苯基)[(2-苄叉基氨基-5-甲基)苯基]二氯化碲的晶体结构表明,碲上的配位可被认为是基本上伪八面体,孤对电子占据了赤道第四个位点。TeN距离为2.905(2)Å,比Te和N的范德华半径之和(约3.7Å)短,表明Te和N之间存在大量次要分子内配位。N→Te分子内配位成立希夫碱部分呈近平面几何形状。