苯甲酰羟胺—钼酰螯合物的分子结构及晶体结构  

MOLECULAR AND CRYSTAL STRUCTURE OF MOLYBDENUM-BISBENZOHYDROXAMATE CHELATE COMPOUND

作　　者：崔美芳[1] 顾翼东[1] 陈民勤[2] 吴光[2] 

机构地区：[1]复旦大学化学系,上海200433 [2]复旦大学分析测试中心,上海200433

出　　处：《无机化学学报》1990年第4期448-453,共6页Chinese Journal of Inorganic Chemistry

摘　　要：继苯甲酰羟胺—钨酰螯合物WO_2(C_7H_6O_2N)_2的晶体结构测定后,本文报导了整合物MoO_2(C_7H_6O_2N)_2·C_6H_(13)OH的结构和特性,并初步提出了酰羟胺类试剂用于钨钼分离的可能性。苯甲酰羟胺—钼酰螯合物的分子及晶体结构已由四园衍射仪测定,晶体属空间群C_(2h)~5—P2_1/c,晶胞参数a=9.142(1),b=21.591(3),c=11.662(3)A,β=90.31(1)°,Z=4,最终吻合因子R=0.079.虽然结构中结合的已醇分子无法定位,但它与螯合物分子间强烈的氢键键合作用,则是十分明显的,这很可能是影响苯甲酰羟胺对钨钼分离效果的重要因素之一。To continue the studies on the structure of tungstyl-bisbenzohydroxamate chelate compound, we report herewith the characters and the structure of corresponding molybdenum chelate compound MoO2(C7H6O2N)2 · C6H13OH, and preliminarily put forward the possibility about using such kind of benzohydroxamates in the separation of tungsten and molybdenum. The compound crystallized in the space group P21/c with a = 9.142(1), b = 21.591(3),c=11.662(3)A, β= 90.31(1)° and Z=4. The structure was solved by direct method and refined by full matrix least squares with final R = 0.079 for 4239 observed reflections. In contrast to the correspondent of tungsten, the chelate molecule was hydrogen-bonded to the solvent molecule C6H13OH in the structure, that was why the benzohydroxamate could be used in the separation of tungsten from molybdenum.

关 键 词：苯甲酰羟胺 钼酰 螯合物 萃取 结构 

分 类 号：O614.612[理学—无机化学]