X-RAY CRYSTAL-STRUCTURE OF A LATE-TRANSITION-METAL DIALKYLAMIDE, [(CUNET2)4]
X-RAY CRYSTAL-STRUCTURE OF A LATE-TRANSITION-METAL DIALKYLAMIDE, [(CUNET2)4]
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DOI：
10.1021/ic00175a027
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发表时间：
1984-01-01
影响因子：
4.6
通讯作者：
POWER, PP
中科院分区：
文献类型：
--
作者：
HOPE, H;POWER, PP
描述了铜酰胺的第一个完整的x射线晶体结构。LiNEt2与cur反应生成[(CuNEt2) 4]无色晶体，热稳定且可溶于烃。在约140 K下的x射线晶体结构测定表明，该化合物由离散的四聚体组成，包括由二乙胺基团桥接的两坐标铜原子的几乎完美的正方形平面。晶体呈四边形，a= 16.012 (6) a, c= 8.473 (4) a，空间群为14±a， Z= 4。Cu-Cu的距离为2.664 (2)A， Cu-N的平均键长为1.904 (3)A， N-Cu-N的角为175.4 (1)，Cu-Cu- cu的角为89.9 (1)e。这些晶体在空气中可以被短暂处理，但烃溶液对空气非常敏感。
The first complete X-ray crystal structure of a copper amide is described. Reaction of LiNEt2 with CuBr gives colorless crystals of [(CuNEt2) 4], which are thermally stable and hydrocarbon soluble. An X-ray crystal structure determination at ca. 140 K shows that the compound consists of discrete tetramers involving an almost perfect square plane of two-coordinate copper atoms bridged by diethylamide groups. The crystals are tetragonal with a= 16.012 (6) A and c= 8.473 (4) A, space group 14¡/a, and Z= 4. The Cu-Cu distance is 2.664 (2) A, and the average Cu-N bond length is 1.904 (3) A. The N-Cu-N angle is 175.4 (1), and the Cu-Cu-Cu angle is 89.9 (l) e. The crystals may be handled briefly in air, but hydrocarbon solutions are quite air-sensitive.