X-ray investigation of diphthalocyanine complexes of thorium and uranium
X-ray investigation of diphthalocyanine complexes of thorium and uranium
复制标题
钍和铀的二酞菁络合物的 X 射线研究
DOI：
10.1007/bf00747050
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发表时间：
1974
影响因子：
0.8
通讯作者：
A. A. Lychev
中科院分区：
文献类型：
--
作者：
I. S. Kirin;A. B. Kolyadin;A. A. Lychev
用nx-射线衍射法研究了钍和铀二酞菁配合物的晶体，结果表明它们是等结构的，空间群为B2/b，Z=4，Upc2：a=18，73，b=15.60，c=18.70~，y=13.3f/~ThPc2：a=18.74，b=15，79，c=18.73，~(？)=113.3，用重原子方法进行了解释，并在各向同性近似下用最小二乘法对结构进行了修正。分子为夹心型，由两个扭曲的酞菁配体相互旋转38°形成，金属原子位于由8个氮原子组成的扭曲方形反棱镜的中心。
A n x-ray diffraction investigation of the crystals of thorium and uranium diphthalocyanine complexes was undertaken, and it was shown that they are isostructural with the following characteristics: space group B2/b, Z= 4; UPc2: a= 18, 73, b= 15.60, c= 18.70~, y= l13f/~ ThPc2: a= 18.74, b= 15, 79, c= 18.73,~,?,= 113.3~ The structures were interpreted by the heavy-atom method and refined by the method of least squares in isotropic approximation to R= 0,140 (ThPc 2) and 0.137 (UPc2). The molecules are of the sandwich type, formed by two distorted phthalocyanine ligaMs rotated to each other by 38~ The metal atom lies at the center of a distorted square antiprism formed by the eight nitrogen atoms.