引用本文:
刘世昌, 杨光弟, 樊玉国, 金钟声, 金松春, 朱天培. 硝酸铕与含氮冠醚(2,2)配合物的分子和晶体结构[J]. 应用化学,
1986, 3(1): 46-50.
Citation: Liu Shichang, Yang Gangdi, Fan Yuguo, Jin Zhongsheng, Jin Songchun, Zhu Tianpei. THE MOLECULAR AND CRYSTAL STRUCTURE OF THE COMPLEX OF AZACROWN(2,2) WITH EUROPIUM NITRATE[J]. Chinese Journal of Applied Chemistry, 1986, 3(1): 46-50.
Citation: Liu Shichang, Yang Gangdi, Fan Yuguo, Jin Zhongsheng, Jin Songchun, Zhu Tianpei. THE MOLECULAR AND CRYSTAL STRUCTURE OF THE COMPLEX OF AZACROWN(2,2) WITH EUROPIUM NITRATE[J]. Chinese Journal of Applied Chemistry, 1986, 3(1): 46-50.
硝酸铕与含氮冠醚(2,2)配合物的分子和晶体结构
摘要:
硝酸铕与含氮冠醚(2,2)配合物晶体属单斜晶系,空间群为P21/n,晶胞参数为a=16.2745(81):b=11.5237(25),c=12.5658(60)Å,β=112.180(34)°,Z=4.强度数据由四圆衍射仪收集到独立的可观察反射点数为2892条,采用MoKa辐射。结构参数的修正采用方块矩阵最小二乘法,R=0.042.得出铕离子位于环的平均平面,两个硝酸根分别位于环的两侧。铕的配位数为10。铕离子与四个氧原子和二个氮原子以及二个双齿NO3-键合,构成配合物的阳离子部分,晶体的另一部分为阴离子NO3-。
English
THE MOLECULAR AND CRYSTAL STRUCTURE OF THE COMPLEX OF AZACROWN(2,2) WITH EUROPIUM NITRATE
Abstract:
The crystals of the complex of azacrown (2,2) with Eu(NO3)3 are monoclinic system with space group P21/n and parameters of unit cell a=16.2745(18), b=11.5237(25),c=12.5658(60)Å, β=112.180(34)°, Z=4.The diffraction data were collected on the Nicolet XRD R3 four-circle diffractometer using MoKα radiation. Its structure was solved by heavy-atom method. The structure parameters were refined by means of block-diagonal matrix least-square method, R=0.042. The coordination number of the europium ion is ten. The europium ion is in the mean plane of the ring and linked to 4 oxygen atoms,2 nitrogen atoms of the crown and 2 nitrates forming cation part of the complex. Two nitrates are localized in each side of the crown ring.
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