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The crystal structure and supramolecular chain of [La(NO3)(3)(OH2)(2)(phen)]center dot 15-crown-5
被引：11
作者：
Ji, ZP
Rogers, RD
机构：
[1] NO ILLINOIS UNIV,DEPT CHEM,DE KALB,IL 60115
[2] CHINESE ACAD SCI,CHANGCHUN INST APPL CHEM,LAB RARE EARTH CHEM & PHYS,BEIJING,PEOPLES R CHINA
关键词：
lanthanum(III) nitrate;
phenanthroline;
hydrogen bonded helical chain;
D O I：
10.1007/BF01668418
中图分类号：
O7 [晶体学];
学科分类号：
0702 ;
070205 ;
0703 ;
080501 ;
摘要：
[La(NO3)(3)(OH2)(2)(phen)]. 15-crown-5 is hexagonal, P6(5), with a = 10.955(2), c = 43.769(9) Angstrom, and D-calc = 1.668 g cm(-3) for Z = 6. In the complex, two nitrogen atoms (from phen) and eight oxygen atoms (six from three bidentate nitrate anions and two from water molecules) are coordinated to the central La(III) ion, forming a coordination polyhedron which is approximately a bicapped square antiprism. The coordinated water molecules donate hydrogen bonds to the oxygen atoms of the crown ether, forming polymeric hydrogen bonded chains which wrap helically along the unit cell direction c.
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页码：573 / 577
页数：5
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