排序方式: 共有1条查询结果,搜索用时 0 毫秒
1
1.
SUN Hong-Ye HUANG Chun-Hui GAN Liang-Bing XU Guang-XianState Key Laboratory of Rare Earth Material Chemistry Applications Peking University Beijing ChinaMA Zhe-Sheng SHI Ni-Cheng China University of Geoscience Beijing China 《中国化学》1995,13(2):150-155
The titled complex has been synthesized by the reaction of sodium sulfo-salicylate with lanthanum and yttrium perchlorate. The crystal structure has been determined by single crystal X-ray diffractometry. The crystal is monoclinic with space group C2/c. The unit cell parameters are as follows: a=16.289(8), b=18.323(8), c=22.044(8) A, β=106.34(2)°, V=6314(6) A3, Z=4 and Dc=1.764 g/cm3. The structure was solved by direct method. The least-square refinement based on 3776 observed reflections [F > 6σ(F)] converged to a final R=8.6% and F(000) is 3548. Yttrium ion with eight-coordinate is located in central of the molecule, the two lanthanum ions with ten-coordinate are located at the two sides of yttrium ion. There are two positions for Na in the molecule, one is in the C2 axis with six coordinate, the other one is in a general position with five-coordinate. 相似文献
1