Syntheses and Structures of Rare Earth Nitrate Complexes with 2.6-Diacetylpyridinebis(Semicarbazone)
Syntheses and Structures of Rare Earth Nitrate Complexes with 2.6-Diacetylpyridinebis(Semicarbazone)出 版 物:《高等学校化学学报(英文版)》 (Chemical Journal of Chinese Universities)
年 卷 期:1988年第2期
页 面:45-53页
主 题:nitrate constants monoclinic conductance crystallized complexes Semicarbazone neutral EtOH titration
摘 要: Six rare earth nitrate complexes of 2, 6-diacetylpyridinebis (semicarbazone) (DAPSC) were synthesized and characterized by elemental analysis, IR spectra and electrical conductance. Molecular and crystal structures of complex [Sm(DAPSC)(NO3)2(EtOH)]NO3 were determined by X-ray diffraction method. C13H21N10O12 Sm crystallized in the monoclinic apace group C2/c with the following unit-cell constants, a=16.674(2)A, b = 10. 715(2)A, c = 25.242(4)A . β = 100.077(11)°; z=8, the final R factor is 0.025. The coordination number of Sm3+ is ten.