论文部分内容阅读
本文报道了La(NO_3)_3(bipy)(2H_2O)(B-15-C-5)(Mr=785.46)的合成和晶体结构。晶体属单斜晶系,空间群为P2_1/n。晶胞参数:a=11.951(6),b=18.181(7),c=14.754(5),β=96.19(3)°,V=3187.0,Z=4,D=1.637g/cm~3。晶体结构由直接法和Fourier合成解出,使用对角块矩阵和全矩阵最小二乘法对原子参数进行修正,最后偏离因子R=0.035(5261个,I>3σ(I)的衍射)。单晶结构分析表明,在该配合物中,直接参与配位的是联吡啶上的两个氮原子,三个NO_3中的六个氧原子以及两个水分子中的氧原子,La~(3+)的配位数为10。B-15-C-5是通过氢键与H_2O分子相连的。
The synthesis and crystal structure of La (NO_3) _3 (bipy) (2H_2O) (B-15-C-5) (Mr = 785.46) The crystal is monoclinic with space group P2_1 / n. Cell parameters: a = 11.951 (6), b = 18.181 (7), c = 14.754 (5), β = 96.19 (3) °, V = 3187.0, Z = 4, D = 1.637 g / cm ~ 3. The crystal structure was solved by the direct method and the Fourier method. The parameters of the atom were corrected by using the diagonal block matrix and full matrix least square method. Finally, the diffraction was deviated from the factor R = 0.035 (5261, I> 3σ (I)). The single crystal structure analysis showed that two nitrogen atoms, three oxygen atoms in NO3 and two oxygen atoms in water were directly involved in the coordination of La (3 +) Has a coordination number of 10. B-15-C-5 is connected to H 2 O by hydrogen bonding.