Chinese Journal of Applied Chemistry ›› 1991, Vol. 0 ›› Issue (5): 99-101.

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CALCULATION OF CHEMICAL BOND PARAMETERS IN LaX3(X=F,Cl,Br,OH)CRYSTALS

Zhang Siyuan1, Bi Xianzhang2   

  1. 1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022;
    2. Jilin Institute of Education, Changchun
  • Received:1990-11-10 Revised:1991-01-23 Published:1991-10-10 Online:1991-10-10

Abstract: By using the phillips-Van Vechten-Levine theory, the parameters of chemical bond inLaX3 (X = F, Cl, Br, OH) crystals have been calculated.The covalency of La-X bond obtai-ned was about 5%, and the order of covalency values in bonds of lanthanum ion with vari-ous ligand agrees with that in the nephelauxetic series.

Key words: lanthanum halide, lanthanum hydroxide chemical bond, covalency