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本文用LCAO MO法讨论了A_2B_4型无机分子的结构,具体地分析了包含34,36和38个价电子的A_2B_4型分手和离子的结构和性质。本文着重地研究了N_2O_4分子的键型,认为NN键具有σ性质和π性质,N_2O_4分子中存在Π_6~8键,NN距离比正常单键键长长0.27乃是由于O原子间凡德华斥力以及N原子间静电斥力所引起的。 N_2O_3分子在结构上与N_2O_3分子十分相似,本文也一并讨论。
In this paper, the structure of A_2B_4 type inorganic molecules was discussed by LCAO MO method. The structure and properties of A_2B_4 type breakup ions containing 34, 36 and 38 valence electrons were analyzed. In this paper, the bond type of N 2 O 4 molecule is studied emphatically. It is considered that the NN bond has σ property and π property. The N_2O_4 molecule has Π_6 ~ 8 bonds, and the NN distance is longer than the normal single bond length by 0.27 due to van der Waals repulsion between O atoms As well as the electrostatic repulsion between N atoms. N 2 O 3 molecules are structurally similar to those of N 2 O 3 molecules, and are also discussed here.