键参数拓扑指数与碱金属卤化物的晶格能及标准生成焓的相关性  

Research on Correlation Between Chemical Bond Parameter Topological Index and Lattice Energy and Standard Heat of Formation Alkaline Halides

作　　者：王杏芳[1] 

机构地区：[1]青海民族学院化学系,青海西宁810007

出　　处：《云南民族大学学报（自然科学版）》2007年第4期341-343,共3页Journal of Yunnan Minzu University:Natural Sciences Edition

摘　　要：根据碱金属卤化物的离子半径R,有效核电荷数Z*提出了一个新的拓扑指数Az,并将Az、△Xp(电负性差)与20种碱金属卤化物的晶格能、标准生成焓进行关联,拟合的回归方程的相关系数为0.994、0.973,其结果显示了满意的线性相关性.A new chemical bond parameter topological index Az was defined in this paper. Az was set up by Z ＊ and R. The correlation coefficient of Az and △Xp （ the electronegativity difference） with lattice energy and standard heat of formation 20 kinds of alkaline halides is 0. 994,0. 973. A, is an ideal topological index which can be used to reckon the lattice energy and standard heat of formation data of alkaline halides.

关 键 词：键参数拓扑指数 碱金属卤化物 晶格能 标准生成焓 相关性 

分 类 号：O642.11[理学—物理化学]