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提出了两个新的拓扑指数 :Y =(DR+2 ) n0 5+2N ,Z =[(8-DR) N(n -1 ) (w -1 ) ]0 5。将主族元素 2 5种单中心无机含氧酸的pk1实验值与其Y、Z相关联 ,使用最小二乘法进行线性回归 ,拟合得 :pk1=1 9 977-2 43 0Y -0 944Z(r=0 993 )。
Two new topological indices are proposed: Y = (DR + 2) n0 5 + 2N, Z = [(8-DR) N (n -1) (w -1)] 0 5. The main group of elements 25 kinds of single-site inorganic oxyacid pk1 experimental value associated with its Y, Z, using the least squares method for linear regression fit: pk1 = 1 9 977-2 43 0Y -0 944Z (r = 0 993).