The relationship between acidity of inorganic hydrides and molecular topological index(~mY_z)
Yulin Zhang · 2007
A new atomic valence is defined named δzi.On the basis of the δzi,a novel molecular connectivity index m Yz(m=0,1) is constructed.Its formulas of zero,first order topological index are 0 Yz=∑(δzi)0.5,1Yz=∑(δzi·δzi)0.5 respectively.For 13 inorganic hydrides 0 Yz or 1 Yz achieves its unique expression.The one variable related coefficient and two variable related index between 0 Yz,1Yz and pKa1 of inorganic hydrides different is 0.993 6 and 0.995 2.The related index of three variable linear regression equation with 0 Yz,1Yzand Mr(relative molecular weight) as independent variable is 0.995 7.