A QSPR Study for the Prediction of the pKa of N-Base Ligands and Formation Constant Kc of Bis(2,2′-bipyridine)Platinum(II)-N-Base Adducts Using Quantum Mechanically Derived Descriptors

Table 3

Correlation matrix for the intercorrelation of various molecular descriptors involved in the Model I, II, and III.

	HNMVF	FNSA3	FPSA1	MNRI-C	MERI-C	HDSA1/TMSA	WPSA2	Q max	ESP-HA/HDCA
HNMVF	1
FNSA3	−0.665	1
FPSA1	−0.198	0.152	1
MNRI-C	0.252	−0.396	−0.034	1
MERI-C	0.246	−0.508	−0.191	0.784	1
ESP-HA/HDSA	0.888	−0.694	0.033	0.255	0.304	1
ESP-WPSA2	0.451	−0.368	0.065	−0.245	−0.137	0.661	1
Q max	0.464	−0.87	−0.033	0.389	0.361	0.558	0.228	1
ESP-HA/HDCA	0.971	−0.719	−0.072	0.289	0.293	0.965	0.542	0.559	1
Exp. pKa.	0.390	0.304	0.302	−0.377	−0.546	0.306	0.201	−0.338	0.343