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 6

Correlation matrix for the intercorrelation of various molecular descriptors involved in the obtained QSPR Kc models.

	DPSA1-D  in CPSA	BETA pol.	Int. entropy	ESP-FNSA3	Min e-e REP-N	Min re. E-NH	Avg 1-e RI-C	Max n-n re.-CN
DPSA-1 D in CPSA	1
BETA pol.	0.0589	1
Int. entropy	−0.2198	0.1726	1
ESP-FNSA3	0.1137	−0.7118	−0.3991	1
Min e-e REP-N	0.0489	0.1131	0.0110	−0.6106	1
Min re. E-NH	−0.8457	0.1517	0.1730	−0.2553	−0.0182	1
Avg 1-e RI-C	−0.2928	−0.5384	0.0386	0.1479	0.1486	0.3245	1
Max n-n Re.-CN	0.0004	0.1123	0.0288	0.1108	−0.1606	−0.0185	0.0339	1
Exp. Kc	0.5104	0.2522	−0.6925	0.2009	0.0628	−0.4138	−0.3750	0.2586