Sequestration of Alkyltin(IV) Compounds in Aqueous Solution: Formation, Stability, and Empirical Relationships for the Binding of Dimethyltin(IV) Cation by N- and O-Donor Ligands

Table 4

Empirical parameters of (5) for the dependence of stability constants of dimethyltin(IV)/amine species on ionic strength in the molar or molal concentration scales, in NaCl_aq and t = 25°C.

pqr	log 𝐾^(𝑝𝑞𝑟^a,b)	𝐂^(𝐛)	▵𝜀^(𝐛)
	en
110	10.76±0.01	−0.368±0.009	−0.371±0.012
111	6.25±0.02	−0.442±0.011	−0.451±0.016
120	4.86±0.03	−0.116±0.012	−0.119±0.010
	ptr
110	14.24±0.02	−0.316±0.009	−0.328±0.009
111	8.78±0.03	−0.476±0.015	−0.474±0.011
120	3.46±0.03	−0.117±0.014	−0.121±0.018
	paam
110	11.93±0.02	0.058±0.013	0.044±0.004
111	7.46±0.03	−0.623±0.015	−0.636±0.016
121	7.54±0.05	−0.087±0.015	−0.106±0.009
	sper
110	14.67±0.02	−0.235±0.013	−0.236±0.009
111	12.79±0.01	−0.360±0.018	−0.364±0.0018
112	10.93±0.02	−0.557±0.017	−0.559±0.015
113	7.02±0.04	−0.716±0.027	−0.722±0.027
	pei
110	11.92±0.02	−0.284±0.015	−0.272±0.015
111	9.22±0.01	−0.410±0.021	−0.403±0.018
112	5.34±0.05	−0.850±0.019	−0.834±0.018
113	3.11±0.07	−0.653±0.026	−0.658±0.024

(a)log 𝐾_𝑝𝑞𝑟 values at I = 0.1 (in both molar or molal concentration scales), taken as reference ionic strength; (b)± standard deviation.