. Author manuscript; available in PMC: 2011 Mar 1.

Published in final edited form as: Dalton Trans. 2009 Jan 16;(13):2271–2280. doi: 10.1039/b818306f

Table 3.

Physical properties of cadmium bound to TRI peptides

Peptide	Apparent pK_a2^a	¹¹³Cd NMR^b	^111mCd PAC^c
TRIL9C	13.4	615	—
TRIL19C	14.3	627	—
TRIL9CL19C	—	615 and 623	—
TRIL16C	13.4	625	60% CdS₃ O, 40% CdS₃
TRIL12AL16C	12.2	574	100% CdS₃ O
TRIL16X^d	15.8	684	100% CdS₃
TRIL12L_D L16C^d	15.1	697	100% CdS₃

Based on a fit, which corresponds to the simultaneous release of two protons. Data from ref. 28, 34, 40, 51 and 63.

Given in ppm vs. the standard Cd(ClO₄)₂ in D₂O. Data from ref. 29, 40, 41, 49, 50, 63 and 64.

Percentage values of species are based on best fit to PAC. Data from ref. 41, 50 and 63.

X = penicillamine. L_D = D-leucine.