Table 2.

Percentages of the four-coordinate Cd^II species {CdS₃O} for different peptides of the TRI family.

Peptide	Four-coordinate CdII {CdS3O}[a][%]
	L#AL#C or L#CL#A site	L#Pen site
TRI L12AL16C	100	–
TRI L16Pen	–	0
TRI L12AL16CL23Pen	100	90
TRI L16PenL23CL26A	80	5–10
Grand L16PenL26AL30C	100	0

^[a]Values determined based on correlation between the percentages of three- and four-coordinate Cd^II species from ^111mCd PAC spectroscopy (PAC = perturbed angular correlation of γ rays) and the corresponding ¹¹³Cd NMR chemical shifts obtained for different Cd^II complexes of the TRI peptide family.^{[6, 11]}