Table 1.

FTIR spectrum main peaks assignment.

Literature*	Ag3[PW12O40]	Ag3[PMo12O40]	Ag4[SiW12O40]	Ag6[SiW10V2O40]	Assignment (cm-1)
1,055-1,100	1074	945	1109	1006	n P-O
900-1,000	892	896	938	909	n M-O
700-850	807	654	837	795	n M-O-M

*Tsigdinos, 1978