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A novel silicotungstate-based silver(I) compound, formulated as [{Ag8(H3mtz)12}{SiW12O40}2]·8H2O (1) (H3mtz = 3-Mercapto-1,2,4-triazole) has been hydrothermally synthesized. This compound was identified by the single-crystal X-ray diffraction, and also characterized by FT-IR, UV, TG, PXRD and elemental analyses. The data show that it possesses the octanuclear silver(I) clusters and the anionic silicotungstates, which were connected via the hydrogen bonds and weak Ag-O bonds. Interestingly, the estimated optical bandgap of compound 1 is 1.95 eV, which falls into the range of semiconductors. [ABSTRACT FROM AUTHOR]

Starting from tripodal ligand tris-(methyl-imidazole) amine (1) the colourless complex tris-(methyl-imidazole)aminesilver(I)perchlorate (2) has been synthesized, characterized by IR, UV/Vis and HNMR spectroscopic studies and finally solid state structure has been established by single crystal X-ray diffraction studies. A single crystal X-ray structure determination revealed the formation of coordination polymer. The crystal structure possesses weak d-d 'argentophilic' interactions with Ag-Ag separation (3.348 Å). The weak luminance at 375 nm may be this Ag-Ag weak interaction. The molecule possesses weak H-bonding with C2 and C4H of imidazole with oxygen of ClO. [ABSTRACT FROM AUTHOR]