| Popis: |
Two new polymeric iodoargentate hybrids induced by rare earth metal complexes and conjugated organic cations, {[Er(DMF)8][Ag6I9]}n (1) and [(MMP)(AgI2)]n (2) (MMP = 1-methyl-4-methylpyridinium) were obtained by the routine synthetic reaction and structurally determined. In compound 1, a (Ag6I9)n3n– chain is defined by edge-sharing Ag6I12 units, and in 2, the (Ag2I4)n2– chains are constructed by edge-sharing AgI4 tetrahedra. C–H···I hydrogen bonds between cations and iodoargentate polyanions contribute to their structural extension from 1D to a 2D layer (for 1) and a 3D network (for 2). The UV/Vis spectra indicate that compared with 2, compound 1 exhibits a narrower adsorption scope with an onset at about 360 nm, and it has a much wider bandgap of about 3.50 eV. |
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