Abstract
Two bismuth(III) halides, [Me3TPT]2[Bi6I24] (1, TPT = 2,4,6-tri(4-pyridyl)-1,3,5-triazine) and [Me3TPT][BiCl6]·3H2O (2), were solvothermally prepared using in situ N-alkylated TPT derivatives as structure-directing agents. In compound 1, six {BiI6} units are aggregated to form a hexanuclear [Bi6I24]6− cluster via sharing edges. The [Me3TPT]3+ cations occupy the space between the adjacent clusters. Compound 2 is a simple monometallic unit, in which the Bi(III) is coordinated by six Cl− ions. It is notable that the cations [Me3TPT]3+ are generated by in situ N-methylation reaction of TPT. UV–Vis spectra analyses imply that 1 and 2 possess semiconductor behavior with energy gaps of 2.07 and 2.97 eV, respectively. Their catalytic activity for the decomposition of methyl orange (MO), together with possible mechanism, have been studied.
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