Anion- and Solvent-Induced Single-Crystal-to-Single-Crystal Transformation within an Iron(II) Triazole System: a Promising Luminescent Probe for CrO42- and Cyano-Containing Molecules.

Anion- and solvent-induced single-crystal-to-single-crystal transformation within an iron(II) triazole system has been generated from {[Fe(TPPT)2Cl2]·CHCl3} n (1a) to [Fe(TPPT)(C2O4)0.5Cl(H2O)] n (1b). Luminescence studies indicated that the resultant 1b can be considered as a promising luminescent probe for CrO42- and cyano molecules.