Single crystals of a novel chromium thiophosphate salt, [EMIM]3[(Cr(P3S9)2)], were isolated after ionothermal synthesis from the elements in [EMIM]CF3SO3 (EMIM = 1-ethyl-3-methylimidazolium). The octahedral Cr atom is coordinated to the two tridentate P3S93- ligands previously seen only in the related EMIM salt [EMIM]4[Ni(P3S9)2]. In addition, tridentate sulfur-bound ligands coordinated to Cr atoms have not been reported to our knowledge; most known polydentate ligands bound to Cr atoms are bidentate and contain organic fragments. The synthesis of this new compound further reinforces the viability of ionothermal synthesis in the investigation of new transition metal compounds and demonstrates the broader versatility of the thiophosphate ligand system. 

Ionothermal synthesis and characterization of [EMIM]3[(Cr(P3S9)2)] (EMIM = 1-ethyl-3-methylimidazolium)

247th National Meeting (2014)

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