[CH NH ] Ga SbS S O H: A Three-Dimensionally Open-Framework Heterometallic Chalcogenidoantimonate Exhibiting Ni Ion-Exchange Property.

An open-framework chalcogenidoantimonate, namely, [CH NH ] Ga SbS S O H (1), has been solvothermally synthesized and structurally characterized. Interestingly, 1 showed Ni ion-exchange properties and wide pH resistance, with a maximum exchange capacity of 76.9 mg g . To the best of our knowledge, this is the first example of amine-directed three-dimensional (3D) heterometallic chalcogenidometalates for highly selective Ni ion capture with a high distribution coefficient (K =1.65×10  mL g ).