Solvothermal Synthesis, Crystal Structure, Thermal Stability, and Mössbauer Spectroscopic Investigation of the Mixed-Valent Thioantimonate(III,V) [Ni(dien)2]2Sb4S9

Abstract

Antimony in two oxidation states: The mixed-valent thioantimonate anion [Sb4S9]4− in the compound [Ni(dien)2]2Sb4S9 contains SbVS4 tetrahedra, which are bound by one terminal S atom to the Sb3S7 backbone of the anion (see figure). dien=diethylenetriamine.