Mixed-Valent Selenidoantimonates(III, V) With Transition-Metal Complexes as Counterions: Solvothermal Syntheses and Characterization of [M(dien)2]2Sb4Se9 (M = Mn, Fe), [Co(dien)2]2Sb2Se6, and [Ni(dien)2]2Sb2Se5

doi 10.1021/ic061520j.s004