Two Organic Hybrid Thiogermanates [Ni(dien)2]2(H2dien)Ge2S6 and [Ni(teta)2]2Ge4S10

Two new organic hybrid thiogermanates [Ni(dien)2](H2dien)Ge2S6 (1, dien = diethylenetriamine) and [Ni(teta)2]2Ge4S10 (2, teta = triethylenetetramine) were synthesized under solvothermal conditions. 1 contains a [Ni(dien)2] complex cation, a protonated dien molecule and a [Ge2S6]4− dimeric anion, while 2 consists of discrete [Ge4S10]4− adamantane-like cluster anions with [Ni(teta)2] complex cations as counter ions. The [Ge4S10]4− anion is composed of four nearly tetrahedral Ge4+ centers to which are bonded four terminal atoms and six bridging S atoms. Luminescence studies have shown that 2 exhibits an emission at 468 nm.