Incorporating transition metal complexes into Tetrathioarsenates(V): Syntheses, structures, and properties of two unprecedented [Mn(dien)(2)](n)[Mn(dien)AsS4](2n)center dot 4nH(2)O and [Mn(en)(3)](2)[Mn(en)(2)AsS4][As3S6]

Fu ML; Guo GC; Cai LZ; Zhang ZJ; Huang JS

Inorganic Chemistry, Vol.44, No.2, 184-186, 2005

Fu ML, Guo GC, Cai LZ, Zhang ZJ, Huang JS

Two transition-metal tetrathioarsenate complexes, [Mn(dien)(2)](n)[Mn(dien)AsS4](2n),(.)4nH(2)O (1) with one-dimensional water chain and [Mn-(en)(3)](2)[Mn(en)(2)AsS4][As3S6] (2) with mixed-valence AS(3+)/As5+ character, have been synthesized and structurally characterized. The tetrathioarsenate(V) anion acts as a novel (mu(2)-n(1),n(2) ligand in 1 and as a chelating ligand in 2. The two compounds exhibit intriguing semiconducting properties (E-g = 2.18 eV (1), 2.48 eV (2)) and strong photoluminescence with the emission maximum occurring around 440 nm.