Synthesis and crystal structure of a novel pentaconta-nuclear silver anionic cluster complex [HNEt3](4)[Ag50S7(SC6H4But-4)(40)]center dot 2CS(2)center dot 6C(3)H(6)O

A silver 4-tert-butylthiophenolate complex generated in situ reacted with CS2 in acetone to give an anionic cluster [Ag50S7(SC6H4But-4)(40)](4-), the core of which consists of fifty silver atoms and forty-seven sulfur atoms, shaped like a discus with a diameter of ca. 2.0 nm.