Synthesis and Characterization of the New Silver Maleonitrilediselenolates and Silver Maleonitriledithiolates [K([2.2.2]-cryptand)]4[Ag4(Se2C2(CN)2)x)4], [Na([2.2.2]-cryptand)]4[Ag4(S2C2(CN)2)4] x 0.33MeCN, [NBu4]4[Ag4(S2C2(CN)x)4], [K([2.2.2]-cryptand)]3[Ag(se2C2(CN)2)2] x 2MeCN, and [Na([2.2.2]-cryptand)]3[Ag(S2C2(CN)2). Article