γ-modification of poly[(N,N-diethyldithiocarbamato)silver(I)]

In the title compound, catena-poly[[trisilver(I)-tri-μ3-N,N- diethyldithiocarbamato-3′κS:1κS′:2κS;1κS: 2κS′:3κS;2κS:3κ2S,S′: 1′κS′], [Ag3(C5H10NS 2)3]n, the trigonally and tetrahedrally coordinated Ag atoms are μ3-bridged by κ3- and κ4-S2CNEt2 ligands to form a ribbon structure along the c axis. There is a twofold axis parallel to the b axis and passing through the tetrahedrally coordinated Ag atom. The S 2CNEt2 ligands coordinate the Ag atoms in η1,η2- and η2,η2- fashions, depending on the bridging S atoms. The distances between the trigonal Ag and S atoms are 2.4915 (11)-2.6205 (11) Å, while those between the tetrahedral Ag and S atoms are 2.5457 (11) and 2.7145 (10) Å. The shortest Ag⋯Ag distance between trigonal Ag atoms is 2.8336 (7) Å, which indicates a weak Ag⋯Ag interaction, whereas the shortest distance between trigonal and tetrahedral Ag atoms is 3.463 (6) Å, which is considered as non-bonding. © 2006 International Union of Crystallography.