Synthesis and crystal structure of a 2D (6,3) coordination network, {[Ag(L)1.5]NO3}n [L=1,3-bis(benzylthio)propane]

A new dithioether silver(I) complex, {[Ag(L)(1.5)]NO3}(n) (1) has been prepared by the reaction of AgNO3 with 1,3-bis(benzylthio) propane (L) in methanol/chloroform. The structure was characterized by single-crystal X-ray diffraction analysis: rhombohedral system, space group R-3c, with a = b = 15.651(7), c = 39.26( 4) Angstrom, V = 8328( 1) Angstrom(3), and Z = 6. The crystal structure consists of [Ag(L)(1.5)](+) cations and NO3- anions. In 1, each silver( I) center is coordinated equivalently to three sulfur donors from three different ligands to give a trigonal-planar coordination geometry. Each L links two adjacent silver(I) centers in bismonodentate bridging mode to form a 2D ( 6,3) network sheet. Furthermore, these 2D sheets are linked by the weak coordination interactions between nitrate ions and silver( I) atoms to form a 3D brick-wall framework.