Syntheses, characterization and X-ray structures of the first copper(I) and silver(I) complexes with ATT (ATT=6-aza-2-thiothymine)

The reaction of copper(I) chloride with 6-aza-2-thiothymine (ATT, 1) and triphenylphosphane in methanol/chloroform gives [(ATT)CuCl(PPh(3))] (2) as a neutral complex. [(ATT)Ag(NO(3))-(PPh(3))(2)].MeOH (3) can be obtained by the reaction of 1 with silver(I) nitrate and triphenylphosphane in methanol/chloroform in excellent yields and the single crystals of 3 can be obtained from acetonitril solution. Both complexes were characterized by infrared spectroscopy, elemental analyses as well as by X-ray diffraction studies. Crystal data for 2 at -80degreesC: space group I2/a with a = 1859.3(1), b = 1143.2(1), c = 2208.2(1) pm, beta = 104.84(1)degrees, Z = 8, R(1) = 0.0355 and for 3 at -80degreesC: space group P2(1)/c with a = 1344.1(1), b = 1553.6(1), c = 1977,3(3) pm, beta = 105.26(1)degrees, Z = 4, R(1) = 0.0436.