First Silver(I) - Complexes with Tetrazole Allyl Derivatives. Synthesis and Crystal Structure of [Ag2(C10H10N4S)2(H2O)2](BF4)2 and [Ag(C10H9ClN4S)(NO3)] π-Compounds (C10H10N4S and C10H9ClN4S - 5-(Allylthio)-1-phenyl- and 5-(Allylthio)-1-(4-chlorophenyl)-1H-tetrazole)

Crystalline silver(I) pi-complexes [Ag-2(atpt)(2)(H2O)(2)](BF4)(2) (1) (atpt - 5-(allylthio)-1-phenyl-1H-tetrazole (C10H10N4S)) and [Ag(atcpt)(NO3)] (2) (atcpt - 5-(allylthio)-1-(4-chlorophenyl)-1H-tetrazole (C10H9ClN4S)) complexes have been obtained using silver salt and the organic ligands. Compounds were characterized by X-ray single crystal diffraction: for 1 space group P2(1)/n, a = 10.4560(5), b = 11.4008(5), c = 12.7550(7) angstrom, beta = 98.128(3)degrees, V = 1505.21(13) angstrom(3) at 200 K, Z = 2; for 2: space group P2(1)/a, a = 8.6790(8), b = 13.7324(10), c = 12.4597(13) angstrom, beta = 102.288(5)degrees, V = 1451.0(2) angstrom(3) at 200 K, Z = 4. In both structures silver(I) atoms possess a trigonal pyramidal coordination environment with essentially different coordination modes of organic ligands. The Ag(I) arrangement in 1 involves the N3 and N4 atoms of two adjacent atpt molecules, an olefin C=C bond and a water molecule at the apical position. In crystal structure of 2 two O atoms from NO3- anions occupy two equatorial position of silver(I) coordination polyhedron, and atcpt is attached to the metal centre through the N4 atom of tetrazole core only. The weakly bound C=C bond is located at the apical position of Ag(I) environment.