A two-dimensional Cu(I) framework incorporating the 1-phenyl-1H-1,2,3,4-tetrazole-5-thiol ligand.

The new two-dimensional coordination polymer, poly[(μ4-1-phenyl-1H-1,2,3,4-tetrazole-5-thiolato)copper(I)], [Cu(C7H5N4S)]n, has been prepared under solvothermal conditions by reacting CuBr with 1-phenyl-1H-1,2,3,4-tetrazole-5-thiol (Hptt) in an acetonitrile and acetone solution. In the crystal structure, each Cu(I) ion is coordinated by two N atoms and two S atoms from four ptt(-) ligands, and each ptt(-) ligand links four Cu(I) ions to form two-dimensional layers which lie parallel to the (100) plane. These layers stack along the [100] direction via van der Waals interactions.

catena-Poly[[[triaqua-cadmium(II)]-μ-2,2'-[oxalylbis(azanediyl)]diacetato-κO,O'] dihydrate].

The structure of the polymeric title complex, {[Cd(C(6)H(6)N(2)O(6))(H(2)O)(3)]·2H(2)O}(n), consists of chains running parallel to [01] in which the oxamidato ligand, deprotonated only at the carboxyl-ate groups, acts as a bridging bis-monodentate ligand. The Cd atom and the O atom of a coordinated water mol-ecule are located on a twofold axis. The coordination geometry around the Cd atom is distorted trigonal-pyramidal.

[N'-(3-Meth-oxy-2-oxidobenzyl-idene)nicotinohydrazidato]diphenyl-tin(IV).

The asymmetric unit of the title compound, [Sn(C(6)H(5))(2)(C(14)H(11)N(3)O(3))], contains two crystallographically independent mol-ecules that differ predominantly in the torsion of the phenyl rings. In both mol-ecules, the Sn(IV) ion is in a distored trigonal-bipyramidal geometry. The Sn-O distances are in the range 2.