1,3-Bis[5-(2-pyrid-yl)-1H-tetra-zol-1-yl]propane.

The title compound, C(15)H(14)N(10), is a multidentate ligand obtained by the reaction of 5-(2-pyrid-yl)tetra-zole with 1,3-dibromo-propane. The mol-ecule consists of two 5-(2-pyrid-yl)-1H-tetra-zol-1-yl units connected by a propyl-ene bridge in a U-like conformation. A twofold rotation axis passes through the central C atom.

(Dicyanamido)[2-(2-pyridylmethyl-imino-meth-yl)phenolato]copper(II) monohydrate.

The title compound, [Cu(C(13)H(11)N(2)O)(C(2)N(3))]·H(2)O, is a mononuclear copper(II) complex in which the Cu(II) ion has a slightly distorted square-planar geometry and is coordinated by two N atoms and one O atom from the Schiff base ligand and by an N atom from dicyanamide. The O atoms of water mol-ecules contribute to O-H⋯N, O-H⋯O hydrogen bonds, leading to the formation of sheets parallel to the ac plane. There are also weak inter-actions between inversion-related mol-ecules.