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A new one-dimensional (1-D) Zn(II) nitronyl nitroxide complex bridged by pyri- dine-2,4-dicarboxylate anion, [Zn(NIT4Py)(2,4-PDA)(H2O)2]n (NIT4Py = 2-(4?-pyridyl)-4,4,5,5- tetramethylimidazoline-1-oxyl-3-oxide and 2,4-PDA = pyridine-2,4-dicarboxylate anion), has been synthesized and structurally characterized by X-ray diffraction. It crystallizes in monoclinic, space group P21/c with a = 16.834(2), b = 7.4376(10), c = 18.295(3) ?, β = 102.848(2)o, V = 2233.2(5) ?3, C19H23N4O8Zn, Mr = 500.78, Dc = 1.489 g/cm3, μ(MoKα) = 1.152 mm–1, F(000) = 1036, Z = 4, the final R = 0.0390 and wR = 0.0915 for 3234 observed reflections. In the complex, each zinc(II) ion is six-coordinated by one nitrogen atom of the radical ligand (NIT4Py), one nitrogen atom and two oxygen atoms of two 2,4-PDA anions and two oxygen atoms of two water molecules. Each 2,4-PDA anion bridges two Zn(II) ions via a tridentate mode into a 1-D chain, and these 1-D chains are further linked into a 2-D network via hydrogen-bonding interactions.
A new one-dimensional (1-D) Zn (II) nitronyl nitroxide complex bridged by pyri-dine-2,4- dicarboxylate anion, [Zn (NIT4Py) = 2- (4? -pyridyl) -4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide and 2,4-PDA = pyridine-2,4- dicarboxylate anion, has been synthesized and structurally characterized by crystallography in monoclinic, space group P21 / c with a = 16.834 (2), b = 7.4376 (10), c = 18.295 (3)?,? = 102.848 (2) o, V = 2233.2 (5)? 3, C19H23N4O8Zn, Mr = 500.78, Dc = 1.489 g / cm3, MoMα = 1.152 mm-1, F000 = 1036, Z = 4, the final R = 0.0390 and wR = 3234 observed reflections. In the complex, each zinc (II) ion is six-coordinated by one nitrogen atom of the radical ligand (NIT4Py), one nitrogen atom and two oxygen atoms of two 2,4-PDA anions and two oxygen atoms of Two water molecules. Each 2,4-PDA anion bridges two Zn (II) ions via a tridentate mode into a 1-D chain, and these 1-D chains are further linked into a 2-D network via hydrogen-b onding interactions.