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In the crystal structure of the title compound, C6H7N·CH4N2O, the 2-methyl­pyridine and urea mol­ecules are linked via N—H...O and N—H...N hydrogen bonds, forming ribbons extending along the a axis. The dihedral angle between the 2-methyl­pyridine and urea mean planes is 89.09 (9)°. The methyl group shows rotational disorder wherein the H atoms are located over two sets of sites with equal occupancies.

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In the title compound, [Ni(C8H6ClO3)2(H2O)4], the NiII ion is located on a crystallographic inversion centre and is octa­hedrally coordinated by two 2-(4-chloro­phen­oxy)acetate ligands in axial positions and by four water mol­ecules in the equatorial plane. The acetate ligands are bound to the NiII ion in a monodentate manner through a carboxyl­ate O atom. In the crystal, O—H...O hydrogen bonds link the mol­ecules, forming a two-dimensional supra­molecular network lying parallel to the ab plane.
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