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Nitrilotriacetic acid (H3NTA) reacts in the solid phase with zinc hydroxide (1:1) to form a 3D ladder-like metal-organic framework that forms wurtzite ZnO nanoparticles when heated above 600 °C. Complex 1 contains a 1D zig-zag water chain. A mixed coordination network 2 is formed with excess ZnII hydroxide, which, on decomposition at about 500 °C, forms microwires of ZnO.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)