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metal-organic compounds
The CuN4O2 chromophore in [Cu(C10H9N3)2(C3H5O2)]Cl.H2O exhibits trigonal distorted square-pyramidal stereochemistry around the metal centre, with the second O atom of the propionate group occupying a sixth coordinating position at a longer distance of 2.640 (4) Å, to give (4 + 1 + 1*)-type coordination. The Cl− ion participates in N—HCl hydrogen bonding.