The CuN4O2 chromophore in [CU(C10H9N3)(2)(C3H5O2)]Cl.H2O exhibits trig
onal distorted square-pyramidal stereochemistry around the metal centr
e, with the second O atom of the propionate group occupying a sixth co
ordinating position at a longer distance of 2.640 (4) Angstrom, to giv
e (4+1+1)-type coordination. The Cl- ion participates in N-H ... Cl h
ydrogen bonding.