Dibut-yl{N'-[1-(5-chloro-2-oxidophenyl-κO)ethyl-idene]-3-hy-droxy-2-naphtho-hydrazidato-κN',O}tin(IV)

The five-coordinate Sn(IV) atoms in the two crystallographically independent mol-ecules of the title compound, [Sn(C(4)H(9))(2)(C(19)H(13)ClN(2)O(3))], are in distorted cis-C(2)NO(2)Sn trigonal-bipyramidal coordination environments. The tridentate dianion of the Schiff base, N'-[1-(5-chloro-2-oxidophen-yl)ethyl-idene]-3-hy-droxy-2-naphtho-hydrazide, displays inter-molecular O-H⋯N hydrogen bonding, which stabilizes the overall compound.