Crystal structure of bis{μ-(<i>E</i>)-2-[(2-oxidophenylimino)methyl]quinolin-8-olato-κ<sup>4</sup><i>O</i>,<i>N</i>,<i>N</i>′,<i>O</i>′}bis[dibutyltin(IV)]
Acta crystallographica. Section E, Crystallographic communications