Crystal structure and Hirshfeld surface analysis of a new mononuclear copper(II) complex: [bis(pyridin-2-yl-κ<i>N</i>)amine](formato-κ<i>O</i>)(<i>m</i>-hydroxybenzoato-κ<sup>2</sup> <i>O</i>,<i>O</i>′)copper(II)
Acta crystallographica. Section E, Crystallographic communications