Chromium(III) complexes with 2-(2′-pyridyl)imidazole: Synthesis, crystal structure and magnetic properties

► New heteroleptic chromium(III) complexes of formula EPh4[Cr(pyim)(C2O4)2]·H2O (E = P and As). ► Rational design of chromium(III) building blocks for metal assembling. ► A novel di-μ-dihydroxodichromium(III) complex with a temperature-dependent weak intramolecular antiferromagnetic coupling.