A novel supramolecular assembly of 3,5-dinitro-4-methylbenzoic acid and trans-1,2-bis(4-pyridyl)ethene

Co-crystallization of 3,5-dinitro-4-methylbenzoic acid and trans-1,2-bis(4-pyridyl)ethene gave an exotic assembly influenced by the Pr(III) species under hydrothermal conditions and a layered structure by direct co-crystallization of the reactants at ambient conditions.