1,2,4,5-Benzenetetracarboxylic acid: A versatile hydrogen bonding template for controlling the regioselective topochemical synthesis of head-to-tail photodimers from stilbazole derivatives - Ortega, Gabriela; Hernandez, Jesus; Gonzalez, Teresa; Dorta, Romano; Briceno, Alexander (Photochemical & Photobiological Sciences, 2018)