Tripodal Heptazine Core‐Based C3‐Symmetric Multi‐Azo(Hetero)Arenes: Photoswitching, Supramolecular Sol–Gel Behavior, and Base Sensing Prospects. - Kumar, Himanshu; Kumar, Pravesh; Kumar, Amit; Mahadevan, Anjali; Dhingra, Kirti; Kailasam, Kamalakannan; Venkataramani, Sugumar (Chemistry - A European Journal, 2025)