The photostimulated planarization AIE molecules as evinced by Zhao and He underscore that stringent adherence to Baird's 4nπ protocol that (1) cross-conjugation of 4nπ electrons from different rings or (2) planar stability is achieved upon light excitation despite the conjugated electron is not strictly adhered to Baird's rules, could still behave as planarized conversion-type RIV molecules. This approach will further expand the AIE molecular library . Reproduced from Ref. with permission. Copyright (2014), American Chemical Society.