Chem. Commun., 2025, Accepted Manuscript DOI: 10.1039/D5CC04641F, Communication Feng Gao, Yanning Xu, Zeyang Ding, Hanwen Liu, Haoran Wang, parvej alam, Zijie Qiu, Ben Zhong Tang This work reports methylated tetraphenylethene derivatives exhibiting systematically enhanced and blue-shifted emission due to increased methylation-induced steric hindrance and reduced through-space conjugation (TSC). Temperature-dependent photophysical studies show TSC strength varies...