Chem. Sci., 2025, Accepted Manuscript DOI: 10.1039/D5SC05257B, Edge Article Gui-Min Jiang, Fangfang Wei, Kam Keung Leung, Siye Wu, Kenneth Kam-Wing Lo, Keith Man-Chung Wong Compared to well-developed iridium(III) complexes, cyclometallated rhodium(III) complexes are underexplored as bioimaging reagents and photosensitisers, primarily due to the presence of non-emissive low-lying d–d excited states that limit their photophysical...