2026-10-10T10:16:43Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34039036 2026-10-01T05:09:31Z category_1 category_4 category_915 category_14 category_15 category_873 category_39 category_734 category_64 portal_63 item_type_6 month_year_10_2026

Metal-Regulated Excited-State Intramolecular Proton Transfer and Excimer Pathways to Achieve Full Spectrum Luminescence Shao-Zhe Yi (14350122) Rui-Qi Huang (23627415) Xiao-Yu Yu (4876801) Wen He (108986) Xue-Cui Jiang (24931976) Peng-Yan Fu (11925429) Bao-Ning Li (11925432) Mei Pan (1671040) Biophysics Biochemistry Physical Sciences not elsewhere classified Molecular Biology Neuroscience Chemical Sciences not elsewhere classified Ecology Biological Sciences not elsewhere classified Cancer theoretical calculation indicates including white light enol – keto two competing processes excimer tristate modulation excimer fusion mechanism excimer dual emission 2 +</ sup molecule esipt emission excimer processes excimer pathways excimer luminescence spectrum luminescence single platform second step regulated within original single molecular aggregation first step different solvents coordination strategy achieve full We have developed a novel metal–organic photoluminescence system that exhibits a coupled behavior of excited-state intramolecular proton transfer (ESIPT) and excimer luminescence. The emitter can achieve full-spectrum luminescence from blue, green, yellow to red, including white light through enol–keto-excimer tristate modulation. Transient absorption analysis combined with theoretical calculation indicates that the first step of Zn²⁺ metal coordination promotes molecular stacking, transforming the original single-molecule ESIPT emission into ESIPT and excimer dual emission. The second step of Cu²⁺ or Ni²⁺ metal coordination further triggers the ESIPT and excimer fusion mechanism to bear significant solvent dependence character, for which the two competing processes are dominated by the degree of molecular aggregation in different solvents. The results provide new insights into how ESIPT and excimer processes can be coupled and regulated within a single platform and establish a metal-coordination strategy for constructing ESIPT-excimer-coupled systems toward multilevel luminescent materials and applications. 2026-10-01T00:00:00Z Text Journal contribution 10.1021/acs.inorgchem.6c03978.s001 https://figshare.com/articles/journal_contribution/Metal-Regulated_Excited-State_Intramolecular_Proton_Transfer_and_Excimer_Pathways_to_Achieve_Full_Spectrum_Luminescence/34039036 CC BY-NC 4.0