Affiliation:
1. Collaborative Innovation Center for Advanced Organic Chemical Materials Co‐constructed by the Province and Ministry Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules College of Chemistry and Chemical Engineering Hubei University Wuhan 430062 P. R. China
2. School of Chemistry and Chemical Engineering Huaiyin Normal University Jiangsu Engineering Laboratory for Environment Functional Materials Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection No. 111 West Changjiang Road Huaian Jiangsu Province 223300 P. R. China
Abstract
AbstractMolecular motors, based on overcrowded alkenes (L) serving as ligands to chelate lanthanide nitrate, afford the first lanthanide‐functionalized water‐soluble ionic compound [L2‐Ln(NO3)2(H2O)2]·NO3 (LnL2). Benefitting from the “pull–push” feature of L together with 3LMCT from L to LnIII, irradiation with visible light not only drives photochemical isomerization but also induces energy transfer from L to LnIII, decreasing their intensity of low‐energy 3LMCT (ligand‐to‐metal triplet energy transfer) absorptions and sensitizing the Ln‐based luminescence. Thus, the typical EuIII‐based luminescence of EuL2 favors tracing its movement by time‐resolved luminescence, and temperature‐dependent luminescence renders it possibly to be used as potential luminescent thermometers. Very excitingly, besides a contraction of the stator by Ln–L interactions on decreasing the steric hindrance on the “fjord region,” the efficiency of intramolecular 3LMCT sensitization synergetically regulates the rotary motion of lanthanide‐complexed motors in thermal helix inversion steps.
Funder
China Postdoctoral Science Foundation
National Natural Science Foundation of China
Subject
Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
1 articles.
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