Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 17, Issue 14, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.202200281
Keywords
mesoionic N-heterocyclic imines; photophysical properties; TD-DFT
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Funding
- National Natural Science Foundation of China [22171284, 21602249]
- Fundamental Research Funds for the Central Universities
- Research Funds of Renmin University of China [20XNLG20]
- Public Computing Cloud Platform, Renmin University of China
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N-heterocyclic imines are widely used in transition-metal chemistry, main-group chemistry and catalysis due to their enhanced basicity and nucleophilicity. Mesoionic N-heterocyclic imines, which feature more highly ylidic form, are still in its early stage but show potential as luminescent materials.
N-heterocyclic imines are widely used in transition-metal chemistry, main-group chemistry as well as catalysis, due to their enhanced basicity and nucleophilicity which benefit from their ylidic form. As their analogs, mesoionic N-heterocyclic imines, which feature more highly ylidic form, is still in its infancy though excellent works also achieved. Here we reported the synthesis, characterization and photophysical properties of mesoionic N-heterocyclic imines. TD-DFT are employed to get deeper insight into the mechanism of the photophysical behaviors. The unsubstituted mesoionic N-heterocyclic imines (4-6) displayed considerable quantum yields (QY: up to 43.8%) and could be potentially applied as luminescent materials.
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