A Nonarchetypal 5,6-Dihydro-2H -pyrano[3,2-g ]indolizine-Based Solution-Solid Dual Emissive AIEgen with Multicolor Tunability

Raghuvanshi, Ashutosh ; Jha, Ajay Kumar ; Sharma, Ashutosh ; Umar, Shahida ; Mishra, Shachi ; Kant, Ruchir ; Goel, Atul (2017) A Nonarchetypal 5,6-Dihydro-2H -pyrano[3,2-g ]indolizine-Based Solution-Solid Dual Emissive AIEgen with Multicolor Tunability Chemistry - A European Journal, 23 (19). pp. 4527-4531. ISSN 0947-6539

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Official URL: http://doi.org/10.1002/chem.201605844

Related URL: http://dx.doi.org/10.1002/chem.201605844

Abstract

Screening of a chemical library of pyranones and their ring transformed fluorophores led to the discovery of a novel 5,6‐dihydro‐2H‐pyrano[3,2‐g]indolizine (DPI) class of the luminogen DPI 7, which exhibited unique solution–solid dual emission (SSDE) behavior with an emission color shift from bright‐green in solution to a strong red emission in the solid state. The AIE mechanism of these luminogens revealed a well‐defined set of noncovalent interactions (CH⋅⋅⋅O and CH⋅⋅⋅N) that block the motion of C2‐flexure leading to restriction of intramolecular vibrations (RIV) in the solid state. DPI‐7 is the first example of solution–solid dual emissive RIV‐based AIEgen, which has great potential both in biomedical imaging and optoelectronic fields.

Item Type:Article
Source:Copyright of this article belongs to John Wiley & Sons, Inc.
Keywords:Aggregation-Induced Emission; Chromophores; Fluorescence; Noncovalent Interactions; Restriction Of Intramolecular Vibration.
ID Code:117971
Deposited On:07 May 2021 09:42
Last Modified:07 May 2021 09:42

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