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Stereochemical modulation of emission behaviour in E/Z isomers of diphenyldipyrroethene from aggregation induced emission to crystallization induced emission

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Title Stereochemical modulation of emission behaviour in E/Z isomers of diphenyldipyrroethene from aggregation induced emission to crystallization induced emission
 
Creator GARG, K
GANAPATHI, E
RAJAKANNU, P
RAVIKANTH, M
 
Subject INDUCED RED EMISSION
INTRAMOLECULAR ROTATION
ENHANCED EMISSION
LIGHT-EMISSION
STATE
FLUORESCENT
RESTRICTION
DERIVATIVES
LUMINOGENS
DYNAMICS
 
Description Herein, we report the synthesis, separation and characterisation of the E- and Z-isomers of dipyrrolyldiphenylethene to study their emission behaviour in the aggregation state and solid state. The E-isomer showed pronounced aggregation induced emission (AIE) whereas the Z-isomer showed crystallization induced emission (CIE). The present study explains that the emission behaviour (AIE/CIE) is dependent on the inter/intra molecular interactions between the molecules. The study also confirms that restriction of intramolecular rotation (RIR) is the main cause of AIE/CIE in olefinic luminogens Tetraphenylethylene (TPE) type systems rather than E/Z isomerisation.
 
Publisher ROYAL SOC CHEMISTRY
 
Date 2016-01-15T07:05:18Z
2016-01-15T07:05:18Z
2015
 
Type Article
 
Identifier PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 17(29)19465-19473
1463-9076
1463-9084
http://dx.doi.org/10.1039/c5cp02400e
http://dspace.library.iitb.ac.in/jspui/handle/100/18005
 
Language en