Design and synthesis of BODIPY-clickate based Hg2+ sensors: the effect of triazole binding mode with Hg2+ on signal transduction

2016 ◽  
Vol 45 (6) ◽  
pp. 2700-2708 ◽  
Author(s):  
Mani Vedamalai ◽  
Dhaval Kedaria ◽  
Rajesh Vasita ◽  
Shigeki Mori ◽  
Iti Gupta
Keyword(s):  
Signal Transduction ◽  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Binding Mode ◽  
Mercury Ion ◽  
Ion Binding ◽  
Design And Synthesis ◽  
Transfer Processes ◽  
Stokes Shifts ◽  
Mercury Sensing

Highly selective BODIPY-clickates for mercury sensing are reported. These BODIPY clickates exhibits emission in red region with unprecedented large Stokes shifts (116 and 154 nm) upon mercury ion binding due to the intramolecular charge transfer processes.

Picosecond dynamics of intramolecular charge-transfer processes of β-substituted porphyrins adsorbed on the porous glass

1997 ◽  
Vol 269 (3-4) ◽  
pp. 274-280
Author(s):  
Shoji Kotani ◽  
Hiroshi Miyasaka ◽  
Akira Itaya ◽  
Yasushi Hamanaka ◽  
Noboru Mataga ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Porous Glass ◽  
Intramolecular Charge Transfer ◽  
Transfer Processes

scholarly journals Combined Theoretical and Experimental Study on Intramolecular Charge Transfer Processes in Star-Shaped Conjugated Molecules

2019 ◽  
Vol 123 (17) ◽  
pp. 11179-11188 ◽  
Author(s):  
Mónica Moral ◽  
Juan Tolosa ◽  
Jesús Canales-Vázquez ◽  
Juan Carlos Sancho-García ◽  
Andrés Garzón-Ruiz ◽  
...  
Keyword(s):  
Experimental Study ◽  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Conjugated Molecules ◽  
Transfer Processes

Photophysical, electrochemical, and spectroelectrochemical investigation of electronic push–pull benzothiadiazole fluorophores

2015 ◽  
Vol 87 (7) ◽  
pp. 649-661 ◽  
Author(s):  
Monika Wałęsa-Chorab ◽  
Marie-Hélène Tremblay ◽  
Mohamed Ettaoussi ◽  
William G. Skene
Keyword(s):  
Thin Films ◽  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Charge Transfer Band ◽  
Aprotic Solvents ◽  
Neutral Form ◽  
Electron Withdrawing Group ◽  
Fluorescence Wavelength ◽  
Stokes Shifts ◽  
Spectroelectrochemical Properties

AbstractTwo electronic push–pull fluorophores consisting of a benzothiadiazole core and a terminal N,N-dimethylamino electron donating group were prepared. The effect of the terminal electron withdrawing group (–NO2 and –CN) on the spectroscopic, electrochemical, and spectroelectrochemical properties were examined. The fluorophores were solvatochromic with Stokes shifts upward of 9000 cm−1 being observed in aprotic solvents of varying polarity. It was found that the fluorophores fluoresced appreciably (86 % > Φfl > 18 %) in hexane, toluene, diethyl ether, dichloromethane, ethyl acetate, and THF. The fluorescence was quenched in acetonitrile, acetone, and DMSO. The fluorophores also fluoresced appreciably in thin films when embedded in poly(methyl methacrylate) and poly(dimethylsiloxane) matrices. Protonating the terminal amine with trifluoroacetic acid quenched the intramolecular charge transfer band, although the fluorophores remained fluorescent. The fluorophores could also be reversibly oxidized electrochemically. The resulting oxidized state was visually different than the neutral form. Electrochemical oxidation also led to reversible changes in both the fluorescence wavelength and intensity.

Cholesterol-tethered AIEE fluorogens: formation of self-assembled nanostructures

RSC Advances ◽  
2015 ◽  
Vol 5 (42) ◽  
pp. 33049-33057 ◽  
Author(s):  
Veerabhadraiah Palakollu ◽  
Sriram Kanvah
Keyword(s):  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Design And Synthesis ◽  
Self Assembling ◽  
Self Assembled

Design and synthesis of cholesterol conjugated chromophores exhibiting intramolecular charge transfer (ICT) and Aggregation Induced Enhanced Emission (AIEE) and their self-assembling behavior is described.

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