Preparation of Oriented Ultrathin Films via Self-Assembly Based on Charge Transfer Interaction between π-Conjugated Poly(dithiafulvene) and Acceptor Polymer

2003 ◽  
Vol 36 (3) ◽  
pp. 533-535 ◽  
Author(s):  
Xiaqin Wang ◽  
Kensuke Naka ◽  
Hideaki Itoh ◽  
Takashi Uemura ◽  
Yoshiki Chujo
Keyword(s):  
Charge Transfer ◽  
Ultrathin Films ◽  
Self Assembly ◽  
Charge Transfer Interaction

scholarly journals Donor–acceptor single cocrystal of coronene and perylene diimide: molecular self-assembly and charge-transfer photoluminescence

RSC Advances ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 2382-2387 ◽  
Author(s):  
Chen Wang ◽  
Jianlin Wang ◽  
Na Wu ◽  
Miao Xu ◽  
Xiaomei Yang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Organic Semiconductor ◽  
Self Assembly ◽  
Perylene Diimide ◽  
Charge Transfer Interaction ◽  
Donor Acceptor

Organic semiconductor molecules, coronene and perylene diimide, form an alternate stacked cocrystal due to the strong donor–acceptor charge transfer interaction.

Fluorescence Quenching of Aminodiphenylamines with Chloromethanes

2002 ◽  
Vol 67 (8) ◽  
pp. 1154-1164 ◽  
Author(s):  
Nachiappan Radha ◽  
Meenakshisundaram Swaminathan
Keyword(s):  
Charge Transfer ◽  
Fluorescence Quenching ◽  
Ground State ◽  
Rate Constants ◽  
Quenching Mechanism ◽  
Quenching Rate ◽  
Charge Transfer Interaction ◽  
Electronically Excited ◽  
A Charge

The fluorescence quenching of 2-aminodiphenylamine (2ADPA), 4-aminodiphenylamine (4ADPA) and 4,4'-diaminodiphenylamine (DADPA) with tetrachloromethane, chloroform and dichloromethane have been studied in hexane, dioxane, acetonitrile and methanol as solvents. The quenching rate constants for the process have also been obtained by measuring the lifetimes of the fluorophores. The quenching was found to be dynamic in all cases. For 2ADPA and 4ADPA, the quenching rate constants of CCl4 and CHCl3 depend on the viscosity, whereas in the case of CH2Cl2, kq depends on polarity. The quenching rate constants for DADPA with CCl4 are viscosity-dependent but the quenching with CHCl3 and CH2Cl2 depends on the polarity of the solvents. From the results, the quenching mechanism is explained by the formation of a non-emissive complex involving a charge-transfer interaction between the electronically excited fluorophores and ground-state chloromethanes.

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