Hydrogen-Bond Interaction in Organic Conductors:  Redox Activation, Molecular Recognition, Structural Regulation, and Proton Transfer in Donor−Acceptor Charge-Transfer Complexes of TTF-Imidazole

2007 ◽  
Vol 129 (35) ◽  
pp. 10837-10846 ◽  
Author(s):  
Tsuyoshi Murata ◽  
Yasushi Morita ◽  
Yumi Yakiyama ◽  
Kozo Fukui ◽  
Hideki Yamochi ◽  
...  
2020 ◽  
Vol 18 (1) ◽  
pp. 357-368
Author(s):  
Kaiwen Zheng ◽  
Kai Guo ◽  
Jing Xu ◽  
Wei Liu ◽  
Junlang Chen ◽  
...  

AbstractCatechin – a natural polyphenol substance – has excellent antioxidant properties for the treatment of diseases, especially for cholesterol lowering. Catechin can reduce cholesterol content in micelles by forming insoluble precipitation with cholesterol, thereby reducing the absorption of cholesterol in the intestine. In this study, to better understand the molecular mechanism of catechin and cholesterol, we studied the interaction between typical catechins and cholesterol by the density functional theory. Results show that the adsorption energies between the four catechins and cholesterol are obviously stronger than that of cholesterol themselves, indicating that catechin has an advantage in reducing cholesterol micelle formation. Moreover, it is found that the molecular interactions of the complexes are mainly due to charge transfer of the aromatic rings of the catechins as well as the hydrogen bond interactions. Unlike the intuitive understanding of a complex formed by hydrogen bond interaction, which is positively correlated with the number of hydrogen bonds, the most stable complexes (epicatechin–cholesterol or epigallocatechin–cholesterol) have only one but stronger hydrogen bond, due to charge transfer of the aromatic rings of catechins.


CrystEngComm ◽  
2015 ◽  
Vol 17 (32) ◽  
pp. 6227-6235 ◽  
Author(s):  
Amparo Salmerón-Valverde ◽  
Sylvain Bernès

A series of solvated donor–acceptor organic complexes were shown to slowly release the lattice solvent while the degree of charge transfer decreases steadily. This behavior is not observed in the case of a hydrate.


2019 ◽  
Vol 25 (59) ◽  
pp. 13547-13565 ◽  
Author(s):  
Karlee P. Castro ◽  
Eric V. Bukovsky ◽  
Igor V. Kuvychko ◽  
Nicholas J. DeWeerd ◽  
Yu‐Sheng Chen ◽  
...  

1984 ◽  
Vol 39 (12) ◽  
pp. 1274-1278 ◽  
Author(s):  
M. H. Abdel-Kader ◽  
R. M. Issa ◽  
M. M. Ayad ◽  
M. S. Abdel-Mottaleb

The charge transfer complexes of 2,3- (I) and 2,6-Dimethylnaphthalenes (II) as electron donors with tri- and di-nitrobenzenes as electron acceptors are prepared and investigated by element analysis, IR. 1H nmr and electronic absorption spectroscopy. The results showed that I yields CT complexes of 1:1 type only while II is capable of forming 1 : 1 and 1 : 2 (donor: acceptor) compounds. The spectral characteristics of the CT complexes are pointed out and discussed. The difference in the donor behaviour between I and II is explained in the light of PPP-MO calculations.


2020 ◽  
Vol 8 (43) ◽  
pp. 15199-15207
Author(s):  
Paul Beyer ◽  
Eduard Meister ◽  
Timo Florian ◽  
Alexander Generalov ◽  
Wolfgang Brütting ◽  
...  

Charge transfer complex (CPX) formation at a donor–acceptor interface reduces the amount of Fermi-level pinning induced interfacial charge transfer.


1999 ◽  
Vol 103 (24) ◽  
pp. 4997-5004 ◽  
Author(s):  
Luis Garcia-Rio ◽  
Juan C. Mejuto ◽  
Renata Ciri ◽  
Iva B. Blagoeva ◽  
J. Ramon Leis ◽  
...  

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