Photophysical and Electrochemical Properties of New Bacteriochlorins and Characterization of Radical Cation and Radical Anion Species

2002 ◽  
Vol 106 (20) ◽  
pp. 5105-5113 ◽  
Author(s):  
Shunichi Fukuzumi ◽  
Kei Ohkubo ◽  
Yihui Chen ◽  
Ravindra K. Pandey ◽  
Riqiang Zhan ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Radical Cation ◽  
Radical Anion ◽  
Anion Species

scholarly journals Electrochemical Properties of Lipid Membranes Self-Assembled from Bicelles

Membranes ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 11
Author(s):  
Damian Dziubak ◽  
Kamil Strzelak ◽  
Slawomir Sek
Keyword(s):  
Electrochemical Properties ◽  
Self Assembly ◽  
Lipid Membranes ◽  
Lipid Membrane ◽  
Membrane Resistance ◽  
Electrochemical Characteristics ◽  
Freeze Thaw ◽  
Lipid Films ◽  
Supported Lipid Membranes

Supported lipid membranes are widely used platforms which serve as simplified models of cell membranes. Among numerous methods used for preparation of planar lipid films, self-assembly of bicelles appears to be promising strategy. Therefore, in this paper we have examined the mechanism of formation and the electrochemical properties of lipid films deposited onto thioglucose-modified gold electrodes from bicellar mixtures. It was found that adsorption of the bicelles occurs by replacement of interfacial water and it leads to formation of a double bilayer structure on the electrode surface. The resulting lipid assembly contains numerous defects and pinholes which affect the permeability of the membrane for ions and water. Significant improvement in morphology and electrochemical characteristics is achieved upon freeze–thaw treatment of the deposited membrane. The lipid assembly is rearranged to single bilayer configuration with locally occurring patches of the second bilayer, and the number of pinholes is substantially decreased. Electrochemical characterization of the lipid membrane after freeze–thaw treatment demonstrated that its permeability for ions and water is significantly reduced, which was manifested by the relatively high value of the membrane resistance.

scholarly journals Synthesis and characterization of an electron-deficient conjugated polymer based on pyridine-flanked diketopyrrolopyrrole

RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12995-13003
Author(s):  
Jialin Yang ◽  
Li Yang ◽  
Qianqian Chen ◽  
Keke Guo ◽  
Ji-Min Han
Keyword(s):  
Conjugated Polymers ◽  
Electrochemical Properties ◽  
Conjugated Polymer ◽  
Synthesis And Characterization

We report a pyridine-flanked diketopyrrolopyrrole monomer and all-acceptor conjugated polymers synthesized therefrom. Photophysical, thermal and electrochemical properties of the polymers have been determined.

scholarly journals Easy preparation of graphite-containing gel electrolytes using a gelator and characterization of their electrochemical properties

2017 ◽  
Vol 15 (3) ◽  
pp. 214-221 ◽  
Author(s):  
Zhong Wang ◽  
Seiya Fujisawa ◽  
Masahiro Suzuki ◽  
Kenji Hanabusa
Keyword(s):  
Electrochemical Properties ◽  
Gel Electrolytes

Synthesis and characterization of periphery-functionalized porphyrazines containing mixed pyrrolyl and pyridylmethylamino groups

2009 ◽  
Vol 13 (02) ◽  
pp. 223-234 ◽  
Author(s):  
Tomasz Goslinski ◽  
Ewa Tykarska ◽  
Wojciech Szczolko ◽  
Tomasz Osmalek ◽  
Aleksandra Smigielska ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Chemical Sensors ◽  
Electronic Materials ◽  
Condensation Reaction ◽  
Synthesis And Characterization ◽  
X Ray ◽  
Coordination Properties ◽  
Perpendicular Orientation ◽  
Selective Sensor

The condensation reaction of 2-amino-3-[(3-pyridylmethyl)amino]-2(Z)-butene-1,4-dinitrile with a series of diketones led to novel dinitriles, of which 2-(2,5-dimethyl-1H-pyrrol-1-yl)-3-[methyl(3-pyridylmethylene)amino]-2(Z)-butene-1,4-dinitrile, the product of the Paal-Knorr reaction, was successfully utilized in the Linstead macrocyclization towards symmetrical and unsymmetrical porphyrazines. NMR and X-ray study revealed an almost perpendicular orientation of the pyrrolyl groups in relation to the porphyrazine platform. The newly synthesized macrocycles with different peripheral groups show interesting spectroscopic and electrochemical properties. Due to selective sensor/coordination properties they are expected to find applications as chemical sensors and electronic materials.

Synthesis and characterization of thiophene functionalized polystyrene copolymers and their electrochemical properties

2005 ◽  
Vol 54 (12) ◽  
pp. 1599-1605 ◽  
Author(s):  
Elif Sahin ◽  
Pinar Camurlu ◽  
Levent Toppare ◽  
Viorela M Mercore ◽  
Ioan Cianga ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Synthesis And Characterization

Generation and Characterization of the Tris(pentafluorophenyl)borane Radical Anion

2001 ◽  
Vol 20 (17) ◽  
pp. 3818-3820 ◽  
Author(s):  
Rebecca J. Kwaan ◽  
C. Jeff Harlan ◽  
Jack R. Norton
Keyword(s):  
Radical Anion

Cymantrene Radical Cation Family: Spectral and Structural Characterization of the Half-Sandwich Analogues of Ferrocenium Ion

2008 ◽  
Vol 130 (30) ◽  
pp. 9859-9870 ◽  
Author(s):  
Derek R. Laws ◽  
Daesung Chong ◽  
Karen Nash ◽  
Arnold L. Rheingold ◽  
William E. Geiger
Keyword(s):  
Radical Cation ◽  
Structural Characterization ◽  
Half Sandwich
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