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Full-Text Articles in Chemistry

The Effect Of Ionic Liquid Adsorption On The Electronic And Optical Properties Of Fluorographene Nanosheets, Mehdi Shakourian-Fard, S. Maryamdokht Taimoory, Volodymyr Semeniuchenko, Ganesh Kamath, John F. Trant Oct 2018

The Effect Of Ionic Liquid Adsorption On The Electronic And Optical Properties Of Fluorographene Nanosheets, Mehdi Shakourian-Fard, S. Maryamdokht Taimoory, Volodymyr Semeniuchenko, Ganesh Kamath, John F. Trant

Chemistry and Biochemistry Publications

In the present study, we investigate the adsorption characteristics of six different ionic liquids (ILs) on a fully-fluorinated graphene (fluorographene, FG) surface using electronic structure studies and associated analysis methods. A systematic comparison of differences in IL binding energies (ΔEb) with fluorographene, graphene and hexagonal boron nitride surfaces indicates that fluorination strongly decreases the binding energy compared to the other two surfaces, hence resulting in the binding energetics: ΔEb (Graphene…IL) > ΔEb (Hexagonal boron-nitride…IL) > ΔEb (Fluorographene…IL). To probe the reasons for this difference, quantum theory of atoms in molecules (QTAIM) analysis and non-covalent interactions (NCI) analyses were carried out. Results indicate …


Synthesis And Some Optical Results Of Long Chain Substituted Phthalocyanines, İbrahi̇m Özçeşmeci̇, İdri̇s Sorar Jan 2018

Synthesis And Some Optical Results Of Long Chain Substituted Phthalocyanines, İbrahi̇m Özçeşmeci̇, İdri̇s Sorar

Turkish Journal of Chemistry

Four metallo (zinc, copper, vanadyl, and indium) phthalocyanine derivatives bearing four aliphatic (hexylthio) groups were prepared from corresponding phthalonitrile compounds. The metallophthalocyanines were characterized with ultraviolet–visible spectroscopy (UV-Vis), proton nuclear magnetic resonance (1H NMR), Fourier transform-infrared spectroscopy (FT-IR), and mass and elemental analyses techniques. Aggregation properties of metallophthalocyanines in solution were studied in varied concentration ranges. Thin films of metallophthalocyanines were obtained by spin coating technique. Optical measurements showed that transmittance values of metallophthalocyanine thin films obviously changed with respect to the metal ion in the phthalocyanines. Transmittance spectra of the phthalocyanines synthesized using different metal ions showed a variation …


Electrochemical Polymerization Of A New Alkoxy-Bridged Dithieno (3,2-B:2',3'-D) Pyrrole Derivative, Ari̇f Kivrak, Hüseyi̇n Beki̇r Yildiz, Selahatti̇n Gökyer, Buket Çarbaş Jan 2018

Electrochemical Polymerization Of A New Alkoxy-Bridged Dithieno (3,2-B:2',3'-D) Pyrrole Derivative, Ari̇f Kivrak, Hüseyi̇n Beki̇r Yildiz, Selahatti̇n Gökyer, Buket Çarbaş

Turkish Journal of Chemistry

A novel alkoxy-bridged dithieno (3, 2-B:2',3'-D) pyrrole (DTP) derivative was synthesized and its corresponding polymer poly(1,2-bis(2-(4H-dithieno[3,2-b:2',3'-d]pyrrol-4-yl)ethoxy)ethane) (P(DTP-alkoxy-DTP)) was successfully obtained electrochemically. The effects of alkoxy bridge in the structure on the electrochemical and spectroelectrochemical properties of the polymer were also investigated in detail. The results showed that the polymer film exhibits multielectrochromic behavior and a low band gap of 1.82 eV.