5-(3,6-Dibromo-9<i>H</i>-carbazol-9-yl)pentanenitrile

Uludag, Nesimi; Ateş, Murat; Tercan, Barış; Hökelek, Tuncer

doi:10.1107/s1600536811005162

Cited by 2 publications

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“…The functional groups in the modified polymers open the possibility of using such electrocoated polymers serving as electrochemical capacitors 7–9. In previous studies, the electropolymerization of carbazole derivatives was examined with various functional groups, such as the anionic polymerization of 4‐(9‐carbazolyl) methyl styrene,10 poly( N ‐alkyl‐3,6‐carbazoles),11 poly[9‐(4‐vinylbenzyl)‐9 H ‐carbazole],12 poly( N ‐hydroxyl methyl carbazole),13 poly( N ‐vinyl carbazole),14 poly(9‐tosyl‐9 H ‐carbazole‐ co ‐pyrrole),15 5‐(3,6‐dibromo‐9 H ‐carbazole‐9‐yl) pentane nitrile,16 poly(9‐benzyl‐9 H ‐carbazole),17 and poly(9‐tosyl‐9 H ‐carbazole) 18…”

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confidence: 99%

Synthesis of 9‐(4‐nitrophenylsulfonyl)‐9H‐carbazole: Comparison of an impedance study of poly[9‐(4‐nitrophenylsulfonyl)‐9H‐carbazole] on gold and carbon fiber microelectrodes

Ateş

Uludag

2011

J of Applied Polymer Sci

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In this study, 9-(4-nitrophenylsulfonyl)-9Hcarbazole (NPhSCz) monomer was chemically synthesized. The monomer characterization was performed by Fourier transform infrared spectroscopy, 1 H-NMR, and melting point analysis. Two different electropolymerizations of NPhSCz were studied on a gold microelectrode (Au electrode) and carbon fiber microelectrodes (CFMEs) in a 0.1M sodium perchlorate (NaClO 4 )/acetonitrile solution. The electropolymerization experiments were done from 1 to 4 mM. The characterizations of two different modified electrodes of poly[9-(4-nitrophenylsulfonyl)-9H-carbazole] [poly(NPhSCz)] were performed by various techniques, including cyclic voltammetry, scanning electron microscopy-energy-dispersive X-ray analysis, and electrochemical impedance spectroscopy (EIS). The effects of the initial monomer concentrations (1, 2, 3, and 4 mM) were examined by EIS. The capacitive behaviors of the modified electrodes were defined via Nyquist, Bode magnitude, Bode phase, and admittance plots. The variation of the low-frequency capacitance (C LF ) and double-layer capacitance (C dl ) values are presented at different initial monomer concentrations. Poly(NPhSCz)/CFME was more capacitive (C LF ¼ 6.66 F/cm 2 and C dl % 28 mF) than the Au electrode (C LF ¼ 6.53 F/cm 2 and C dl %

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Section: Introductionmentioning

confidence: 99%

Synthesis of 9‐(4‐nitrophenylsulfonyl)‐9H‐carbazole: Comparison of an impedance study of poly[9‐(4‐nitrophenylsulfonyl)‐9H‐carbazole] on gold and carbon fiber microelectrodes

Ateş

Uludag

2011

J of Applied Polymer Sci

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A novel synthesis of 4-toluene 9H-carbazole-9-carbodithioate, electropolymerization and impedance study

Ateş

Uludag²,

Karazehir³

et al. 2014

Express Polym. Lett.

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Among conducting polymers, polycarbazoles are known for their good electro-activity [1,2] and thermal [3][4][5], electrical [6], photo-physical [7], and electrochromic properties [8]. They have been suggested for a number of applications, such as electroluminescent devices [9], sensors [10,11], redox catalysts [12], and electrochromic displays [13]. The functional groups, such as amino, imino and sulfonic groups have been performed for achieving new polymers which meet the criteria of commercial applications [14][15][16]. There are many novel syntheses of functional polycarbazole papers. 3,6-bis (2,3-dihydrothieno [3,4-b] N-(o-ethynyl) Abstract. A novel synthesis of 4-toluene 9H-carbazole-9-carbodithioate (TCzC) was chemically synthesized and characterized by Fourier Transform Infrared (FTIR), proton nuclear magnetic resonance ( 1 H-NMR), and carbon nuclear magnetic resonance ( 13 C-NMR) spectroscopies. Specific (C sp ) and double layer capacitances (C dl ) of the electro-coated poly(carbazole) and poly(TCzC) films were obtained on glassy carbon electrode (GCE) by impedimetric method with DC potential from -0.1 to +1.0 V by increasing potential of 0.2 V. The polymers were characterized by Cyclic voltammetry (CV), Fourier transform infrared reflectance-attenuated total reflection spectroscopy (FTIR-ATR), Atomic force microscopy (AFM), and Electrochemical impedance spectroscopy (EIS). The use of additional variable (DC potential) helped to disambiguate the equivalent circuit model of R (C(R(Q(RW))))(CR).Simulation results were compared with experimental data. In this study, substituted group effects of CS 2 and tosyl on carbazole polymer were investigated by EIS technique. CS 2 group together with tosyl group in the structure of carbazole decreased the specific capacitance value (C sp = 0.43 mF·cm -2 ) compared to PCz (C sp = 1.44 mF·cm -2 ). Electropolymerization formation was seriously affected by substituted groups of CS 2 and tosyl on conjugation system because of the electron donor and acceptor ability.

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5-(3,6-Dibromo-9H-carbazol-9-yl)pentanenitrile

Cited by 2 publications

References 12 publications

Synthesis of 9‐(4‐nitrophenylsulfonyl)‐9H‐carbazole: Comparison of an impedance study of poly[9‐(4‐nitrophenylsulfonyl)‐9H‐carbazole] on gold and carbon fiber microelectrodes

Synthesis of 9‐(4‐nitrophenylsulfonyl)‐9H‐carbazole: Comparison of an impedance study of poly[9‐(4‐nitrophenylsulfonyl)‐9H‐carbazole] on gold and carbon fiber microelectrodes

A novel synthesis of 4-toluene 9H-carbazole-9-carbodithioate, electropolymerization and impedance study

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