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Madan S Kumar - One of the best experts on this subject based on the ideXlab platform.

  • crystal structure of 2 hy droxy 2 3 meth oxy phen yl cyclo hex yl meth yl di methyl ammonium Benzoate
    Acta Crystallographica Section E: Crystallographic Communications, 2015
    Co-Authors: Sreedhara Sheshadri, P Nagendra, B P Siddaraju, K H Hemakumar, K Byrappa, N K Lokanath, Madan S Kumar
    Abstract:

    The title compound, C16H26NO2+·C7H5O2−, is a Benzoate Salt of the painkiller Tramadol. The six-membered cyclo­hexane ring of the cation adopts a slightly distorted chair conformation and carries OH and 3-meth­oxy­phenyl substituents at the 2-position and a protonated methyl­aza­niumylmethyl group at the 3-position. In addition, a weak intra­molecular C—H⋯O hydrogen bond is observed in the cation. In the crystal, weak O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds link the components into chains along [010]. A C—H⋯π contact is also observed.

  • Crystal structure of {[2-hydroxy-2-(3-methoxyphenyl)cyclohexyl]methyl}dimethylammonium Benzoate
    International Union of Crystallography, 2015
    Co-Authors: S. N. Sheshadri, P Nagendra, B P Siddaraju, K H Hemakumar, K Byrappa, N K Lokanath, Madan S Kumar
    Abstract:

    The title compound, C16H26NO2+·C7H5O2−, is a Benzoate Salt of the painkiller Tramadol. The six-membered cyclohexane ring of the cation adopts a slightly distorted chair conformation and carries OH and 3-methoxyphenyl substituents at the 2-position and a protonated methylazaniumylmethyl group at the 3-position. In addition, a weak intramolecular C—H...O hydrogen bond is observed in the cation. In the crystal, weak O—H...O, N—H...O and C—H...O hydrogen bonds link the components into chains along [010]. A C—H...π contact is also observed

Jugović Branimir - One of the best experts on this subject based on the ideXlab platform.

  • Corrosion of mild steel with composite polyaniline coatings using different formulations
    'Elsevier BV', 2015
    Co-Authors: Grgur Branimir, Elkais, Ali Ramadan, Gvozdenović, Milica M., Drmanić, Saša Ž., Trišović Tomislav, Jugović Branimir
    Abstract:

    The protective abilities of composite coatings based on electrochemically and chemically formed polyaniline powder against the corrosion of mild steel were investigated. A polyaniline powder has been prepared in the form of an emeraldine base and Benzoate Salt through chemical dedoping and doping. The composite coatings using polyaniline powders, which were obtained through different routes, and base coatings, which were not corrosion-resistant, with different formulations were prepared and applied on mild steelsamples. The corrosion was investigated using an electrochemical impedance technique in 3% NaCl, andthe atmospheric corrosion was assessed in a humidity chamber. Emeraldine-Benzoate Salts, which area chemically synthesized polyaniline, offer the best protection with an optimal polyaniline concentration of approximately 5 wt%. The different corrosion behaviors were assessed relative to the presence of aniline oligomers in the samples after characterization using UV-vis spectrophotometry. Upon comparison between the corrosion behavior in 3% NaCl with commercial primer paint for iron and that with apaint containing 5 wt% PANI, the composite coating has superior anticorrosion characteristics. The mech-anism for the protection of mild steel from corrosion through composite polyaniline coatings was also considered. © 2014 Elsevier B.V. All rights reserved

  • Corrosion of mild steel with composite polyaniline coatings using different formulations
    'Elsevier BV', 2015
    Co-Authors: Grgur Branimir, Elkais, Ali Ramadan, Trišović Tomislav, Gvozdenović Milica, Drmanić Saša, Jugović Branimir
    Abstract:

    The protective abilities of composite coatings based on electrochemically and chemically formed polyaniline powder against the corrosion of mild steel were investigated. A polyaniline powder has been prepared in the form of an emeraldine base and Benzoate Salt through chemical dedoping and doping. The composite coatings using polyaniline powders, which were obtained through different routes, and base coatings, which were not corrosion-resistant, with different formulations were prepared and applied on mild steel samples. The corrosion was investigated using an electrochemical impedance technique in 3% NaCl, and the atmospheric corrosion was assessed in a humidity chamber. Emeraldine-Benzoate Salts, which are a chemically synthesized polyaniline, offer the best protection with an optimal polyaniline concentration of approximately 5 wt%. The different corrosion behaviors were assessed relative to the presence of aniline oligomers in the samples after characterization using UV-vis spectrophotometry. Upon comparison between the corrosion behavior in 3% NaCl with commercial primer paint for iron and that with a paint containing 5 wt% PANI, the composite coating has superior anticorrosion characteristics. The mechanism for the protection of mild steel from corrosion through composite polyaniline coatings was also considered

Grgur Branimir - One of the best experts on this subject based on the ideXlab platform.

  • Corrosion of mild steel with composite polyaniline coatings using different formulations
    'Elsevier BV', 2015
    Co-Authors: Grgur Branimir, Elkais, Ali Ramadan, Gvozdenović, Milica M., Drmanić, Saša Ž., Trišović Tomislav, Jugović Branimir
    Abstract:

    The protective abilities of composite coatings based on electrochemically and chemically formed polyaniline powder against the corrosion of mild steel were investigated. A polyaniline powder has been prepared in the form of an emeraldine base and Benzoate Salt through chemical dedoping and doping. The composite coatings using polyaniline powders, which were obtained through different routes, and base coatings, which were not corrosion-resistant, with different formulations were prepared and applied on mild steelsamples. The corrosion was investigated using an electrochemical impedance technique in 3% NaCl, andthe atmospheric corrosion was assessed in a humidity chamber. Emeraldine-Benzoate Salts, which area chemically synthesized polyaniline, offer the best protection with an optimal polyaniline concentration of approximately 5 wt%. The different corrosion behaviors were assessed relative to the presence of aniline oligomers in the samples after characterization using UV-vis spectrophotometry. Upon comparison between the corrosion behavior in 3% NaCl with commercial primer paint for iron and that with apaint containing 5 wt% PANI, the composite coating has superior anticorrosion characteristics. The mech-anism for the protection of mild steel from corrosion through composite polyaniline coatings was also considered. © 2014 Elsevier B.V. All rights reserved

  • Corrosion of mild steel with composite polyaniline coatings using different formulations
    'Elsevier BV', 2015
    Co-Authors: Grgur Branimir, Elkais, Ali Ramadan, Trišović Tomislav, Gvozdenović Milica, Drmanić Saša, Jugović Branimir
    Abstract:

    The protective abilities of composite coatings based on electrochemically and chemically formed polyaniline powder against the corrosion of mild steel were investigated. A polyaniline powder has been prepared in the form of an emeraldine base and Benzoate Salt through chemical dedoping and doping. The composite coatings using polyaniline powders, which were obtained through different routes, and base coatings, which were not corrosion-resistant, with different formulations were prepared and applied on mild steel samples. The corrosion was investigated using an electrochemical impedance technique in 3% NaCl, and the atmospheric corrosion was assessed in a humidity chamber. Emeraldine-Benzoate Salts, which are a chemically synthesized polyaniline, offer the best protection with an optimal polyaniline concentration of approximately 5 wt%. The different corrosion behaviors were assessed relative to the presence of aniline oligomers in the samples after characterization using UV-vis spectrophotometry. Upon comparison between the corrosion behavior in 3% NaCl with commercial primer paint for iron and that with a paint containing 5 wt% PANI, the composite coating has superior anticorrosion characteristics. The mechanism for the protection of mild steel from corrosion through composite polyaniline coatings was also considered

Kumar S. M. - One of the best experts on this subject based on the ideXlab platform.

  • Crystal structure of {2-hydroxy-2-(3-methoxyphenyl)cyclohexyl]methyl}dimethylammonium Benzoate
    'International Union of Crystallography (IUCr)', 2015
    Co-Authors: Sheshadri S. N., Nagendra P., Siddaraju B. P., Hemakumar K. H., Byrappa K., Lokanath N. K., Kumar S. M.
    Abstract:

    The title compound, C16H26NO2+center dot-C7H5O2-, is a Benzoate Salt of the painkiller Tramadol. The six-membered cyclohexane ring of the cation adopts a slightly distorted chair conformation and carries OH and 3-methoxyphenyl substituents at the 2-position and a protonated methylazaniumylmethyl group at the 3-position. In addition, a weak intramolecular C-H center dot center dot center dot O hydrogen bond is observed in the cation. In the crystal, weak O-H center dot center dot center dot O, N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds link the components into chains along 010]. A C-H center dot center dot center dot pi contact is also observed

P Nagendra - One of the best experts on this subject based on the ideXlab platform.

  • crystal structure of 2 hy droxy 2 3 meth oxy phen yl cyclo hex yl meth yl di methyl ammonium Benzoate
    Acta Crystallographica Section E: Crystallographic Communications, 2015
    Co-Authors: Sreedhara Sheshadri, P Nagendra, B P Siddaraju, K H Hemakumar, K Byrappa, N K Lokanath, Madan S Kumar
    Abstract:

    The title compound, C16H26NO2+·C7H5O2−, is a Benzoate Salt of the painkiller Tramadol. The six-membered cyclo­hexane ring of the cation adopts a slightly distorted chair conformation and carries OH and 3-meth­oxy­phenyl substituents at the 2-position and a protonated methyl­aza­niumylmethyl group at the 3-position. In addition, a weak intra­molecular C—H⋯O hydrogen bond is observed in the cation. In the crystal, weak O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds link the components into chains along [010]. A C—H⋯π contact is also observed.

  • Crystal structure of {[2-hydroxy-2-(3-methoxyphenyl)cyclohexyl]methyl}dimethylammonium Benzoate
    International Union of Crystallography, 2015
    Co-Authors: S. N. Sheshadri, P Nagendra, B P Siddaraju, K H Hemakumar, K Byrappa, N K Lokanath, Madan S Kumar
    Abstract:

    The title compound, C16H26NO2+·C7H5O2−, is a Benzoate Salt of the painkiller Tramadol. The six-membered cyclohexane ring of the cation adopts a slightly distorted chair conformation and carries OH and 3-methoxyphenyl substituents at the 2-position and a protonated methylazaniumylmethyl group at the 3-position. In addition, a weak intramolecular C—H...O hydrogen bond is observed in the cation. In the crystal, weak O—H...O, N—H...O and C—H...O hydrogen bonds link the components into chains along [010]. A C—H...π contact is also observed