Novel N-substituted-5-phenyl-1H-pyrazole-4-ethyl carboxylates as potential NLO materials

B. Chandrakantha, Arun M. Isloor, Kishore Sridharan, Reji Philip, Prakash Shetty, Mahesh Padaki

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In the present investigation we have synthesized a novel series of N-substituted-5-phenyl-1H-pyrazole-4-ethyl carboxylates, which are characterized by 1H NMR, UV-Vis and FT-IR spectroscopy methods. The optical nonlinearity of the compounds in chloroform solution has been studied at 532nm using 5ns laser pulses, employing the open-aperture z-scan technique. It is found that compound 3c having carboxylic acid group and ester substituent has maximum nonlinearity. From measurements we conclude that compounds 3c (4-[4-(ethoxycarbonyl)-5-phenyl-1H-pyrazol-1-yl]benzoic acid) and 3e (ethyl 1-(2-bromophenyl)-5-phenyl-1H-pyrazole-4-carboxylate) are potential candidates for optical limiting applications.

Original languageEnglish
Pages (from-to)97-102
Number of pages6
JournalArabian Journal of Chemistry
Volume6
Issue number1
DOIs
Publication statusPublished - 01-01-2013

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Benzoic acid
Chlorine compounds
Carboxylic acids
Infrared spectroscopy
Laser pulses
Esters
Nuclear magnetic resonance
Benzoic Acid
Chloroform
Carboxylic Acids
pyrazole

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Chandrakantha, B. ; Isloor, Arun M. ; Sridharan, Kishore ; Philip, Reji ; Shetty, Prakash ; Padaki, Mahesh. / Novel N-substituted-5-phenyl-1H-pyrazole-4-ethyl carboxylates as potential NLO materials. In: Arabian Journal of Chemistry. 2013 ; Vol. 6, No. 1. pp. 97-102.
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Novel N-substituted-5-phenyl-1H-pyrazole-4-ethyl carboxylates as potential NLO materials. / Chandrakantha, B.; Isloor, Arun M.; Sridharan, Kishore; Philip, Reji; Shetty, Prakash; Padaki, Mahesh.

In: Arabian Journal of Chemistry, Vol. 6, No. 1, 01.01.2013, p. 97-102.

Research output: Contribution to journalArticle

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T1 - Novel N-substituted-5-phenyl-1H-pyrazole-4-ethyl carboxylates as potential NLO materials

AU - Chandrakantha, B.

AU - Isloor, Arun M.

AU - Sridharan, Kishore

AU - Philip, Reji

AU - Shetty, Prakash

AU - Padaki, Mahesh

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AB - In the present investigation we have synthesized a novel series of N-substituted-5-phenyl-1H-pyrazole-4-ethyl carboxylates, which are characterized by 1H NMR, UV-Vis and FT-IR spectroscopy methods. The optical nonlinearity of the compounds in chloroform solution has been studied at 532nm using 5ns laser pulses, employing the open-aperture z-scan technique. It is found that compound 3c having carboxylic acid group and ester substituent has maximum nonlinearity. From measurements we conclude that compounds 3c (4-[4-(ethoxycarbonyl)-5-phenyl-1H-pyrazol-1-yl]benzoic acid) and 3e (ethyl 1-(2-bromophenyl)-5-phenyl-1H-pyrazole-4-carboxylate) are potential candidates for optical limiting applications.

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