Gradual change of one- and two-​photon absorption properties in solution-​Protonation of 4-​N,​N-​dimethylamino-​4'-​aminoazobenzene

Fadhil S. Kamounah, Liudmil Antonov, Kenji Kamada, Daniela Nedeltcheva, Koji Ohta

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Linear (one-photon) and nonlinear (two-photon) spectral properties of 4-N,N-dimethylamino-4′-aminoazobenzene have been investigated under protonation in DMSO/water solvent mixtures. Observed spectral changes have been discussed in terms of ammonium–azonium tautomerism. The corresponding tautomeric constants have been determined for the first time for such kind of tautomeric equilibria. The process of protonation leads to changes of the two-photon absorption properties, suggesting that such process could be used as a tool for change of third-order nonlinear optical activity in solution.
OriginalsprogEngelsk
Artikelnummer16
TidsskriftJournal of Photochemistry and Photobiology, A: Chemistry
Vol/bind181
Udgave nummer2-3
Sider (fra-til)274-282
Antal sider9
ISSN1010-6030
DOI
StatusUdgivet - 2006
Udgivet eksterntJa

Emneord

  • Aminoazobenzenes
  • Protonation
  • Ammonium–azonium tautomersim
  • Two-photon absorption
  • Femtosecond Z-scan technique

Citer dette

Kamounah, Fadhil S. ; Antonov, Liudmil ; Kamada, Kenji ; Nedeltcheva, Daniela ; Ohta, Koji. / Gradual change of one- and two-​photon absorption properties in solution-​Protonation of 4-​N,​N-​dimethylamino-​4'-​aminoazobenzene. I: Journal of Photochemistry and Photobiology, A: Chemistry. 2006 ; Bind 181, Nr. 2-3. s. 274-282.
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title = "Gradual change of one- and two-​photon absorption properties in solution-​Protonation of 4-​N,​N-​dimethylamino-​4'-​aminoazobenzene",
abstract = "Linear (one-photon) and nonlinear (two-photon) spectral properties of 4-N,N-dimethylamino-4′-aminoazobenzene have been investigated under protonation in DMSO/water solvent mixtures. Observed spectral changes have been discussed in terms of ammonium–azonium tautomerism. The corresponding tautomeric constants have been determined for the first time for such kind of tautomeric equilibria. The process of protonation leads to changes of the two-photon absorption properties, suggesting that such process could be used as a tool for change of third-order nonlinear optical activity in solution.",
keywords = "Aminoazobenzenes, Protonation, Ammonium–azonium tautomersim, Two-photon absorption, Femtosecond Z-scan technique, Aminoazobenzenes, Protonation, Ammonium–azonium tautomersim, Two-photon absorption, Femtosecond Z-scan technique",
author = "Kamounah, {Fadhil S.} and Liudmil Antonov and Kenji Kamada and Daniela Nedeltcheva and Koji Ohta",
year = "2006",
doi = "10.1016/j.jphotochem.2005.07.025",
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pages = "274--282",
journal = "Journal of Photochemistry and Photobiology, A: Chemistry",
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Gradual change of one- and two-​photon absorption properties in solution-​Protonation of 4-​N,​N-​dimethylamino-​4'-​aminoazobenzene. / Kamounah, Fadhil S.; Antonov, Liudmil; Kamada, Kenji; Nedeltcheva, Daniela ; Ohta, Koji.

I: Journal of Photochemistry and Photobiology, A: Chemistry, Bind 181, Nr. 2-3, 16, 2006, s. 274-282.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Gradual change of one- and two-​photon absorption properties in solution-​Protonation of 4-​N,​N-​dimethylamino-​4'-​aminoazobenzene

AU - Kamounah, Fadhil S.

AU - Antonov, Liudmil

AU - Kamada, Kenji

AU - Nedeltcheva, Daniela

AU - Ohta, Koji

PY - 2006

Y1 - 2006

N2 - Linear (one-photon) and nonlinear (two-photon) spectral properties of 4-N,N-dimethylamino-4′-aminoazobenzene have been investigated under protonation in DMSO/water solvent mixtures. Observed spectral changes have been discussed in terms of ammonium–azonium tautomerism. The corresponding tautomeric constants have been determined for the first time for such kind of tautomeric equilibria. The process of protonation leads to changes of the two-photon absorption properties, suggesting that such process could be used as a tool for change of third-order nonlinear optical activity in solution.

AB - Linear (one-photon) and nonlinear (two-photon) spectral properties of 4-N,N-dimethylamino-4′-aminoazobenzene have been investigated under protonation in DMSO/water solvent mixtures. Observed spectral changes have been discussed in terms of ammonium–azonium tautomerism. The corresponding tautomeric constants have been determined for the first time for such kind of tautomeric equilibria. The process of protonation leads to changes of the two-photon absorption properties, suggesting that such process could be used as a tool for change of third-order nonlinear optical activity in solution.

KW - Aminoazobenzenes

KW - Protonation

KW - Ammonium–azonium tautomersim

KW - Two-photon absorption

KW - Femtosecond Z-scan technique

KW - Aminoazobenzenes

KW - Protonation

KW - Ammonium–azonium tautomersim

KW - Two-photon absorption

KW - Femtosecond Z-scan technique

U2 - 10.1016/j.jphotochem.2005.07.025

DO - 10.1016/j.jphotochem.2005.07.025

M3 - Journal article

VL - 181

SP - 274

EP - 282

JO - Journal of Photochemistry and Photobiology, A: Chemistry

JF - Journal of Photochemistry and Photobiology, A: Chemistry

SN - 1010-6030

IS - 2-3

M1 - 16

ER -