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

doi:10.1016/j.jphotochem.2005.07.025

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 tidsskrift › Tidsskriftartikel › peer review

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.

Originalsprog	Engelsk
Artikelnummer	16
Tidsskrift	Journal of Photochemistry and Photobiology, A: Chemistry
Vol/bind	181
Udgave nummer	2-3
Sider (fra-til)	274-282
Antal sider	9
ISSN	1010-6030
DOI	https://doi.org/10.1016/j.jphotochem.2005.07.025
Status	Udgivet - 2006
Udgivet eksternt	Ja

Emneord

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

Link til dokument

10.1016/j.jphotochem.2005.07.025

Citer dette

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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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volume = "181",

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 tidsskrift › Tidsskriftartikel › peer 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