Estimation of ground- and excited-state dipole moments of 3-acetoacetyl-coumarin derivatives from a solvatochromic shift method based on the solvent polarity parameter

被引：15

作者：

Makhloufi-Chebli, Malika ^{[1
,2
]}

Hamdi, Safouane M. ^{[3
]}

Rabahi, Amal ^{[1
]}

Silva, Artur M. S. ^{[4
,5
]}

Hamdi, Maamar ^{[1
]}

机构：

[1] Univ Sci & Technol, Fac Chim, Lab Chim Organ Appl, El Alia Bab Ezzouar 16111, Alger, Algeria

[2] Univ Mouloud Mammeri, Fac Sci, Dept Chim, Tizi Ouzou 15000, Algeria

[3] CHU Toulouse 3330, Inst Federatif Biol, Lab Biochim Purpan, F-31039 Toulouse 9, France

[4] Univ Aveiro, Dept Chem, P-3810193 Aveiro, Portugal

[5] Univ Aveiro, QOPNA, P-3810193 Aveiro, Portugal

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2013年 / 181卷

关键词：

3-Acetoacetylcoumarin; Benzocoumarin; Fluorescence; Photophysical properties; PROTON-TRANSFER REACTIONS; ENERGY-TRANSFER; FLUORESCENCE; COMPLEXES; TRANSITION; CHEMILUMINESCENCE; MOLECULES; COUMARINS;

D O I：

10.1016/j.molliq.2013.02.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The optical properties of 1 (3-acetoacetylcoumarin), 2 (3-acetoacetylbenzo[f]coumarin) and 3 (3-acetoacetylbenzo[h]coumarin) were investigated by UV/vis absorption and fluorescence spectroscopy in solvents of different polarities at room temperature (298 K). Solvatochromic correlations were used to estimate the ground-state (mu(g)) and excited-state (mu(e)) dipole moments. The excited-state dipole moments for the three molecules were found to be larger than the corresponding ground-state dipole moments. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：89 / 96

页数：8

共 25 条

[1]

[Anonymous], 1992, Progress in Photochemistry and Photophysics

[2] EXCITED-STATE PROTON-TRANSFER REACTIONS .1. FUNDAMENTALS AND INTERMOLECULAR REACTIONS [J].

ARNAUT, LG ;

FORMOSINHO, SJ .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1993, 75 (01) :1-20

[3] Luminescent properties of diketonates of trivalent europium with dimethyl sulfoxide [J].

Brito, HF ;

Malta, OL ;

Menezes, JFS .

JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 303 :336-339

[4] Spectroscopic properties and design of highly luminescent lanthanide coordination complexes [J].

de Sá, GF ;

Malta, OL ;

Donegá, CD ;

Simas, AM ;

Longo, RL ;

Santa-Cruz, PA ;

da Silva, EF .

COORDINATION CHEMISTRY REVIEWS, 2000, 196 :165-195

[5] Chemiluminescence of systems containing lanthanide ions [J].

Elbanowski, M ;

Makowska, B ;

Staninski, K ;

Kaczmarek, M .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2000, 130 (2-3) :75-81

[6] Fluorescence study of 3-acetoacetyl-7-methyl-2H,5H-pyranopyran-2,5-dione: Evidence for the two cis-enol forms? [J].

Ellingsen, G ;

Vercruysse, K ;

Speziale, V ;

Hamdi, M ;

FeryForgues, S .

ACTA CHEMICA SCANDINAVICA, 1997, 51 (04) :521-526

[7] Estimation of dipole moments of some biologically active coumarins by solvatochromic shift method based on solvent polarity parameter, ETN [J].

Evale, Basavaraj G. ;

Hanagodimath, S. M. ;

Khan, Imthyaz Ahmed ;

Kulkarni, ManoharV. .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2009, 73 (04) :694-700

[8] Strong interaction between a fluorescent β-diketone derivative and alkali and alkaline earth cations in solution studied by spectrophotometry [J].

Fery-Forgues, S ;

Lavabre, D ;

Rochal, AD .

NEW JOURNAL OF CHEMISTRY, 1998, 22 (12) :1531-1538

[9] EXCITED-STATE PROTON-TRANSFER REACTIONS .2. INTRAMOLECULAR REACTIONS [J].

FORMOSINHO, SJ ;

ARNAUT, LG .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1993, 75 (01) :21-48

[10]

GIRI R, 1992, CURR SCI INDIA, V62, P522

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