European Journal of Chemistry

Photophysical properties and estimation of ground and excited state dipole moments of 7-diethylamino and 7-diethylamino-4-methyl coumarin dyes from absorption and emission spectra



Main Article Content

Mohd Mudassir Husain
Rajeev Sindhu
Harmesh Chander Tandon

Abstract

In the present work, the effect of solvents on absorption and fluorescence spectra and dipole moments (μg, μe) of 7-diethylamino coumarin (7DEAC) and 7-diethylamino-4-methyl coumarin (7DEA4MC) have been studied in different solvents of various polarity at room temperature. The solvents have been selected in a way to cover the full range of intermolecular interactions from non-polar hexane to strongly polar formamide. Using the methods of solvatochromism, the difference in the first excited singlet-state (μe) and ground state (μg) dipole moments was estimated from Lippert-Mataga, Bakhshiev, Kawski-Chamma-Viallet and McRae equations. The Onsager’s cavity radius of the probes has been calculated by AM1 and PM3 quantum chemical calculations and also by a direct relation. The change in dipole moment value (Δμ) was also calculated by using the variation of Stoke’s shift with microscopic solvent polarity parameter (ETN). The calculated dipole moments represent new results, as well as some of the solvatochromic results that were not studied earlier in such large number of solvents. It is observed that the values of excited singlet-state dipole moments are higher than the ground state ones in both the molecules, which shows that excited states are more polar than the ground states.

3_1_87_93_800


icon graph This Abstract was viewed 2746 times | icon graph Article PDF downloaded 1067 times

How to Cite
(1)
Husain, M. M.; Sindhu, R.; Tandon, H. C. Photophysical Properties and Estimation of Ground and Excited State Dipole Moments of 7-Diethylamino and 7-Diethylamino-4-Methyl Coumarin Dyes from Absorption and Emission Spectra. Eur. J. Chem. 2012, 3, 87-93.

Article Details

Share
Crossref - Scopus - Google - European PMC
References

[1]. Fletcher, A. N.; Bliss, D. E. Appl. Phys. 1978, 16, 289-295.
http://dx.doi.org/10.1007/BF00885124

[2]. Halstead, J. A.; Reeves, R. R. Opt. Commun. 1978, 27, 273-276.
http://dx.doi.org/10.1016/0030-4018(78)90379-6

[3]. Gardecki, J. A.; Maroncelli, M. J. Phys. Chem. 1999, 103, 1187-1197.

[4]. Levinger, N. E. Curr. Opin. Colloid Interf. Sci. 2000, 5, 118-124.
http://dx.doi.org/10.1016/S1359-0294(00)00044-3

[5]. Castner Jr., E. W.; Kennedy, D.; Cave, R. J. J. Phys. Chem. A 2000, 104, 2869-2885.
http://dx.doi.org/10.1021/jp9936852

[6]. Morandeira, A.; Fulrstenberg, A.; Vauthey, E. J. Phys. Chem. A 2004, 108, 8190-8200.
http://dx.doi.org/10.1021/jp048048c

[7]. Kumbhakar, M.; Nath, S.; Mukherjee, T.; Pal, H. J. Chem. Phys. 2004, 121, 6026-6033.

[8]. Schitschek, E. J.; Trias, J. A.; Hammond, P. R.; Henry, R. A.; Atkins, R. L. Opt. Commun. 1976, 16, 313-316.
http://dx.doi.org/10.1016/0030-4018(76)90005-5

[9]. Parkyani, C.; Antonius, M. S.; Aaron, J. J.; Buna, M.; Tine, A.; Cisse L. Spectrosc. Lett. 1994, 27, 439-449.
http://dx.doi.org/10.1080/00387019408007249

[10]. Shermon, W. R.; Robins, E. Anal. Chem. 1968, 40, 803-805.
http://dx.doi.org/10.1021/ac60260a045
PMid:5641323

[11]. Ravi, M.; Soujanya, T.; Samanta. A.; Radhakrishnan, T. P. J. Chem. Soc. Faraday Trans. 1995, 91, 2739-2742.
http://dx.doi.org/10.1039/ft9959102739

[12]. Mannekutla, J. R.; Mulimani, B. G.; Inamdar, S. R. Spectochim. Acta A 2008, 69, 419-426.
http://dx.doi.org/10.1016/j.saa.2007.04.016
PMid:17540614

[13]. Zakerhamidi, M. S.; Ghanadzadeh, A.; Moghadam, M. Spectrochim. Acta A 2011, 78, 961-966.
http://dx.doi.org/10.1016/j.saa.2010.12.002
PMid:21227741

[14]. Inamdar, S. R.; Nadaf, Y. F.; Mulimani, B. G. J. Mol. Struct. 2003, 624, 47-51.

[15]. Kumar, S.; Rao, V. C.; Rastogi, R. C. Spectrochim. Acta Part A 2001, 57, 41-47.
http://dx.doi.org/10.1016/S1386-1425(00)00330-9

[16]. Cremers, D. A.; Windsor, M. W. Chem. Phys. Lett. 1980, 71, 27-32.
http://dx.doi.org/10.1016/0009-2614(80)85283-3

[17]. Balu, W.; Reber, R.; Penzkofer, A. Opt. Commun. 1982, 43, 210-214.
http://dx.doi.org/10.1016/0030-4018(82)90348-0

[18]. Sundstrom, V.; Gillbro, T.; Bergstrom, H. Chem. Phys. 1982, 73, 439-458.
http://dx.doi.org/10.1016/0301-0104(82)85183-5

[19]. Sundstrom, V.; Gilbro, T. Chem. Phys. Lett. 1984, 109, 538-543.
http://dx.doi.org/10.1016/0009-2614(84)85420-2

[20]. Bilot, L.; Kawski, A. Z. Naturforsch. 1962, 179, 621-627

[21]. Kawski, A.; Rabek, J. F. Progress in photochemistry and photophysics, Vol. 5., Boca Raton USA, CRC Press, 1992.

[22]. Kawski, A. Z. Natureforsch. 2002, 57A, 255-262.

[23]. Lippert, E. Z. Naturforch, Part A 1955, 10, 541-545.

[24]. Lippert, E. Elektrochem, Ber. Bunsenges. Phys. Chem. 1957, 61, 962-975.

[25]. Mataga, N.; Kaifu, Y.; Koizumi, M. Bull. Chem. Soc. Jpn. 1956, 29, 465-470.
http://dx.doi.org/10.1246/bcsj.29.465

[26]. Mataga, N.; Kubota, T. Molecular Interactions and Electronic Spectra, Dekker, New York, 1970.

[27]. Bakshiev, N. G. Opt. Spektosk. (USSR) 1964, 16, 821-832.

[28]. Chamma, A.; Viallet, P. C. R. Acad. Sci. Paris, Ser. C 1970, 270, 1901-1904.

[29]. McRae, E. G. J. Phys. Chem. 1957, 61, 562-572.
http://dx.doi.org/10.1021/j150551a012

[30]. Siddlingeshwar, B.; Hanagodimath, S. M.; Kirilova, E. M. J. Quant. Spectrosc. Radiat. Trans. 2011, 112, 448-456.
http://dx.doi.org/10.1016/j.jqsrt.2010.09.001

[31]. Reichardt, C. Solvents and Solvent Effects in Organic Chemistry, VCH, Weinheim, 1988.

[32]. Ravi, M.; Samanta, A.; Radhakrishnan, T. P. J. Phys. Chem. 1994, 98, 9133-9136.
http://dx.doi.org/10.1021/j100088a007

[33]. Hasegawa, M.; Suzuki, Y.; Suzuki, F.; Nakaniski, H. J. Polym. Sci. A 1969, 7, 743-752

[34]. Ghazy, R.; Azim, S. A.; Shaheen, M.; El-Mekawey, F. Spectrochim. Acta A 2004, 60, 187-191.
http://dx.doi.org/10.1016/S1386-1425(03)00205-1

[35]. Zachariasse, K. Private communication, 6th International Conference on Solar Energy and Applied Photochemistry, “Solar’01”, 3-8 April 2001, Cairo.

[36]. Diraison, M.; Millie, P.; Mialoq, Gustavsson, T. Chem. Phys. Letts. 1998, 282, 152-158.
http://dx.doi.org/10.1016/S0009-2614(97)01194-9

[37]. McCarthy, P. K.; Blanchard, G. J. J. Phys. Chem. 1993, 97, 12205-12209.
http://dx.doi.org/10.1021/j100149a018

[38]. Sharma, V. K.; Saharo, P. D.; Sharma, N.; Rastogi, R. C.; Mohan, D. Spectrochim. Acta A 2003, 59, 1161-1170.
http://dx.doi.org/10.1016/S1386-1425(02)00296-2

[39]. DeMelo, J. S. S.; Becker, R. S.; Mocarita, A. I. J. Phys. Chem. 1994, 98, 6054-6058.
http://dx.doi.org/10.1021/j100075a002

[40]. Gayathri, B. R.; Mannekutla, J. R.; Inamdar, S. R. J. Mol. Struct. 2008, 889, 383-393.
http://dx.doi.org/10.1016/j.molstruc.2008.02.020

[41]. Cisse, L.; Djande, A.; Aaron, J. J. Spectrochim. Acta A 2011, 79, 428-436.
http://dx.doi.org/10.1016/j.saa.2011.02.053
PMid:21511517

Supporting Agencies

University Grant Commission, (F. No. 36-360/2008), Jamia Millia Islamia, New Delhi, India.
Most read articles by the same author(s)
TrendMD

Dimensions - Altmetric - scite_ - PlumX

Downloads and views

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...
License Terms

License Terms

by-nc

Copyright © 2024 by Authors. This work is published and licensed by Atlanta Publishing House LLC, Atlanta, GA, USA. The full terms of this license are available at https://www.eurjchem.com/index.php/eurjchem/terms and incorporate the Creative Commons Attribution-Non Commercial (CC BY NC) (International, v4.0) License (http://creativecommons.org/licenses/by-nc/4.0). By accessing the work, you hereby accept the Terms. This is an open access article distributed under the terms and conditions of the CC BY NC License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited without any further permission from Atlanta Publishing House LLC (European Journal of Chemistry). No use, distribution, or reproduction is permitted which does not comply with these terms. Permissions for commercial use of this work beyond the scope of the License (https://www.eurjchem.com/index.php/eurjchem/terms) are administered by Atlanta Publishing House LLC (European Journal of Chemistry).