Prof. M. Dayal P. De Costa
Department of Chemistry
Publications
1,3-Dimethoxy-5-methylene-1,3-cyclohexadiene compounds with Leaving Group at C6 : Generation, Solvolytic Reactivity and their Importance in the Photochemistry of 3,5-diethylbenzyl derivatives”
1,3-Dimethoxy-5-methylene-1,3-cyclohexadiene compounds with Leaving Group at C6 : Generation, Solvolytic Reactivity and their Importance in the Photochemistry of 3,5-diethylbenzyl derivatives”, D. P. De Costa, N. Nowell, A. L. Pincock, J. A. Pincock and S. Rifai,, J. Org. Chem. 65, 4698-4705, 2000.
“Studies of the variation of fluorescence intensity on binding of metal ion with hydroximic acid linked anthracene chromophore”
“Studies of the variation of fluorescence intensity on binding of metal ion with hydroximic acid linked anthracene chromophore”, M.D.P. De Costa, A.S Amarasekera and S. Perera, Proc. Sri Lanka Association for the advancement of Science 56(1), 228, 2000.
“Solvent dependence of exciplex formation between pyrene and methyl 4-cynobenzoate”
“Solvent dependence of exciplex formation between pyrene and methyl 4-cynobenzoate”, M.D.P. De Costa and K.T.D. Abeynayaka, Proc. Sri Lanka Association for the advancement of Science 56(1), 227, 2000
“Photochemistry of aryl tert-butyl Ethers in methanol: the Effectv of Substituents on an excited state cleavage reaction”
“Photochemistry of aryl tert-butyl Ethers in methanol: the Effectv of Substituents on an excited state cleavage reaction”, D. P. De Costa, a. Benette, A. L. Pincock, J.A. Pincock and R. Stefanova., J. Org. Chem. 65, 4162-4168, 2000.
“9-Fluorenyl carbocation: Is it aromatic or antiaromatic?”
“9-Fluorenyl carbocation: Is it aromatic or antiaromatic?”, M.D.P. De Costa and M. De S Boralessa, Proc. Sri Lanka Association for the advancement of Science 56(1), 229, 2000.
”The Norish Type II Photofragmentation of Esters Induced by Intamolecular Electron Transfer”
”The Norish Type II Photofragmentation of Esters Induced by Intamolecular Electron Transfer”, D. P. De Costa, A. K. Benett and J. A. Pincock,, J. Am. Chem. Soc. 121, 3785-3786, 1999.
“Photoinduced intramolecular electron transfer of pyrenyl methyl esters: Medium effects”
“Photoinduced intramolecular electron transfer of pyrenyl methyl esters: Medium effects”, M.D.P. De Costa, Chemistry in Sri Lanka 16(1), 48-49, 1999.
“Further Studies on Photoinduced Intramolecular Electrn Transferof Substituted Benzoate esters of 9-anthracene methanol-II-substituent and Medium Effects”
“Further Studies on Photoinduced Intramolecular Electrn Transferof Substituted Benzoate esters of 9-anthracene methanol-II-substituent and Medium Effects”, D. P. De Costa and K. A. D. Sriyanimallika, J. Natn. Sci. Foundation of Sri Lanka 27(4), 277-291, 1999.
“Photoinduced Intramolecular electron-transfer of 9-anthracene methylbenzoate in micellar solutions”
“Photoinduced Intramolecular electron-transfer of 9-anthracene methylbenzoate in micellar solutions”, M.D.P. De Costa R.C. Wickramage and K.A.D. Sriyani Mallika, Chemistry in Sri Lanka 14(1), 10-12, 1997
“Photoinduced Intramolecular Electron Transfer of Substituted Benzoate Esters of 9-anthracenemethanol in methanol”
“Photoinduced Intramolecular Electron Transfer of Substituted Benzoate Esters of 9-anthracenemethanol in methanol”, D. P. De Costa, P. K. Cumaratunga and K. A. D. Sriyanimallikla, J. Nat. Sci. Coun. Sri Lanka 25(2), 127-139, 1997.
“Substituent Effect on the intramolecular electron transfer antharacene methyl benzoate ester in methanol”
“Substituent Effect on the intramolecular electron transfer antharacene methyl benzoate ester in methanol”, M.D.P. DeCosta, P.K Cumaranatunga and S.Kandiah, Proc. Sri Lanka Association for the advancement of Science 51(1), 428, 1995
“Photoinduced intramolecular of 9-anthracencemethyl esters in aqueous -cyclodextiene”
“Photoinduced intramolecular of 9-anthracencemethyl esters in aqueous -cyclodextiene”, M.D. P. De Costa and P.K. Cumaranatunga, Proc. Sri Lanka Association for the advancement of Science 51(1), 430, 1995.
“Intramolecular electron transfer of 1-cyano naphthylmethyl benzoate in aqueous -cyclodextrine”
“Intramolecular electron transfer of 1-cyano naphthylmethyl benzoate in aqueous -cyclodextrine”, Proc. Sri Lanka Association for the advancement of Science 50(1), 247 1994.
“Development of a low cost voltameter”, M.D.P. De Costa and T Vasanthakumar, Chemistry in Sri Lanka 10,244, 1994.
“A New Oxine Derivative for the determination of aluminum in trace level”
“A New Oxine Derivative for the determination of aluminum in trace level”, M.D.P. De Costa and M.K. Karunarathna, Proc. Sri Lanka Association for the advancement of Science 49(1), 216, 1993.
Substituent and charge Transfer Distribution Effects on the Redox Potentials of Radicals”
Substituent and charge Transfer Distribution Effects on the Redox Potentials of Radicals”, D. P. Costa and J.A. Pincock, P. H, Mile and D. D. M. Wayner, J. Can. Chem. 70, 121, 1992.
“The effect of the medium on the intramolecular electron-transfer of naphthylmethyl benzoate esters”,
“The effect of the medium on the intramolecular electron-transfer of naphthylmethyl benzoate esters”, M.D.P. De Costa and A.N. Ranasinghe, Proc. Sri Lanka Association for the advancement of Science 48(1), 115, 1992
“Photolysis of 9-fluorenyl phenylacetate: A novel photoremovable protecting group for carboxylic acids”
“Photolysis of 9-fluorenyl phenylacetate: A novel photoremovable protecting group for carboxylic acids”, M.D.P. De Costa and K.M.N. de Silva, Proc. Sri Lanka Association for the advancement of Science 48(1), 114, 1992
“Intramolecular Electron Transfer in the Photochemistry of Substituted 1- naphthylmethyl Ester of Benzoic Acids”
“Intramolecular Electron Transfer in the Photochemistry of Substituted 1- naphthylmethyl Ester of Benzoic Acids”. D. P. Costa and J. A. Pincock;. Can. J. Chem. 70, 1879, 1992.
“Control of Product Distribution by Marcus Type Electron-Transfer Rates for the Radical Pair Generated in Benzylic Ester Photochemistry”
“Control of Product Distribution by Marcus Type Electron-Transfer Rates for the Radical Pair Generated in Benzylic Ester Photochemistry”, D. P. Costa and J. A. Pincock, J. Am. Chem. Soc. 111, 8984, 1989.
“Two Dimensional Fluorescence Probes”
“Two Dimensional Fluorescence Probes”, D. P. De Costa, A. P. de Silva and S. T. Pathirana, Journal of Canadian Chemical Society 65, 1416, 1987.
“Structural variation on the electronic spectra of an optical brightener”
“Structural variation on the electronic spectra of an optical brightener”, A.P. de Silva and M.D.P. De Costa, Proc. Sri Lanka Association for the advancement of Science 40(1), 85, 1984
“Simultaneous solvent and structure variation on the fluorescence of an optical brightener”
“Simultaneous solvent and structure variation on the fluorescence of an optical brightener”, M.D.P. De Costa, Proc. Sri Lanka Association for the advancement of Science 40(1), 85, 1984