Items where Author is "Gopidas, K. R."

Article

Manoj, N. ; Ajayakumar, G. ; Gopidas, K. R. ; Suresh, C. H. (2006) Structure Absorption Spectra Correlation in a Series of 2,6-Dimethyl-4-arylpyrylium Salts The Journal of Physical Chemistry A, 110 (39). pp. 11338-11345. ISSN 1089-5639

Manoj, N. ; Ajayakumar, G. ; Gopidas, K. R. ; Suresh, C. H. (2006) Structure absorption spectra correlation in a series of 2,6-dimethyl-4-arylpyrylium salts Journal of Physical Chemistry A, 110 (39). pp. 11338-11345. ISSN 1089-5639

Sumalekshmya, S. ; Gopidas, K. R. (2005) Reaction of aromatic amines with Cu(ClO₄)₂ in acetonitrile as a facile route to amine radical cation generation Chemical Physics Letters, 413 (4-6). pp. 294-299. ISSN 0009-2614

Sumalekshmy, S. ; Gopidas, K. R. (2005) Intramolecular charge transfer processes in donor-acceptor substituted vinyltetrahydropyrenes Photochemical & Photobiological Sciences, 4 (7). pp. 539-546. ISSN 1474-905X

Sumalekshmy, S. ; Gopidas, K. R. (2005) Synthesis and photophysical studies of donor-acceptor substituted tetrahydropyrenes New Journal of Chemistry, 29 (2). pp. 325-331. ISSN 1144-0546

Sumalekshmy, S. ; Gopidas, K. R. (2004) Photoinduced intramolecular charge transfer in donor-acceptor substituted tetrahydropyrenes The Journal of Physical Chemistry B, 108 (12). pp. 3705-3712. ISSN 1089-5647

Dileesh, S. ; Gopidas, K. R. (2004) Photoinduced electron transfer in azatriangulenium salts Journal of Photochemistry and Photobiology A: Chemistry, 162 (1). pp. 115-120. ISSN 1010-6030

Gopidas, K. R. ; Whitesell, James K. ; Fox, Marye Anne (2003) Metal-core-organic shell dendrimers as unimolecular micelles Journal of the American Chemical Society, 125 (46). pp. 14168-14180. ISSN 0002-7863

Parui, Partha Pratim ; Halder, Mintu ; Gopidas, K. R. ; Nath, Deb Narayan ; Chowdhury, Mihir (2002) Large magnetic field effect on back electron transfer from uncharged radical to its cationic partner in anionic micelle Molecular Physics, 100 (17). pp. 2895 - 2901. ISSN 0026-8976

Halder, Mintu ; Parui, Partha Pratim ; Gopidas, K. R. ; Nath, Deb Narayan ; Chowdhury, Mihir (2002) Magnetic field control of the back-electron-transfer process following photoinduced electron transfer (piet) in biphenyl/phenylpyrylium salts in SDS micellar medium Journal of Physical Chemistry A, 106 (10). pp. 2200-2206. ISSN 1089-5639

Smithaa, M. A. ; Gopidas, K. R. (2001) Temperature dependence of photoinduced electron transfer in hydrogen-bonded donor-acceptor systems Chemical Physics Letters, 350 (1-2). pp. 86-92. ISSN 0009-2614

Smitha, M. A. ; Prasad, E. ; Gopidas, K. R. (2001) Photoinduced electron transfer in hydrogen bonded donor-acceptor systems. Free energy and distance dependence studies and an analysis of the role of diffusion Journal of the American Chemical Society, 123 (6). pp. 1159-1165. ISSN 0002-7863

Dileesh, S. ; Gopidas, K. R. (2000) Photophysical and electron transfer studies of a stable carbocation Chemical Physics Letters, 330 (3-4). pp. 397-402. ISSN 0009-2614

Prasad, E. ; Gopidas, K. R. (2000) Photoinduced electron transfer in hydrogen bonded donor-acceptor systems. Study of the dependence of rate on free energy and simultaneous observation of the Marcus and Rehm-Weller behaviors Journal of the American Chemical Society, 122 (13). pp. 3191-3196. ISSN 0002-7863

Manoj, N. ; Gopidas, K. R. (1999) Photophysical and electron-transfer properties of a few 2,6-dimethyl-4-arylpyrylium derivatives Journal of Photochemistry and Photobiology A: Chemistry, 127 (1-3). pp. 31-37. ISSN 1010-6030

Manoj, N. ; Gopidas, K. R. (1999) Inclusion complexation of a few pyrylium salts by β-cyclodextrin studied by fluorescence, NMR and laser flash photolysis Physical Chemistry Chemical Physics, 1 (11). pp. 2743-2748. ISSN 1463-9076

Manoj, N. ; Ajit Kumar, R. ; Gopidas, K. R. (1997) Photophysical and electron transfer studies of a few 2,6-dimethyl-4-(alkylphenyl)pyrylium and thiopyrylium derivatives Journal of Photochemistry and Photobiology A: Chemistry, 109 (2). pp. 109-118. ISSN 1010-6030

Manoja, N. ; Gopidas, K. R. (1997) Structure-photophysics correlation in a series of 2,6-dimethyl-4-arylpyrylium derivatives Chemical Physics Letters, 267 (5-6). pp. 567-572. ISSN 0009-2614

Ramaiah, D. ; Muneer, M. ; Gopidas, K. R. ; Das, P. K. ; Rath, N. P. ; George, M. V. (1996) Phototransformations of C-Benzoylaziridines. Dipolarophilic trapping of photogenerated azomethine ylides Journal of Organic Chemistry, 61 (13). pp. 4240-4246. ISSN 0022-3263

Manoj, N. ; Gopidas, K. R. (1995) Triphenylpyrylium-salt-sensitized electron transfer oxygenation of furan derivatives. Product isolation, fluorescence quenching and laser flash photolysis studies Journal of Photochemistry and Photobiology A: Chemistry, 85 (1-2). pp. 53-61. ISSN 1010-6030

Dass, S. ; Muneera, M. ; Gopidas, K. R. (1994) Photocatalytic degradation of wastewater pollutants. Titanium-dioxide-mediated oxidation of polynuclear aromatic hydrocarbons Journal of Photochemistry and Photobiology A: Chemistry, 77 (1). pp. 83-88. ISSN 1010-6030

Gopidas, K. R. ; Bohorquez, M. ; Kamat, P. V. (1994) Interfacial electron transfer in colloidal SnO₂ hydrosols photosensitized by electrostatically and covalently attached ruthenium(II) polypyridine complexes Journal of Physical Chemistry, 98 (14). pp. 3822-3831. ISSN 0022-3654

Gopidas, K. R. ; Kamat, Prashant V. (1993) Photoinduced charge transfer processes in ultrasmall semiconductor clusters. Photophysical properties of CdS clusters in nafion membrane Journal of Chemical Sciences, 105 (6). pp. 505-512. ISSN 0253-4134

Samanta, A. ; Gopidas, K. R. ; Das, P. K. (1993) Facile electron transfer from aromatic triplets to polyaryl carbocations Chemical Physics Letters, 204 (3-4). pp. 269-272. ISSN 0009-2614

Samanta, A. ; Gopidas, K. R. ; Das, P. K. (1993) Carbocationic fluorescence and its efficient electron-transfer quenching Journal of Physical Chemistry, 97 (8). pp. 1583-1588. ISSN 0022-3654

Ramaiah, D. ; Cyr, D. R. ; Barik, R. ; Gopidas, K. R. ; Das, P. K. ; George, M. V. (1992) Physical aspects of N-benzoylaziridine photochemistry: characterization of azomethine ylides and related photointermediates The Journal of Physical Chemistry, 96 (3). pp. 1271-1278. ISSN 0022-3654

Kamat, Prashant V. ; Gopidas, K. R. ; Mukherjee, Tulsi ; Joshi, Vishwas ; Kotkar, Dilip ; Pathak, Vinit S. ; Ghosh, Pushpito K. (1991) Spectral differences between enantiomeric and racemic Ru(bby)₃²⁺ on layered clays: probable causes Journal of Physical Chemistry, 95 (24). pp. 10009-10018. ISSN 0022-3654

Gopidas, K. R. ; Leheny, A. R. ; Caminati, G. ; Turro, Nicholas J. ; Tomalia, Donald A. (1991) Photophysical investigation of similarities between starburst dendrimers and anionic micelles Journal of the American Chemical Society, 113 (19). pp. 7335-7342. ISSN 0002-7863

Gopidas, K. R. ; Bohorquez, Maria ; Kamat, Prashant V. (1990) Photophysical and photochemical aspects of coupled semiconductors: charge-transfer processes in colloidal cadmium sulfide-titania and cadmium sulfide-silver(I) iodide systems Journal of Physical Chemistry, 94 (16). pp. 6435-6440. ISSN 0022-3654

Gopidas, K. R. ; Kamat, Prashant V. (1990) Photophysical behavior of ultrasmall CdSe semiconductor particles in a perfluorosulfonate membrane Materials Letters, 9 (10). pp. 372-378. ISSN 0167-577X

Gopidas, K. R. ; Kamat, Prashant V. (1990) Photochemistry in polymers: photoinduced electron transfer between phenosafranine and triethylamine in perfluorosulfonate membrane Journal of Physical Chemistry, 94 (11). pp. 4723-4727. ISSN 0022-3654

Samanta, A. ; Gopidas, K. R. ; Das, P. K. (1990) Electron acceptor behavior of 9-phenylxanthenium carbocation singlet Chemical Physics Letters, 167 (1-2). pp. 165-169. ISSN 0009-2614

Pratapan, S. ; Ashok, K. ; Gopidas, K. R. ; Rath, N. P. ; Das, P. K. ; George, M. V. (1990) Photorearrangements of bridgehead-aryl-substituted dibenzobarrelenes. Steady-state and laser flash photolysis studies Journal of Organic Chemistry, 55 (4). pp. 1304-1308. ISSN 0022-3263

Gopidas, K. R. ; Kamat, Prashant V. ; George, M. V. (1990) Photochemical processes on oxide surfaces. A diffuse reflectance laser flash photolysis study Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics, 183 (1). pp. 403-409. ISSN 1044-1859

Gopidas, K. R. ; Bohorquez, Maria ; Kamat, Prashant V. (1990) Photophysical and photochemical aspects of coupled semiconductors. Charge-transfer process in colloidal CdS-TiO₂ and CdS-AgI systems Journal of Physical Chemistry, 94 (16). pp. 6435-6440. ISSN 0022-3654

Kamat, Prashant V. ; Gopidas, K. R. ; Dimitrijevic, Nada M. (1990) Picosecond charge transfer processes in ultrasmall CdS and CdSe semiconductor particles Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics, 183 (1). pp. 439-445. ISSN 1044-1859

Gopidas, K. R. ; Kamat, Prashant V. (1989) Photochemistry on surfaces. 4. Influence of support material on the photochemistry of an adsorbed dye Journal of Physical Chemistry, 93 (17). pp. 6428-6433. ISSN 0022-3654

Gopidas, K. R. ; Kamat, Prashant V. (1989) Photophysics and photochemistry of phenosafranin dye in aqueous and acetonitrile solutions Journal of Photochemistry and Photobiology A: Chemistry, 48 (2-3). pp. 291-301. ISSN 1010-6030

Bhattacharyya, K. ; Das, P. K. ; Fessenden, R. W. ; George, M. V. ; Gopidas, K. R. ; Hiratsuka, H. ; Hug, Gordon L. ; Rajadurai, S. ; Samanta, A. (1989) Fluorescence studies of furanoxy radicals: intramolecular and intermolecular processes Journal of the American Chemical Society, 111 (10). pp. 3542-3548. ISSN 0002-7863

Mehta, G. ; Padma, S. ; Karra, S. R. ; Gopidas, K. R. ; Cyr, D. R. ; Das, P. K. ; George, M. V. (1989) Steady-state and laser flash photolysis studies of norbornenobenzoquinones and their Diels-Alder adducts Journal of Organic Chemistry, 54 (6). pp. 1342-1346. ISSN 0022-3263

Gopidas, K. R. ; Kamat, Prashant V. (1989) Photoelectrochemistry in particulate systems. 11. Reduction of phenosafranin dye in colloidal TiO₂ and CdS suspensions Langmuir, 5 (1). pp. 22-26. ISSN 0743-7463

Kamat, Prashant V. ; Gopidas, K. R. ; Weir, D. (1988) Photoelectrochemistry in particulate systems. Photosensitized charge injection into opaque TiO₂ semiconductor powder as probed by time-resolved diffuse reflectance laser flash photolysis Chemical Physics Letters, 149 (5-6). pp. 491-496. ISSN 0009-2614

Gopidas, K. R. ; Cyr, D. R. ; Das, P. K. ; George, Manapurathu Verghese (1987) Photochemical and thermal transformations of 3-benzyl-2(3H)-furanones and related substrates Journal of Organic Chemistry, 52 (25). pp. 5505-5511. ISSN 0022-3263

Kumar, C. V. ; Gopidas, K. R. ; Bhattacharyya, K. ; Das, P. K. ; George, M. V. (1986) Photoinduced ring enlargement reactions of 2H-1,2,4-benzothiadiazine 1,1-dioxides. Steady-state and laser flash photolysis studies Journal of Organic Chemistry, 51 (11). pp. 1967-1972. ISSN 0022-3263

Davis, H. F. ; Lohray, B. B. ; Gopidas, K. R. ; Kumar, C. V. ; Das, P. K. ; George, M. V. (1985) Photoinduced electron-transfer reactions of 2(3H)-furanones and bis(benzofuranones). Spectral and kinetic behavior of radicals and radical cations Journal of Organic Chemistry, 50 (20). pp. 3685-3692. ISSN 0022-3263

Bhattacharyya, K. ; Das, P. K. ; Fessenden, R. W. ; George, M. V. ; Gopidas, K. R. ; Hug, G. L. (1985) Photophysics of furanoxy radicals. Fluorescence and triplet-doublet energy transfer The Journal of Physical Chemistry, 89 (20). pp. 4164-4166. ISSN 0022-3654