Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Estimation of Ground-State and Singlet Excited-State Dipole Moments of Substituted Schiff Bases Containing Oxazolidin-2-one Moiety through Solvatochromic Methods Subject The topic of the resource ETN; Ground and excited state dipole moments; Kamlet and Catalan parameters; Solvatochromic method; Stokes shift Description An account of the resource Absorption and fluorescence studies on novel Schiff bases (E)-4-(4-(4-nitro benzylideneamino)benzyl)oxazolidin-2-one (NBOA) and (E)-4-(4-(4-chlorobenzylidene amino)benzyl)oxazolidin-2-one (CBOA) were recorded in a series of twelve solvents upon increasing polarity at room temperature. Large Stokes shift indicates bathochromic fluorescence band for both the molecules. The photoluminescence properties of Schiff bases containing electron withdrawing and donating substituents were analyzed. Intramolecular charge transfer behavior can be studied based on the influence of different substituents in Schiff bases. Changes in position and intensity of absorption and fluorescence spectra are responsible for the stabilization of singlet excited-states of Schiff base molecules with different substituents, in polar solvents. This is attributed to the Intramolecular charge transfer (ICT) mechanism. In case of electron donating (?Cl) substituent, ICT contributes largely to positive solvatochromism when compared to electron withdrawing (?NO2) substituent. Ground-state and singlet excited-state dipole moments of NBOA and CBOA were calculated experimentally using solvent polarity function approaches given by LippertMataga, Bakhshiev, Kawskii-Chamma-Viallet and Reichardt. Due to considerable ?- electron density redistribution, singlet excited-state dipole moment was found to be greater than ground-state dipole moment. Ground-state dipole moment value which was determined by quantum chemical method was used to estimate excited-state dipole moment using solvatochromic correlations. Kamlet-Abboud-Taft and Catalan multiple linear regression approaches were used to study non-specific solute-solvent interaction and hydrogen bonding interactions in detail. Optimized geometry and HOMO-LUMO energies of NBOA and CBOA have been determined by DFT and TD-DFT/PCM (B3LYP/6-311G (d, p)). Mulliken charges and molecular electrostatic potential have also been evaluated from DFT calculations. 2016, Springer Science+Business Media New York. Creator An entity primarily responsible for making the resource Kumari R.; Varghese A.; George L. Source A related resource from which the described resource is derived Journal of Fluorescence, Vol-27, No. 1, pp. 151-165. Publisher An entity responsible for making the resource available Springer New York LLC Date A point or period of time associated with an event in the lifecycle of the resource 2017-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1007/s10895-016-1942-9" target="_blank" rel="noreferrer noopener">https://doi.org/10.1007/s10895-016-1942-9</a> <a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990852944&doi=10.1007%2Fs10895-016-1942-9&partnerID=40&md5=f9b73aea6cc8a60e55a0cf8e546c695e" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990852944&doi=10.1007%2fs10895-016-1942-9&partnerID=40&md5=f9b73aea6cc8a60e55a0cf8e546c695e</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 10530509; PubMed ID: 27704234; CODEN: JOFLE Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Kumari R., Department of Chemistry, Christ University, Bengaluru, 560 029, India; Varghese A., Department of Chemistry, Christ University, Bengaluru, 560 029, India; George L., Department of Chemistry, Christ University, Bengaluru, 560 029, India