D–π–A solvatochromic charge transfer dyes containing a 2-cyanomethylene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran acceptor Export

@article{citeulike:6110085, abstract = {The preparation and solvatochromic behavior of novel, intramolecular charge transfer dyes obtained by the condensation of 2-cyanomethylene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran with 4-dimethylamino benzaldehyde and 9-formyljulolidine are described. The absorption and fluorescence emission spectra of the dyes were studied in solvents of differing polarity. The dyes exhibited positive solvatochromism and their solvatochromic properties are discussed with the aid of semiempirical calculations. The HOMO and LUMO values of the dyes were obtained using both cyclic voltammetry and theoretical calculations; the electrochemical results were in agreement with both observed values and theoretical calculations. pH molecular switching was achieved by modulation of intramolecular charge transfer by means of protonation/deprotonation in DMSO solution.}, author = {Kim, Sung-Hoon and Lee, Sue-Yoen and Gwon, Seon-Yeong and Son, Young-A and Bae, Jin-Seok}, citeulike-article-id = {6110085}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.dyepig.2009.07.012}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S0143720809001600}, doi = {10.1016/j.dyepig.2009.07.012}, issn = {01437208}, journal = {Dyes and Pigments}, keywords = {dcdhf, fluorophores, solvatochromism}, month = {February}, number = {2}, pages = {169--175}, posted-at = {2009-11-13 18:12:38}, priority = {2}, title = {D–π–A solvatochromic charge transfer dyes containing a 2-cyanomethylene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran acceptor}, url = {http://dx.doi.org/10.1016/j.dyepig.2009.07.012}, volume = {84}, year = {2010} }

TY - JOUR ID - citeulike:6110085 L3 - citeulike-article-id:6110085 N2 - The preparation and solvatochromic behavior of novel, intramolecular charge transfer dyes obtained by the condensation of 2-cyanomethylene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran with 4-dimethylamino benzaldehyde and 9-formyljulolidine are described. The absorption and fluorescence emission spectra of the dyes were studied in solvents of differing polarity. The dyes exhibited positive solvatochromism and their solvatochromic properties are discussed with the aid of semiempirical calculations. The HOMO and LUMO values of the dyes were obtained using both cyclic voltammetry and theoretical calculations; the electrochemical results were in agreement with both observed values and theoretical calculations. pH molecular switching was achieved by modulation of intramolecular charge transfer by means of protonation/deprotonation in DMSO solution. IS - 2 JF - Dyes and Pigments SN - 01437208 EP - 175 TI - D–π–A solvatochromic charge transfer dyes containing a 2-cyanomethylene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran acceptor VL - 84 SP - 169 KW - dcdhf KW - fluorophores KW - solvatochromism AU - Kim, Sung-Hoon AU - Lee, Sue-Yoen AU - Gwon, Seon-Yeong AU - Son, Young-A AU - Bae, Jin-Seok PY - 2010/02// UR - http://dx.doi.org/10.1016/j.dyepig.2009.07.012 ER -