%0 Journal Article %1 azov2003synthesis %A Azov, Vladimir A. %A Diederich, François %A Lill, Yoriko %A Hecht, Bert %D 2003 %J Helv. Chim. Acta %K experiment nano-optics single-molecules spectroscopy %N 6 %P 2149-2155 %R 10.1002/hlca.200390172 %T Synthesis and Conformational Switching of Partially and Differentially Bridged Resorcin4arenes Bearing Fluorescent Dye Labels %V 86 %X We report the synthesis of modified Cram-type cavitands bearing one or two fluorescent labels for single-molecule spectroscopic studies of vase-kite conformational switching. Syntheses were performed by stepwise bridging of the four couples of neighboring H-bonded OH groups of resorcin4arene bowls. The new substitution patterns enable the construction of a large variety of future functional architectures. H-NMR Investigations showed that the new partially and differentially bridged cavitands feature temperature- and pH-triggered vase-kite conformational isomerism similar to symmetrical cavitands with four identical quinoxaline bridges. It was discovered that vase-kite switching of cavitands is strongly solvent-dependent.

@article{azov2003synthesis, abstract = {We report the synthesis of modified Cram-type cavitands bearing one or two fluorescent labels for single-molecule spectroscopic studies of vase-kite conformational switching. Syntheses were performed by stepwise bridging of the four couples of neighboring H-bonded OH groups of resorcin[4]arene bowls. The new substitution patterns enable the construction of a large variety of future functional architectures. H-NMR Investigations showed that the new partially and differentially bridged cavitands feature temperature- and pH-triggered vase-kite conformational isomerism similar to symmetrical cavitands with four identical quinoxaline bridges. It was discovered that vase-kite switching of cavitands is strongly solvent-dependent.}, added-at = {2020-02-19T11:28:01.000+0100}, author = {Azov, Vladimir A. and Diederich, François and Lill, Yoriko and Hecht, Bert}, biburl = {https://www.bibsonomy.org/bibtex/2485efd241433c2d65e8221f18f88bd74/ep5optics}, copyright = {Copyright © 2003 Schweizerische Chemische Gesellschaft, Switzerland}, day = 10, doi = {10.1002/hlca.200390172}, file = {Azov et al. - 2003 - Synthesis and Conformational Switching of Partiall.pdf:C\:\\Users\\scherzad\\Zotero\\storage\\JJGA26R2\\Azov et al. - 2003 - Synthesis and Conformational Switching of Partiall.pdf:application/pdf;Snapshot:C\:\\Users\\scherzad\\Zotero\\storage\\TDFSBIFL\\hlca.html:text/html}, interhash = {e74c639433eb6fd12afed961bc361e76}, intrahash = {485efd241433c2d65e8221f18f88bd74}, issn = {1522-2675}, journal = {Helv. Chim. Acta}, keywords = {experiment nano-optics single-molecules spectroscopy}, language = {en}, month = {07}, number = 6, pages = {2149-2155}, timestamp = {2020-02-19T11:28:01.000+0100}, title = {Synthesis and Conformational Switching of Partially and Differentially Bridged Resorcin[4]arenes Bearing Fluorescent Dye Labels}, urldate = {2020-02-19}, volume = 86, year = 2003 }