56069 20200221144202.0 doi 10.3390/s16050658 sideral 95042 ART-2016-95042 eng Schiller, J. Fluoride anion recognition by a multifunctional urea derivative: An experimental and theoretical study 2016 Access copy available to the general public Unrestricted In this work we demonstrate the ability of a multifaceted N, N'-disubstituted urea to selectively recognize fluoride anion (F-) among other halides. This additional function is now added to its already reported organocatalytic and organogelator properties. The signaling mechanism relies on the formation of a charge-transfer (CT) complex between the urea-based sensor and F- in the ground state with a high association constant as demonstrated by absorption and fluorescence spectroscopy. The nature of the hydrogen bonding interaction between the sensor and F- was established by 1H-NMR studies and theoretical calculations. Moreover, the recovery of the sensor was achieved by addition of methanol. info:eu-repo/grantAgreement/ES/MINECO-FEDER/CTQ2014-59650-P info:eu-repo/grantAgreement/EUR/IEF/PIEF-GA-2013-625064 info:eu-repo/grantAgreement/ES/DGA/E104 info:eu-repo/grantAgreement/ES/CSIC/PIE-201580I010 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.677 2016 INSTRUMENTS & INSTRUMENTATION 10 / 58 = 0.172 2016 Q1 T1 CHEMISTRY, ANALYTICAL 25 / 76 = 0.329 2016 Q2 T1 ELECTROCHEMISTRY 12 / 29 = 0.414 2016 Q2 T2 0.623 2016 Electrical and Electronic Engineering 2016 Q1 Analytical Chemistry 2016 Q2 Atomic and Molecular Physics, and Optics 2016 Q2 Medicine (miscellaneous) 2016 Q2 Instrumentation 2016 Q2 Biochemistry 2016 Q3 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pérez-Ruiz, R. Sampedro, D. (orcid)0000-0001-6832-8983 Marqués-López, E. Universidad de Zaragoza (orcid)0000-0002-5244-9569 Herrera, R.P. Universidad de Zaragoza Díaz, D.D. 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 16, 5 (2016), 658 [12 pp] Sensors Sensors (Switzerland) 1424-8220 3625121 http://zaguan.unizar.es/record/56069/files/texto_completo.pdf Versión publicada 101778 http://zaguan.unizar.es/record/56069/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:56069 articulos driver 2020-02-21-13:09:35 ARTICLE