title: A new family of bis-ureidic receptors for pyrophosphate optical sensing.
abstract: A new family of bis-ureidic receptors (L(1)-L(6)) has been synthesised. The binding properties of L(1)-L(6) towards different anions (acetate, benzoate, glutarate, malonate, dihydrogen phosphate, hydrogen pyrophosphate, triphosphate, AMP and ADP) have been studied by means of (1)H-NMR, UV-Vis and fluorescence spectroscopies and a remarkable affinity for HPpi(3-) has been observed in the case L(3) (in DMSO-d6 and DMSO-d6-5% H2O) which also acts as a fluorimetric chemosensor, even to the naked eye, for this anion. Theoretical calculations helped us explain the binding properties observed.
authors: Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato (CA), 09042, Italy. ccaltagirone@unica.it
authors: Claudia
authors: C
authors: Caltagirone
authors: Carla
authors: C
authors: Bazzicalupi
authors: Francesco
authors: F
authors: Isaia
authors: Mark E
authors: ME
authors: Light
authors: Vito
authors: V
authors: Lippolis
authors: Riccardo
authors: R
authors: Montis
authors: Sergio
authors: S
authors: Murgia
authors: Martina
authors: M
authors: Olivari
authors: Giacomo
authors: G
authors: Picci
mesh_terms: D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D011756:Diphosphates / Q000032:analysis* / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D055620:Optical Phenomena; D014508:Urea / Q000737:chemistry*
chemical_list: D011756:Diphosphates; C107241:diphosphoric acid; D014508:Urea