title: First theophylline-based ratiometric fluorescent synthetic receptor for selective recognition of dihydrogenphosphate and biological phosphate ions.
abstract: We have developed a new ratiometric fluorescent chemosensor 1 based on xanthine alkaloid theophylline moiety for the detection of dihydrogen phosphate and ATP. The chemosensor 1 selectively recognizes tetrabutylammonium dihydrogen phosphate in CH(3)CN/H(2)O (9:1) by exhibiting a significant decrease in the emission of naphthalene and its sensing properties regarding ATP and other related phosphate species were evaluated. The anion binding properties of 1 were evaluated by (1)H NMR, UV-vis, and fluorescence spectroscopic methods.
authors.affiliation: Department of Chemistry, Bengal Engineering and Science University, Shibpur, Howrah 711103, India. akmahapatra_chemistry@becs.ac.in
authors.forename: Ajit K
authors.initials: AK
authors.lastname: Mahapatra
authors.forename: Giridhari
authors.initials: G
authors.lastname: Hazra
authors.forename: Prithidipa
authors.initials: P
authors.lastname: Sahoo
mesh_terms: D000255:Adenosine Triphosphate / Q000032:analysis; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry* / Q000378:metabolism*; D007477:Ions / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010710:Phosphates / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry; D013806:Theophylline / Q000737:chemistry*
chemical_list: D005456:Fluorescent Dyes; D007477:Ions; D010710:Phosphates; D000644:Quaternary Ammonium Compounds; D000255:Adenosine Triphosphate; D013806:Theophylline; C009405:tetrabutylammonium