title: A new dual fluorogenic and chromogenic "turn-on" chemosensor for Cu²⁺/F⁻ ions.
abstract: Turn "off-on" chemosensor 2-(-2-((3',6'-bis(diethylamino)-3-oxospiro[isoindoline-1,9'-xanthen]-2-yl)imino)ethylidene)-N-phenylhydrazine-1-carbothioamide (RBS) was designed and synthesized. Using the naked eye, RBS showed favorable observation characteristics with both Cu(2+) and F(-) ions. The various modes of sensitivity shown by RBS toward the Cu(2+) and F(-) ions were investigated by spectral techniques, including UV-Vis, fluorescence and (1)H NMR spectroscopy. The Job's plot indicated the formation of 1:1 complex between RBS and Cu(2+)/F(-). The binding constant of the RBS-guest(-) complexes were found to be 1.3×10(4) and 6.2×10(3)M(-1) for the RBS-Cu(2+) and RBS-F(-), respectively.
authors.affiliation: Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764, South Korea.
authors.forename: Hyungwook
authors.initials: H
authors.lastname: Yu
authors.affiliation: Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764, South Korea.
authors.forename: Jae-Young
authors.initials: JY
authors.lastname: Lee
authors.affiliation: Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764, South Korea.
authors.forename: Satheshkumar
authors.initials: S
authors.lastname: Angupillai
authors.affiliation: School of Chemistry Science & Technology, Zhanjiang Normal University, Development Center for New Material Engineering & Technology in Universities of Guangdong, Zhanjiang 524048, PR China. Electronic address: wang_sheng@ymail.com.
authors.forename: Sheng
authors.initials: S
authors.lastname: Wang
authors.affiliation: School of Chemistry Science & Technology, Zhanjiang Normal University, Development Center for New Material Engineering & Technology in Universities of Guangdong, Zhanjiang 524048, PR China.
authors.forename: Shuhang
authors.initials: S
authors.lastname: Feng
authors.affiliation: Graduate School of Environment and Information Sciences Yokohama National University, 79-7 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
authors.forename: Shinya
authors.initials: S
authors.lastname: Matsumoto
authors.affiliation: Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764, South Korea. Electronic address: yason@cnu.ac.kr.
authors.forename: Young-A
authors.initials: YA
authors.lastname: Son
mesh_terms: D015374:Biosensing Techniques / Q000379:methods*; D003300:Copper / Q000032:analysis*; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000737:chemistry*; D005461:Fluorine / Q000032:analysis*; D007211:Indoles / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D012235:Rhodamines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D014966:Xanthenes / Q000737:chemistry*
chemical_list: C000610485:2-(-2-((3',6'-bis(diethylamino)-3-oxospiro(isoindoline-1,9'-xanthen)-2-yl)imino)ethylidene)-N-phenylhydrazine-1-carbothioamide; D005456:Fluorescent Dyes; D007211:Indoles; D012235:Rhodamines; D014966:Xanthenes; D005461:Fluorine; D003300:Copper
keywords: Copper; Dual sensor; Fluoride; Rhodamine B; Thiourea