title: A Fluoro-Chromogenic Sensor Based on Organic Molecular Framework for Cu2+and F-in Aqueous Soluble DMSO.
abstract: The 2,2'-dinaphtholazobenzene molecular framework (P) was designed, synthesized and characterized. Its absorption and fluorescence properties revealed that P is a dual sensor for copper ions (Cu2+) and fluoride ions (F-) in DMSO. The colorimetric activities were clearly visible by naked eye upon the addition of the two ions. Fluorescence quenching and enhancement were observed when Cu2+and F-ions were added respectively. Density Functional Theory (DFT) calculations were carried out to provide an insight into the interaction of guest ions (Cu2+and F-) with P, and to explain how the molecular orbitals were affected. Graphical Abstract ᅟ.
authors.affiliation: Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia. vuahengo@unam.na.|College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China. vuahengo@unam.na.
authors.forename: Veikko
authors.identifier: http://orcid.org/0000-0002-2372-0161
authors.initials: V
authors.lastname: Uahengo
authors.affiliation: Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia.
authors.forename: Bi
authors.initials: B
authors.lastname: Xiong
authors.affiliation: Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia.
authors.forename: Pingping
authors.initials: P
authors.lastname: Zhao
authors.affiliation: Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia.
authors.forename: Ping
authors.initials: P
authors.lastname: Cai
authors.affiliation: Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, 80837, Mauritius.
authors.forename: Lydia
authors.initials: L
authors.lastname: Rhyman
authors.affiliation: Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, 80837, Mauritius.|Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg, 2028, South Africa.
authors.forename: Ponnadurai
authors.initials: P
authors.lastname: Ramasami
authors.affiliation: Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia.
authors.forename: Kai
authors.initials: K
authors.lastname: Hu
authors.affiliation: Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia.
authors.forename: Gongzhen
authors.initials: G
authors.lastname: Cheng
keywords: DFT; Dual sensor; Fluorescence quenching-enhancement; Molecular recognition; Organic molecular framework