title: Synthesis of indolo[3,2-b]carbazole-based new colorimetric receptor for anions: A unique color change for fluoride ions.
abstract: A novel indolocarbazole-based chemosensor 1 containing hydrogen bond donor moieties has been established as a selective colorimetric and fluorometric sensor for F⁻ in CH₃CN/H₂O (4:1 v/v). Upon the addition of a series of tetrabutylammonium salts to receptor 1 in aqueous CH₃CN, only when the counter ion was F⁻ was a significant color change (from light violet to dark orange) observed.
authors.affiliation: Department of Chemistry, Bengal Engineering and Science University, Shibpur, Howrah 711103, India. mahapatra574@gmail.com
authors.forename: Ajit Kumar
authors.initials: AK
authors.lastname: Mahapatra
authors.forename: Giridhari
authors.initials: G
authors.lastname: Hazra
authors.forename: Prithidipa
authors.initials: P
authors.lastname: Sahoo