title: A fluoride selective dipyrromethane-TCNQ colorimetric sensor based on charge-transfer.
abstract: A colorimetric sensor based on dipyrromethane(donor)-7,7',8,8'-tetracyanoquinodimethane (acceptor) charge-transfer compound depicts excellent selectivity for naked-eye as well as spectrophotometric determination of F(-) even in co-existence with other halide ions (Cl(-), Br(-) and I(-)). The sensing mechanism is ascribed to the interrupted charge-transfer between donor-acceptor in the presence of F(-). The sensing on solid support mimics the solution sensing process supported by the reflectance values. Thus this compound has potential for practical applications.
authors.affiliation: Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India. paramjit19in@yahoo.co.in
authors.forename: Paramjit
authors.initials: P
authors.lastname: Kaur
authors.forename: Sandeep
authors.initials: S
authors.lastname: Kaur
authors.forename: Kamaljit
authors.initials: K
authors.lastname: Singh