title: Signaling preferences of substituted pyrrole coupled six-membered rhodamine spirocyclic probes for Hg(2+) ion detection.
abstract: Two six-membered spirocyclic rhodamine derivatives containing substituted pyrroles (1 and 2) were shown to exhibit preferential dual mode 'turn-on' signaling responses in the presence of Hg(2+) ions through complexation mediated spiro-ring opening. Although the rate of spiro-ring opening mediated through complexation is much slower in these probes in comparison to their five membered analogues, they exhibited a comparable sensitivity in metal ion detection.
authors.affiliation: Colloids and Materials Chemistry Department, CSIR-Institute of Minerals and Materials Technology, P.O.: R.R.L., Bhubaneswar-751 013, Odisha, India. bpbag@immt.res.in.
authors.forename: Biswonath
authors.initials: B
authors.lastname: Biswal
authors.forename: Debajani
authors.initials: D
authors.lastname: Mallick
authors.forename: Bamaprasad
authors.initials: B
authors.lastname: Bag
mesh_terms: D018360:Crystallography, X-Ray; D007477:Ions; D008628:Mercury / Q000737:chemistry*; D008958:Models, Molecular; D015335:Molecular Probes / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry*; D012235:Rhodamines / Q000737:chemistry*; D013141:Spiro Compounds / Q000737:chemistry*
chemical_list: D007477:Ions; D015335:Molecular Probes; D011758:Pyrroles; D012235:Rhodamines; D013141:Spiro Compounds; D008628:Mercury