Cryogenic fluorescence spectroscopy of ionic fluorones in gaseous and condensed phases: New light on their intrinsic photophysics

EK Ashworth, J Langeland, MH Stockett… - The Journal of …, 2022 - ACS Publications
Fluorescence spectroscopy of gas-phase ions generated through electrospray ionization is
an emerging technique able to probe intrinsic molecular photophysics directly without …

Laser-Induced Fluorescence (LIF) spectroscopy of trapped molecular ions in the gas phase

H Dinesan, SS Kumar - Applied spectroscopy, 2022 - journals.sagepub.com
This review focuses on the laser-induced fluorescence (LIF) spectroscopy of trapped gas-
phase molecular ions, a developing field of research. Following a brief description of the …

Fluorescence and electronic action spectroscopy of mass-selected gas-phase fluorescein, 2′, 7′-dichlorofluorescein, and 2′, 7′-difluorofluorescein ions

H Yao, RA Jockusch - The Journal of Physical Chemistry A, 2013 - ACS Publications
2′, 7′-Dichloro-and 2′, 7′-difluorofluoresceins are superior alternatives to
underivatized fluorescein. Although several studies characterizing their condensed-phase …

A fluorescence immunosensor for ochratoxin A based on resonance energy transfer between fluorescein derivative and gold nanoparticles

KV Serebrennikova, AV Samokhvalov… - Journal of Food …, 2022 - Elsevier
The detection of ochratoxin A (OTA), a harmful toxic contaminant of foods causing serious
health problems, is of great importance. Common analytical methods for this purpose are …

[HTML][HTML] Towards understanding of stepwise acid-base dissociation in systems inclined to tautomerism: Nitro derivatives of fluorescein in dimethyl sulfoxide

NO Mchedlov-Petrossyan, TA Cheipesh… - Journal of Molecular …, 2023 - Elsevier
Understanding the dissociation of polyprotic acids in solution is important for many branches
of chemistry and related sciences. A most important and at the same time knotty problem is …

Ionization and tautomerism of methyl fluorescein and related dyes

NO Mchedlov-Petrossyan, TA Cheipesh… - … Acta Part A: Molecular …, 2015 - Elsevier
The protolytic equilibrium of methyl ether of fluorescein is studied in water, aqueous ethanol,
and in other solvents. The constants of the two-step dissociation are determined by …

[HTML][HTML] Protolytic equilibria in organized solutions: ionization and tautomerism of fluorescein dyes and related indicators in cetyltrimethylammonium chloride micellar …

NO Mchedlov-Petrossyan, NA Vodolazkaya - Liquids, 2021 - mdpi.com
Ionic equilibrium of 22 hydroxyxanthenes, including halogen and nitro derivatives of
fluorescein, and their thio-and aza analogues, were studied spectrophotometrically in …

Aminofluoresceins versus fluorescein: ascertained new unusual features of tautomerism and dissociation of hydroxyxanthene dyes in solution

NO Mchedlov-Petrossyan, TA Cheipesh… - The Journal of …, 2019 - ACS Publications
Within the course of this spectroscopic research, we revealed novel features of the protolytic
behavior, which extend the knowledge of the chemistry of xanthene dyes and rationalize the …

Sibling rivalry: intrinsic luminescence from two xanthene dye monoanions, resorufin and fluorescein, provides evidence for excited-state proton transfer in the latter

C Kjær, SB Nielsen, MH Stockett - Physical Chemistry Chemical …, 2017 - pubs.rsc.org
While the emission spectrum of fluorescein monoanions isolated in vacuo displays a broad
and featureless band, that of resorufin, also belonging to the xanthene family, has a sharp …

A quantum-chemical study of tautomeric equilibria of fluorescein dyes in DMSO

AV Lebed, AV Biryukov… - Chemistry of Heterocyclic …, 2014 - Springer
We evaluated the relative thermodynamic stability of various molecular and anionic
tautomers of fluorescein, its 2, 4, 5, 7-tetrabromo derivative (eosin), and also …