Results 121 to 130 of about 4,299 (162)
Magnetic polymeric ionic liquid for both catalysis application and magnetic solid phase extraction approach. [PDF]
Sci RepMaleki B +4 more
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Organic Room Temperature Phosphorescence from BN-Substituted Xanthene Derivatives. [PDF]
Angew Chem Int Ed EnglWatson AER +5 more
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ChemistrySelect, 2023
Abstract Xanthene dyes exhibit remarkable photophysical properties and photostability. Their ability to switch fluorescence on/off depending on the external environment makes them a promising candidate for imaging/sensing/tracking/labeling probes. However, their emission ≤600 nm and Stokes shift ∼34 nm restrict their use in biological
Zeba Khan, Nagaiyan Sekar
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Abstract Xanthene dyes exhibit remarkable photophysical properties and photostability. Their ability to switch fluorescence on/off depending on the external environment makes them a promising candidate for imaging/sensing/tracking/labeling probes. However, their emission ≤600 nm and Stokes shift ∼34 nm restrict their use in biological
Zeba Khan, Nagaiyan Sekar
openaire +1 more source
Xanthene-Bridged Cofacial Bisporphyrins
Inorganic Chemistry, 2000The synthesis and characterization of cofacial bisporphyrins juxtaposed by xanthene-bridged pillars are presented. The one-pot preparation of the xanthene dialdehyde avoids the lengthy bridge synthesis accompanying other cofacial porphyrin systems, thus allowing for the facile preparation of homobimetallic zinc (10), copper (11), and nickel (12 ...
C J, Chang +4 more
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Acta Crystallographica Section C Crystal Structure Communications, 1996
In xanthene-9-carboxylic acid, C14H10O3, hydrogen bonding is of the cyclic dimer type but involves two crystallographically inequivalent molecules and does not occur about a center of symmetry. The carboxylic H atoms are ordered. The dihedral angle (fold angle) of the xanthene core is 14.2 (1) degree for molecule A and 11.3 (2) degrees for molecule B ...
A C, Blackburn, A J, Dobson, R E, Gerkin
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In xanthene-9-carboxylic acid, C14H10O3, hydrogen bonding is of the cyclic dimer type but involves two crystallographically inequivalent molecules and does not occur about a center of symmetry. The carboxylic H atoms are ordered. The dihedral angle (fold angle) of the xanthene core is 14.2 (1) degree for molecule A and 11.3 (2) degrees for molecule B ...
A C, Blackburn, A J, Dobson, R E, Gerkin
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Revista de Chimie, 2008
This paper examined the synthesis pathways for new compounds starting from raw materials on the anhydride type reacting with polyphenols. The compounds have been characterized through spectral analysis, with estimation yields for each reaction. Basic material syntheses are also presented.
Lucian Iscrulescu +4 more
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This paper examined the synthesis pathways for new compounds starting from raw materials on the anhydride type reacting with polyphenols. The compounds have been characterized through spectral analysis, with estimation yields for each reaction. Basic material syntheses are also presented.
Lucian Iscrulescu +4 more
openaire +1 more source
Chromatography of Xanthene Dyes
Nature, 1960RECENTLY, Lima and Pieroni1have directed attention to the heterogeneous character of the dye rose bengal, which, when labelled with iodine-131, is used in tests of hepatic function2,3. Applying the ethanol–ammonia solvent system of Ishida et al. 4, they claim resolution of this dye into four components, three coloured and one colourless.
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Porphyrin Architectures Bearing Functionalized Xanthene Spacers
The Journal of Organic Chemistry, 2002A modular synthetic strategy for the construction of cofacial porphyrin architectures bearing hydrogen-bond synthons on a xanthene platform is presented. The convergent approach is based on a xanthene aldehyde-ester building block that is easily obtainable on a multigram scale with minimal purification.
Christopher J, Chang +2 more
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