Results 81 to 90 of about 26,157 (280)
ChemosensorsThe analysis of intact phosphine ligands and phosphino organometallic complexes by mass spectrometry is problematic due to the reactivity of phosphorous(III) leading to rapid oxidation and decomposition of the ligands and complexes.
Paul J. Gates
doaj +1 more source
Photo- and solvatochromic properties of nitrobenzospiropyran in ionic liquids containing the [NTf2]- anion [PDF]
, 2008 The photo-, thermo- and solvatochromic properties of 2,3-dihydro-10,30,30-trimethyl-6-nitrospiro- [1-benzopyran-2,20-1H-indole] (BSP-NO2) were studied in ILs containing the anion [NTf2]- by UV-Vis absorption spectroscopy, ab initio molecular orbital ...
Byrne, Robert +5 more
core +1 more source
Experimental realization of catalytic CH_4 hydroxylation predicted for an iridium NNC pincer complex, demonstrating thermal, protic, and oxidant stability [PDF]
, 2009 A discrete, air, protic, and thermally stable (NNC)Ir(III) pincer complex was synthesized that catalytically activates the CH bond of methane in trifluoroacetic acid; functionalization using NaIO_4 and KIO_3 gives the oxy ...
Ess, Daniel H. +6 more
core +1 more source
Conductometric Studies of 1-Ethyl-3-methylimidazolium Tetrafluoroborate and 1-Butyl-3-methylimidazolium Tetrafluoroborate in 1-Propanol at Temperatures from (283.15 to 318.15) K [PDF]
, 2014 The electrical conductances of dilute solutions of the ionic liquids 1-ethyl-3-methylimidazolium tetrafluoroborate [emim][BF4] and 1-butyl-3-methylimidazolium tetrafluoroborate [bmim][BF4] in 1-propanol have been measured in the temperature range from ...
Bald, Adam, Boruń, Agnieszka
core
Proceedings of the Thirteenth International Conference on Time-Resolved Vibrational Spectroscopy [PDF]
, 2007 The thirteenth meeting in a long-standing series of “Time-Resolved Vibrational Spectroscopy” (TRVS) conferences was held May 19th to 25th at the Kardinal Döpfner Haus in Freising, Germany, organized by the two Munich Universities - Ludwig-Maximilians ...
Laubereau, Alfred +2 more
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MoleculesIn a search for dyes photoactivatable with visible light, fluorenes with substituents at positions 2 and 7 were prepared, and their absorption and emission spectra were studied.
Andrei I. Savchenko +3 more
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The influence of mixed solvents volatility on charge state distribution of peptides during positive electrospray ionization mass spectrometry [PDF]
, 2017 Understanding the mechanisms that control and concentrate the observed electrospray ionisation (ESI) response from peptides is important. Controlling these mechanisms can improve signal-to-noise ratio in the mass spectrum, and enhances the generation of ...
Abaye, Daniel A. +2 more
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International Journal of Electrochemistry, 2019 Current-voltage characteristics of few-layer graphene structures (FLGS) obtained by plasma-assisted electrochemical exfoliation of graphite in Na2SO4 solution were measured.
Vladimir P. Vasiliev +2 more
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Bulletin of the Korean Chemical Society, EarlyView.Mechanistic studies reveal that hexafluoroisopropanol (HFIP) enables C–Cl activation of propargylic halides by stabilizing ion pairs and enhancing effective Brønsted acidity. This cooperative solvent effect allows access to cationic intermediates and promotes cascade formation of tetrahydroquinolines through cyclization and disproportionation ...
Seung Hoon Lee, Hyung Min Chi
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2015 Iodide-containing nitro-Grela-type catalysts have been synthesized and applied to ring closing metathesis (RCM) and cross metathesis (CM) reactions. These new catalysts have exhibited improved efficiency in the transformation of sterically, non-demanding
Andrzej Tracz +3 more
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