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Wyświetlanie pozycji 31-40 z 103
Zwitterionic pyridinium derivatives of [closo-1-CB_9H_10]− and [closo-1-CB_11H_12]− as high Δε additives to a nematic host
(Royal Society of Chemistry, 2013)
Substituted closo-carbaborate–pyridinium zwitterions were prepared in 35–50% yield by reacting 1-amino-closo-1-carbaborates with 4-alkoxypyrylium triflates. Two of the new materials, 1[6]d and 2[10]b, exhibit a high ...
Liquid crystalline radicals: discotic behavior of unsymmetrical derivatives of 1,3,5-triphenyl-6-oxoverdazyl
(The Royal Society of Chemistry, 2013)
A series of six 6-oxoverdazyl (1[10]) substituted with a total of three 3,4,5-tri(decyloxy)phenyl and/or 3,4,5-tri(decylsulfanyl)phenyl groups was investigated by thermal, XRD, spectroscopic, magnetic and photovoltaic ...
Multi-conformer molecules in solutions: an NMR-based DFT/MP2 conformational study of two glucopyranosides of a vitamin E model compound
(The Royal Society of Chemistry, 2016)
Overall conformations of both anomeric per-O-acetylated glucosyl derivatives of 2,2,5,7,8-pentamethylchroman-
6-ol were studied in the context of their high flexibility, on the basis of NMR spectra in CDCl3
solution and ...
Carbon-13 longitudinal relaxation time measurements and DFT-GIAO NMR computations for two ammonium ions of a tetraazamacrocyclic scorpiand system
(Springer Netherlands, 2013)
Spin-lattice relaxation times, T1s, for 13C nuclei in two cations Hn1n+ (n
= 1, 5)of N-(2-amino-ethyl)-cyclam (1, scorpiand) were determined by means
of 13C{1H} NMR experiments in aqueous solution at pH 11.5 and 0.2. ...
Rozwój metod syntezy i badania nad reaktywnością tioketonów funkcjonalizowanych grupą ferrocenylową
(2018-07-17)
Mając na uwadze ciągły wzrost zainteresowania związkami zawierającymi podstawnik ferrocenylowy oraz rosnące znaczenie związków tiokarbonylowych w syntezie organicznej zaprojektowano i zrealizowano cykl badań, w których ...
Chemo- and regioselective [3 + 2]-cycloadditions of thiocarbonyl ylides: crystal structures of trans-8-benzoyl-1,1,3,3-tetramethyl-7-trifluoromethyl-5-thiaspiro[3.4]octan-2-one and trans-3-benzoyl-2,2-diphenyl-4-(trifluoromethyl)tetrahydrothiophene
(International Union of Crystallography, 2018)
8-Phenyl-3,4,6,7,8,8a-hexahydro-1H-pyrrolo[2,1-c][1,4]oxazin-6-one
(International Union of Crystallography, 2011)
6-Amino-2-(pivaloylamino)pyridinium benzoate
(International Union of Crystallography, 2013)
2-Methoxy-3-[(3,4,5-trimethoxyanilino)- methylidene]-3,4-dihydro-2H-1-benzopyran-4-one
(International Union of Crystallography, 2010)
N-[2-(2,2-Dimethylpropanamido)pyrimidin-4-yl]-2,2-dimethylpropanamide n-hexane 0.25-solvate hemihydrate
(International Union of Crystallography, 2013)