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Wyświetlanie pozycji 1-10 z 59
Who Receives Home-Based Perinatal Palliative Care: Experience from Poland
(Hindawi Publishing Corporation, 2013)
The current literature suggests that perinatal palliative care (PPC) programs should be comprehensive, initiated early,
and integrative. So far there have been very few publications on the subject of home-based PC of ...
Addition of Di(trimethylsilyl) Phosphite to Schiff Bases of 2,5-Diformylfuran
(MedJChem, 2011-11)
A series of 2,5-Furanyl-bis-(aminomethylphosphonic Acids) has been synthesized by the addition of di(trimethylsilyl) phosphite to azomethine bond of achiral Schiff bases derved from 2,5-diformylfuran. The stereochemical ...
Diethyl (1-benzyl-4-phenyl-3-trifluoromethyl-1Hpyrrol-2-yl)phosphonate
(W. T. A. Harrison, University of Aberdeen, Scotland, 2017)
In the title compound, C22H23F3NO3P, the dihedral angles between the pyrrole ring and the benzyl and phenyl rings are 81.38 (7) and 46.21 (8)°, respectively. The ethyl phosphate groups present with P—O—C—C torsion angles ...
1JCH couplings in Group14/IVA tetramethyls from the gas-phase NMR and DFT structural study: a search for the best computational protocol
(The Royal Society of Chemistry, 2014-05-15)
Four tetramethyl compounds EMe4 (E = C, Si, Ge, and Pb) were studied by high-resolution NMR spectroscopy in gaseous and liquid states at 300 K. Extrapolation of experimental vapor-phase C-H J-couplings to a zero-pressure ...
How much do coulombic interactions stabilize a mesophase? Ion pair and non-ionic binary isosteric derivatives of monocarbaborates and carboranes
(Royal Society of Chemistry, 2014)
Replacement of the B− atom in the monocarbaborate anion, 1[10] or 1[12], and the N^+ atom in the pyridinium cation [Pyr] of a liquid crystalline ion pair with C atoms leads to an isoelectronic and isosteric non-ionic binary ...
Investigation of high Δε derivatives of the [closo-1- CB_9H_10] anion for liquid crystal display applications
(Royal Society of Chemistry, 2014)
Two series of polar compounds 3[n] and 4[n] with longitudinal dipole moments ranging from 10 to 17 D were synthesized and investigated as additives to two nematic hosts, ClEster and CinnCN. Compounds 3[n] do not exhibit ...
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. ...