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Search query: frustrated Lewis pairs
11 articles match your search "frustrated Lewis pairs"Results 1 to 10, sorted by relevance:
research papers
The differences in crystallographic parameters of various phosphine–borane pairs have been described. It was found that truly frustrated Lewis pairs could not be isolated. This report also suggests a revising of the nomenclature of the pairs.
research papers
The molecular structures of trifluoromethyl-substituted triphenylboranes are analysed for systematic trends and compared with structures retrieved from the Cambridge Structural Database.
data reports
The asymmetric unit of the title salt, C12H32N42+·2C18HBF15O−·2.5C6H6, which crystallizes in the triclinic space group P
, comprises two half [C12H32N4]2+ dications, two [C18HBF15O]− anions, and 2.5 molecules of benzene as solvate.
, comprises two half [C12H32N4]2+ dications, two [C18HBF15O]− anions, and 2.5 molecules of benzene as solvate.
crystallization communications
A female-specific lacrimal protein from Syrian hamsters has been crystallized by the sitting-drop vapour-diffusion method. The crystals belonged to space group P212121 and diffraction data were collected to 1.86 Å resolution.
research papers
The crystal structure and biochemical properties of the C-terminal catalytic domain of SSV1 integrase, an archaeal member of the tyrosine recombinase family, are described.
research papers
X-ray diffraction contrast tomography is used to investigate the crystallographic, topological and morphological characteristics of the evolving microstructure in thermally aged strontium titanate samples. The analysis of the 3D structure shows a clear signature of the grain boundary anisotropy, which can be correlated to surface energy anisotropy: the grain boundary orientation distribution function shows an excess of 〈100〉-oriented interfaces with respect to a random structure.
research papers
The unique parameters of the European XFEL enable novel and groundbreaking experiments in matter at extreme conditions at the High Energy Density (HED) scientific instrument. The performance of the HED instrument during its first two years of operation, its scientific remit, as well as ongoing installations towards full operation are presented.
crystallization communications
Autotaxin, a four-domain ∼100 kDa mammalian glycoprotein, was expressed in stably transfected mammalian cells, purified from the medium and crystallized. Diffraction data from micrometre-thick crystal plates were collected on various European synchrotron beamlines and are presented and analysed.
organic compounds
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The title compound, C7H7N·B(C6F5)3·C6H14, was obtained by the stoichiometric reaction of 2-vinylpyridine and tris(pentafluorophenyl)borane in toluene. The formed adduct exhibits a restricted rotation along the B-N bond resulting in an asymmetry, which can be also observed in the 19F NMR spectra. The B-N distance is equivalent to the distances found for 2-methylpyridine and 2-ethylpyridine B(C6F5)3 adducts. For the final refinement, the contributions of disordered solvent molecules were removed from the diffraction data with SQUEEZE in PLATON [van der Sluis & Spek (1990). Acta Cryst. A46, 194-201; Spek (2009). Acta Cryst. D65, 148-155].
research papers
The positions of molecular pairs in structures with Z' = 2 are considered for space groups common for that class of structure in the Cambridge Structural Database.
