Hydrogen migration mechanism in chiral lactam formation by X-ray and neutron diffractions
نویسندگان
چکیده
منابع مشابه
Neutron and high-pressure X-ray diffraction study of hydrogen-bonded ferroelectric rubidium hydrogen sulfate.
The pressure- and temperature-dependent phase transitions in the ferroelectric material rubidium hydrogen sulfate (RbHSO4) are investigated by a combination of neutron Laue diffraction and high-pressure X-ray diffraction. The observation of disordered O-atom positions in the hydrogen sulfate anions is in agreement with previous spectroscopic measurements in the literature. Contrary to the mecha...
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15 صفحه اولSmall-angle X-ray and neutron scattering by biological macromolecules.
be 35.1 kJ/mol (8.4 kcal/mol) for formation of the complex and 115.9 kJ/mol(27.7 kcal/mol) for dissociation of the complex. The kinetic results, as well as helping to describe and validate the model of hyaluronate-proteoglycan interaction, are also of value in the design of experiments. In the experiment shown in Fig. 1 equilibrium is only attained after approx. 1-lfh, as monitored by light-sca...
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The short-range order of K P 0 3 glass has been studied by diffraction methods in order to make evident the different behaviour of the P-O bonds within the P 0 4 tetrahedron. The oxygen sites are devided into bridging and terminal (non-bridging) oxygen sites, corresponding to two P 0 bond lengths, the difference of which amounts to 14.5 pm. Previous conclusions about the changes of the P 0 bond...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2002
ISSN: 0108-7673
DOI: 10.1107/s0108767302095673