DETERMINATION OF PROLINE IN MIXTURES CONTAINING l- AND dl-PROLINE
نویسندگان
چکیده
منابع مشابه
DL-Proline.
In the structure of DL-proline, C5H9NO2, the molecules are connected via classical intermolecular N-H...O hydrogen bonds involving the amine and carboxyl groups [N...O = 2.7129 (15) and 2.8392 (16) A], and form chains along the b-axis direction and parallel to (-101). The chains are linked into sheets via weak non-classical hydrogen bonds. The conformation of the molecule and its packing are no...
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1 7 0 nuclear quadrupole resonance spectra have been measured in an l v O enriched polycristalline sample of DL-proline with the help of 1 H l v O nuclear quadrupole double resonance technique. The results show the presence of eight chemically inequivalent oxygen sites corresponding to four inequivalent proline molecules in the unit cell. The oxygen sites may be grouped into two sets of four si...
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متن کاملOn the Polymorphism of 12-Tungstoborate Heteropolyanion: Structure Determination and Its Functionalization with L-proline
A new structure related to previously reported structure of 12-tungstoborate Keggin-type polyoxometalate, K5[BW12O40], was synthesized and its characterization by single crystal X-ray diffraction shows the polymorph structure. Further attempts have been performed to provide three component compounds based on L-proline, lanthanoid cation and K5[BW12O40] (BW12 (II)) under hydrothermal conditions ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1940
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)73222-5