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Tris{[tris(2-hydroxymethyl)methyl]ammonium}D-3-phosphoglycerate at 150 K and tris(cyclohexylammonium) D-3-phosphoglycerate ethanol solvate at 85 K.
Autorzy
Rok wydania
1998
Czasopismo
Acta Crystallographica Section C: Structural Chemistry
Numer woluminu
C54
Strony
2015-2019
DOI
10.1107/S0108270198007732
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The structures of the D-3-phosphoglycerate trianion in the tris{ [tris(2-hydroxymethyl)methyl]ammonium } salt, 3C4HI2NO~.C3H4OvP 3-, (I), and in the tris(cyclohexyl- ammonium) ethanol solvate, 3C6HI4N+.C3I-I407p3-. - CzHsOH, (II), have been determined by X-ray analyses at 150 and 85 K, respectively. A notable feature of (I) is the shortest P--O(ester) bond [1.607 (2),~,] found so far for the completely ionized phosphate ester group. In contrast, in (II), this bond length is 1.627(2)A, similar to that observed in doubly ionized phosphate ester groups. In (II), the carboxylate group is twisted by -23.5 (4) ° relative to the o~-hydroxyl group, as indicated by the O1---C1---C2---O2 torsion angle, whereas in (I), the O2--C2---C1--O1 system is almost planar. Both crystal structures are stabilized by hydrogen bonds utilizing all N and O ato
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