Source:http://linkedlifedata.com/resource/pubmed/id/11498625
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
Pt 8
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pubmed:dateCreated |
2001-8-10
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pubmed:abstractText |
In the title compound, C(4)H(12)N(2)(2+).2C(8)H(7)O(3)(-).2CH(4)O, the cations lie across centres of inversion and are disordered over two orientations with equal occupancy; there are equal numbers of (R)- and (S)-mandelate anions present (mandelate is alpha-hydroxybenzeneacetate). The anions and the neutral water molecules are linked by O-H...O hydrogen bonds [O...O 2.658 (3) and 2.682 (3) A, and O-H...O 176 and 166 degrees] into deeply folded zigzag chains. Each orientation of the cation forms two symmetry-related two-centre N-H...O hydrogen bonds [N...O 2.588 (4) and 2.678 (4) A, and N-H...O 177 and 171 degrees] and two asymmetric, but planar, three-centre N-H...(O)(2) hydrogen bonds [N...O 2.686 (4)-3.137 (4) A and N-H...O 137-147 degrees], and by means of these the cations link the anion/water chains into bilayers.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0108-2701
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
57
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
955-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:11498625-Crystallography, X-Ray,
pubmed-meshheading:11498625-Hydrogen Bonding,
pubmed-meshheading:11498625-Mandelic Acids,
pubmed-meshheading:11498625-Methanol,
pubmed-meshheading:11498625-Models, Molecular,
pubmed-meshheading:11498625-Piperazines,
pubmed-meshheading:11498625-Solvents
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pubmed:year |
2001
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pubmed:articleTitle |
Hydrogen-bonded bilayers in piperazinium(2+) bis(mandelate) bis(methanol) solvate.
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pubmed:affiliation |
School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST, Scotland.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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