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[1-Hydr­oxy-1-phosphono-2-(trimethyl­phospho­nium-1-yl)eth­yl]phospho­nate monohydrate

✍ Scribed by Cao, Rong ;Hudock, Michael P. ;Zhang, Yonghui ;Wilson, Scott R. ;Oldfield, Eric

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
190 KB
Volume
62
Category
Article
ISSN
1600-5368

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[2-(Dimethyl­sulfonio)-1-hydr­oxy-1-phos
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In the title crystal structure, C 4 H 12 O 7 P 2 SÁH 2 O, the sulfonium groups have a pyramidal geometry and bridging water molecules form a complex three-dimensional hydrogen-bond network involving neighboring phosphonate groups.

1-Hydr­oxy-1-phosphono-2-(trimethylarson
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In the crystal structure of the title compound, C 5 H 15 As-O 7 P 2 ÁH 2 O, hydrogen-bonded sheets are formed which contain bisphosphonate(1À) groups and water molecules alternating with trimethylarsonium groups.

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The title salt, C~8~H~20~NO~5~ ^+^·C~7~H~4~NO~4~ ^−^·H~2~O, is composed of a 4-nitrobenzoate anion, a [2-hydroxy-1,1-bis(hydroxymethyl)ethyl]bis(2-hydroxyethyl)ammonium (NBHHP) cation and a water molecule. The three units are linked by O—H...O hydrogen bonds.