The structure of the title compound, H(3)O(+).C(8)H(18)NO(6)P(2)(-), adopts a zwitterionic form containing an alkylammonium group, a hydronium ion, and two negatively charged phosphonate groups. The cycloheptyl side chain adopts a twist-chair conformation. The crystal packing is dominated by an extensive hydrogen-bonding network.
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http://dx.doi.org/10.1107/s0108270102020450 | DOI Listing |
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