Two members of the bis­phospho­nate class of drugs: a zwitterion and a molecular compound

Fernández, D.; Vega, D.; Ellena, J.A.

doi:10.1107/S0108270103007649

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 3
Partial packing diagram for (I

), showing the O—H⋯O (dotted lines) and some of the N—H⋯O (dashed lines) hydrogen bonds. Only the H atoms attached to O and N atoms are shown. Atoms labeled with a prime (′), a hash (#) and an ampersand (&) are at the symmetry positions ( $[{1 \over 2}]$ − x, −y, z − $[{1 \over 2}]$ ), (x − $[{1 \over 2}]$ , $[{1 \over 2}]$ − y, −z) and ( $[{1 \over 2}]$ + x, $[{1 \over 2}]$ − y, −z), respectively.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 59| Part 6| May 2003| Pages o289-o292

doi:10.1107/S0108270103007649

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