The hydrated and anhydrous gold(III) tetra­chloride salts of l-ecgonine, an important forensic toxicology marker for cocaine

Wood, M.R.; Thompson, H.W.; Brettell, T.A.; Lalancette, R.A.

doi:10.1107/S0108270109030583

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 3
The asymmetric unit of (II)

, showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 40% probability level. All C-bound H atoms have been omitted for clarity. The two independent L-ecgonine cations and their tetrachloridoaurate(III) counter-ions are shown. Three symmetry-related atoms are included to show the hydrogen bonding or close contacts. Heavy dashed lines indicate the intramolecular hydrogen bond in each cation and thin solid lines indicate intermolecular hydrogen bonding involving various acceptors. [Symmetry codes: (i) −x + 1, y + $[{1\over 2}]$ , −z + $[{1\over 2}]$ ; (ii) −x + 1, y − $[{1\over 2}]$ , −z + $[{1\over 2}]$ .]

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 66| Part 1| December 2010| Pages m4-m8

doi:10.1107/S0108270109030583

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