 | Acta Crystallographica Section E Acta Crystallographica Section E CRYSTALLOGRAPHIC COMMUNICATIONS |
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![[Figure 1]](eb2001fig1mag.jpg)
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Figure 1
Perspective views of compounds (I)–(IIIb), showing the atom-numbering schemes. Displacement ellipsoids are drawn at the 50% probability level and H atoms are shown as small spheres of arbitrary radii. Atoms with superscript (i) are at symmetry position (x, −y + ![[{1\over 2}]](teximages/eb2001fi4.gif) , z). The dashed lines indicate the symmetry-independent N+—H⋯O− hydrogen bonds. |
![[Figure 1]](eb2001fig1.jpg)
| CRYSTALLOGRAPHIC COMMUNICATIONS |
ISSN: 2056-9890
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