3,3′:5,6-Di-O-isopropyl­idene-3-C-hydroxy­methyl-d-allono-1,4-lactone: an organic structure containing large unoccupied voids

Simone, M.; Fleet, G.W.J.; Watkin, D.J.

doi:10.1107/S1600536807002061

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 3
Oblique packing diagram of the title compound, showing the hydrogen-bonded helix which is the main structural feature. The ends of one turn of the helix are coloured blue and purple. Operators involved in forming the helix are: (i) x, y, z + 1; (ii) −y + 1, x, z + $[{1\over 4}]$ ; (iii) −x + 1, −y + 1, z + $[{1\over 2}]$ ; (iv) y, −x + 1, z − $[{1\over 4}]$ ; (v) y, −x + 1, z + $[{3\over 4}]$ . Hydrogen bonds are drawn as dotted lines.

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 63| Part 2| February 2007| Pages o799-o801

https://doi.org/10.1107/S1600536807002061

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