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The crystal of benzophenone crown ether acetal, C19H22O4, with an 11-membered ring has two crystallographically independent molecules in the unit cell. The bond lengths and angles in the ring moiety are similar to those of analogous crown ethers. The 11-membered rings are greatly twisted to adopt planar-chiral structures and the unit cell contains two sets of enantiomers.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablock CA4

pdf

Portable Document Format (PDF) file
Supplementary material

CCDC reference: 128762

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