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The structures of (E)-6-chloro-3-[2-(4-chlorophenylsulfonyl)ethenyl]-4-chromanone, C17H10Cl2O4S, (E)-6-bromo-3-[2-(4-bromophenylsulfonyl)ethenyl]-4-chromanone, C17H10Br2O4S, and (E)-3-[2-(4-chlorophenylsulfonyl)ethenyl]-6-methoxy-4-chromanone, C18H13ClO5S, display similar bond angles and distances, but differ in the conformations of the ring systems.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks global, I, II, III

CCDC references: 127256; 127257; 127258

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