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In the title compound, C7H4BrFO, the benzaldehyde O atom is found to be trans to the 2-bromo substituent. In the crystal, short Br...F inter­actions between the bromine and fluorine substituents are observed at distances of 3.1878 (14), 3.3641 (13) and 3.3675 (14) Å. Offset face-to-face π-stacking inter­actions are also observed for both of the independent mol­ecules in the asymmetric unit running parallel to the crystallographic b axis, characterized by centroid–centroid distances of 3.8699 (2) and 3.8699 (2) Å.

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The title compound, C15H15N, represents an E isomer. The mol­ecule exhibits a minor [9.1 (2)%] disorder with methyl­benzyl­idene and benzyl groups inter­changing their positions. The C=N bond length is 1.292 (2) Å. The mol­ecular geometry is essentially planar, with the maximal twist of 8.5 (3)° for the benzyl group. The herringbone packing arrangement does not exhibit any π-stacking inter­actions.
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