Crystal structures of three functionalized chalcones: 4′-dimethylamino-3-nitrochalcone, 3-dimethylamino-3′-nitrochalcone and 3′-nitrochalcone
نویسندگان
چکیده
منابع مشابه
3-[4-(Dimethylamino)phenyl]-1,5-diphenylpentane-1,5-dione
The asymmetric unit of the title compound, C(25)H(25)NO(2), contains two independent mol-ecules. The crystal packing exhibits weak inter-molecular C-H⋯O, C-H⋯π and π-π inter-actions.
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The azomethine double-bond in the title Schiff base, C(20)H(22)N(4)O, has an E-configuration. The aromatic ring of the benzyl-idene portion (r.m.s. deviation 0.011 Å) and the five-membered pyrazolyl ring (r.m.s. deviation 0.033 Å) form a dihedral angle of 19.0 (1)°. The phenyl substituent is twisted by 55.0 (1)° with respect to the five-membered ring.
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In the title compound, C(17)H(20)N(2)O(3), the morpholine ring is in a slightly distorted chair form. The crystal structure is stabilized by an inter-molecular O-H⋯O hydrogen bond between the H atom of the hydroxyl group and the O atom of a neighbouring carbonyl group. A weak inter-molecular C-H⋯π inter-action is also present.
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Crystallographic Communications
سال: 2020
ISSN: 2056-9890
DOI: 10.1107/s2056989020011858