(E)-2-(4-Bromobenzylidene)indan-1-one
نویسندگان
چکیده
In the title compound, C(16)H(11)BrO, the dihydro-indene ring system is approximately planar, with a maximum deviation of 0.008 (2) Å. The mean plane of this ring system forms a dihedral angle of 3.73 (11)°, with the bromo-substituted benzene ring. In the crystal, weak inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into sheets parallel to the ab plane and further stabilization is provided by weak C-H⋯π inter-actions involving the bromo-substituted benzene rings.
منابع مشابه
(2E)-2-(4-Bromobenzylidene)-2,3-dihydro-1H-inden-1-one
The title indan-1-one derivative, C(16)H(11)BrO, is planar, the r.m.s. deviation for all 18 non-H atoms being 0.071 Å. The configuration about the C=C bond [1.337 (5) Å] is E. In the crystal, supra-molecular layers in the ab plane are formed by C-H⋯O inter-actions, involving the bifurcated carbonyl O atom, as well as C-H⋯π inter-actions. The studied crystal was an inversion twin.
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In the title mol-ecule, C(17)H(11)F(3)O, the indan ring system and the trifluoro-methyl-substituted benzene ring are approximately individually planar and form a dihedral angle of 1.81 (5)° with each other. In the crystal, mol-ecules are linked by pairs of weak bifurcated (C-H)(2)⋯O hydrogen bonds to form centrosymmetric dimers, generating R(2) (1)(6) and R(2) (2)(10) ring motifs. These dimers ...
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In the title compound, C(17)H(14)O(2), the indan-1-one system is almost planar (r.m.s. deviation = 0.007 Å) and the benzene ring is twisted out of its plane by 8.15 (6)°. The conformation about the C=C double bond [1.348 (2) Å] is E. Helical supra-molecular chains along [010] feature in the crystal packing; these are sustained by C-H⋯O hydrogen bonds and π-π inter-actions between translationall...
متن کامل5-Bromo-3-(indan-1-yloxy)pyridin-2-amine
The title compound, C(14)H(13)BrN(2)O, was obtained by reaction of indan-1-yl methane-sulfonate with 2-amino-5-bromo-pyridin-3-ol in the presence of caesium carbonate. The indane ring system is approximately planar [all but one of the C atoms are coplanar within 0.03 Å, the latter atom being displaced by 0.206 (2) Å from the mean plane through the remaining atoms] and forms a dihedral angle of ...
متن کامل4-{[(1S,2R)-2-Hydroxyindan-1-yl]amino}pent-3-en-2-one
In the mol-ecule of the title compound, C(14)H(17)NO(2), the dihedral angle formed by the mean planes through the indan ring system and the amino-pentenone fragment is 83.26 (13)°. An intra-molecular N-H⋯O hydrogen bond is observed. In the crystal, mol-ecules are linked into one-dimensional chains extending along the [010] direction via O-H⋯O and C-H⋯O hydrogen bonds.
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