2,3-Dibromo-3aH,5H-4-oxa-9b-aza-cyclopenta[a]naphthalene-1-one
نویسندگان
چکیده
منابع مشابه
3H-2,1-Benzoxaborole-1-spiro-4′-(5-oxa-3a-aza-4-borapyrene)
In the title compound, C(20)H(14)BNO(2), the B atom has a tetra-hedral geometry with two short B-O and two long B-C and B-N bonds, revealing a significant difference between C(ar)-O-B and C(alk-yl)-O-B bond distances. Inter-molecular Ar-H⋯O hydrogen bonds and strong π-π inter-actions (3.368 Å) between aromatic cores of neighbouring mol-ecules result in hexa-gonal channels along the crystallogra...
متن کامل2,3-Dibromo-1,3-bis(4-chlorophenyl)propan-1-one
In the title compound, C(15)H(10)Br(2)Cl(2)O, the terminal benzene rings make a dihedral angle of 31.1 (2)° with each other. In the crystal, mol-ecules are stacked along the a axis and consolidated by C-H⋯π inter-actions. Short Cl⋯Cl [3.1140 (17) Å] and Br⋯Cl [3.4565 (13) Å] contacts are observed.
متن کامل2,3-Dibromo-1,3-bis(4-fluorophenyl)propan-1-one
In the title compound, C(15)H(10)Br(2)F(2)O, the dihedral angle between the two 3-fluoro-substituted benzene rings is 5.7 (5)°. The two bromine substituents on the chalcone moiety are close to anti as the Br-C-C-Br torsion angle is 176.9 (7)°. Weak C-Br⋯π inter-actions may contribute to the crystal stability.
متن کامل2,3-Dibromo-3-(4-bromophenyl)-1-[3-(4-methoxyphenyl)sydnon-4-yl]propan-1-one
In the title compound {systematic name: 4-[2,3-dibromo-3-(4-bromo-phen-yl)propano-yl]-3-(4-meth-oxy-phen-yl)-1,2,3-oxa-dia-zol-3-ylium-5-olate}, C(18)H(13)Br(3)N(2)O(4), the central oxadiazole ring, which is essentially planar with a maximum deviation of 0.016 (3) Å, makes dihedral angles of 29.98 (16) and 52.04 (16)°, respectively, with the terminal bromo-substituted and meth-oxy-substituted b...
متن کامل3,5-Dibromo-2,2,6,6,7,7-hexamethyloctane-4-one
In the title mol-ecule, C14H26Br2O, the central carbonyl group (C3O) is essentially planar (r.m.s. deviation = 0.0021 Å). The Br atoms lie on the same side of the mol-ecule and are approximately syn, with a Br-C⋯C-Br torsion angle of -43.52 (13)°. The crystal structure is devoid of any specific inter-molecular inter-actions.
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2012
ISSN: 0108-7673
DOI: 10.1107/s0108767312095001