منابع مشابه
2,4-Dibromo-1,3-dihydroxy-9H-xanthen-9-one
The title compound, C13H6Br2O4, derived from xanthone, a fundamental structural framework of active ingredients in many medicinal plants, and was synthesized by bromination of 1,3-di-hydroxyxanthen-9-one with N-bromo-succinimide. The mol-ecular conformation is essentially planar, the dihedral angle between the benzene rings being 1.1 (4)°. This conformation is favorable for the formation of an ...
متن کامل3,6-Dibromo-9-(4-chlorobenzyl)-9H-carbazole
The title compound, C(19)H(12)Br(2)ClN, was synthesized by N-alkyl-ation of 1-chloro-4-(chloro-meth-yl)benzene with 3,6-dibromo-9H-carbazole. The carbazole ring system is essentially planar (mean deviation of 0.028 Å) and makes a dihedral angle of 74.6 (3)° with the plane of the benzene ring.
متن کامل2,7-Dibromo-9-octyl-9H-carbazole
In the crystal structure of the title compound, C(20)H(23)Br(2)N, the octyl chains are extended in an anti conformation and form a segregating bilayer, isolating rows of carbazole units. The carbazole moieties are engaged in offset π-π inter-actions; the smallest centroid-to-centroid distance is 4.2822 (11) Å. This offset packing motif allows the methyl-ene group attached directly to the N atom...
متن کامل3,6-Dibromo-9-(4-bromobenzyl)-9H-carbazole
The title compound, C(19)H(12)Br(3)N, was synthesized by N-alkyl-ation of 1-bromo-4-(bromo-meth-yl)benzene with 3,6-dibromo-9H-carbazole. There are two unique mol-ecules in the asymmetric unit. The carbazole ring system is essentially planar, with a mean deviation of 0.0402 Å for one mol-ecule and 0.0279 Å for the other. The carbazole planes are inclined to the benzene ring planes at dihedral a...
متن کامل(E)-2-Methoxy-9-(2-methoxy-9H-xanthen-9-ylidene)-9H-xanthene
The title compound, C28H20O4, was synthesized by a bimolecular Zn-HCl reduction in glacial acetic acid using the meth-oxy-substituted xanthone as a starting material. The crystal structure shows that the 2,2'-meth-oxy-bixanthenyl-idene unit is an E-type conformation anti-folded conformer. The mol-ecule lies on an inversion center. The meth-oxy group is almost coplanar with the attached benzene ...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2013
ISSN: 1600-5368
DOI: 10.1107/s1600536813019296