Crystal Structure of 1,3,4-Triphenyl-pyrrole-2,5-dione.
نویسندگان
چکیده
منابع مشابه
Crystal structure of 1,3,4-triphenyl-pyrrole-2,5-dione.
withdrawing groups and an electron-donating group. The electron-withdrawing groups are further conjugated with a double bond in the ring. The light-absorption characteristics of the molecule are expected to be modified by changing the substituents attached to the molecule. This indicates that the molecule can be one of the basic components in designing functional dyes. It is therefore of partic...
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pyrrolo[3,4-c]pyrrole-1,4-dione can be applicable as useful pigments. One of them, 3,6-bis(4-chlorophenyl)pyrrolo[3,4c]pyrrole-1,4-dione, is now on the market. Several structural studies have been undertaken on compounds consisting of this choromophore system.1 Most of them have aromatic substituents at the 3 positions of the chromophore and no large substituents at the nitrogen atom. In order ...
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The asymmetric unit of the title compound, C(6)H(7)NO(3), contains two mol-ecules (A and B) related by a non-crystallographic twofold pseudo-axis. The mol-ecules are joined in the (AABB)(n) manner by O-H⋯O hydrogen bonds between their hy-droxy groups, thus forming C(2) chains along the a-axis direction. Neighboring mol-ecules of the same kind (A and A, or B and B) are related by inversion cente...
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In the title compound, C(11)H(9)NO(3), the dihedral angle between the meth-oxy-benzene and 1H-pyrrole-2,5-dione rings is 75.60 (10)°. The C atom of the meth-oxy group is close to coplanar with its attached ring [deviation = 0.208 (2) Å]. In the crystal, weak aromatic π-π stacking [centroid-centroid separation = 3.8563 (13) Å] occurs between inversion-related pairs of benzene rings.
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In the title compound, C9H15NO2, the piperidine ring exhibits a chair conformation. The butane-dione subunit exhibits a conformation with the ketone C atom in an eclipsed position with respect to the amide carbonyl group. In the crystal, a two-dimensional layered arrangement is formed by hydrogen bonds of the C-H⋯O type between the methyl group and the exocyclic methyl-ene unit as donor sites a...
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ژورنال
عنوان ژورنال: Analytical Sciences
سال: 2001
ISSN: 0910-6340,1348-2246
DOI: 10.2116/analsci.17.1471