1-(2-Methoxyphenyl)-1H-pyrrole-2,5-dione
نویسندگان
چکیده
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.
منابع مشابه
3,4-Bis(4-methoxyphenyl)-2,5-dihydro-1H-pyrrole-2,5-dione
In the title compound, C(18)H(15)NO(4), the benzene rings form quite different dihedral angles [16.07 (1) and 59.50 (1)°] with the central pyrrole ring, indicating a twisted mol-ecule. Conjugation is indicated between the five- and six-membered rings by the lengths of the C-C bonds which link them [1.462 (3) and 1.477 (3) Å]. The most prominent feature of the crystal packing is the formation of...
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In the title compound, C14H13N3O3, a twist occurs, as seen in the dihedral angle of 53.60 (12)° between the pyrrole and benzene rings. A three-dimensional architecture is formed in the crystal whereby layers of mol-ecules in the ac plane are connected by C-H⋯O and C-H⋯π inter-actions.
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There are four molecules in the asymmetric unit of the title compound, C(16)H(17)N(3)O(4), in which the dihedral angles between the indole ring system and maleimide ring are 4.5 (3), 8.3 (3), 8.4 (2) and 10.4 (2)°. In the crystal, mol-ecules are linked by numerous N-H⋯O and O-H⋯O hydrogen bonds, generating a three-dimensional network.
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In the title mol-ecule, C26H17N3O2, both indole ring systems are essentially planar, with maximum deviations of 0.019 (2) and 0.033 (1) Å for the N atoms, and form dihedral angles of 34.40 (9) and 45.06 (8)° with the essentially planar pyrrole ring [maximum deviation = 0.020 (2) Å]. The dihedral angle between the two indole ring systems is 58.78 (6)°. In the crystal, mol-ecules are connected by...
متن کاملCrystal structure of 3,4-diphenyl-N-cyclohexylpyrrole-2,5-dione.
component for functional dyes because it contains two electronwithdrawing and one electron-donating groups. Studies to understand how substituents to the 1H-pyrrole-2,5-dione skeleton influence its structure and properties are of particular interest from the viewpoint of the development of novel functional dyes. We determined the structure of 1,3,4triphenyl-pyrrole-2,5-dione (Fig. 1(I))1 and de...
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