Abstract
The title compound, C22H20N2O2, was prepared in a twofold Cadogan cyclization followed by double N-methylation. The crystal structure is characterized by a zigzag arrangement of centrosymmetric molecules. The indolocarbazole framework is essentially planar [maximum deviation = 0.028 (2) Å] and the methoxy groups are orthogonal to this plane [C—C—O—C torsion angle = −88.2 (2)°]. The lengths of the C—N bonds are nearly identical and all C—C bonds of the pyrrole subunit are significantly longer than the C—C bonds in the benzene rings.
Highlights
The title compound, C22H20N2O2, was prepared in a twofold Cadogan cyclization followed by double N-methylation
The crystal structure is characterized by a zigzag arrangement of centrosymmetric molecules
The indolocarbazole framework is essentially planar [maximum deviation = 0.028 (2) A ] and the methoxy groups are orthogonal to this plane [C—C—O— C torsion angle = À88.2 (2)]
Summary
The lengths of the C—N bonds are nearly identical and all C—C bonds of the pyrrole subunit are significantly longer than the C—C bonds in the benzene rings
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