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Crystal structure of tris-[4-(3,4-di-meth-oxy-thio-phen-2-yl)phen-yl]amine
Masafumi Yano1, Yukiyasu Kashiwagi2, Koki Oishi1
1Kansai University, 3-3-35 Yamate-cho Suita Osaka 564-8680 Japan.
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In the title compound tris-[4-(3,4-di-meth-oxy-thio-phen-2-yl)phen-yl]amine (DMOT-TPA), C36H33NO6S3, the central nitro-gen atom shows no pyramidalization, with the three para-phenyl-ene rings arranged in a propeller-like geometry. Each thio-phene ring is twisted by about 25-29° relative to the adjacent phenyl-ene ring, giving a distorted π-conjugated framework. In the crystal, mol-ecules are linked through multiple C-H⋯π inter-actions into two-dimensional sheets, which extend into a three-dimensional network. A Cambridge Structural Database survey revealed no prior examples of tri-phenyl-amines bearing 3,4-di-meth-oxy-thio-phen units at the para positions. This unique structure provides new insights into the design of redox-active organic materials.
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