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論文が、Acta Crystallographica Section Eに掲載されました。ぜひ、ご覧ください。

Crystal structure of tris­­[4-(3,4-di­meth­­oxy­thio­phen-2-yl)phen­yl]amine

Masafumi Yano, Yukiyasu Kashiwagi, Koki Oishi, Minori Yano, and Koichi Mitsudo, Acta Crystallographica Section E 2026, 82(2) ox2019.

https://doi.org/10.1107/S2056989026000058

Abstract

In the title compound tris­[4-(3,4-di­meth­oxy­thio­phen-2-yl)phen­yl]amine (DMOT-TPA), C₃₆H₃₃NO₆S₃, the central nitro­gen atom shows no pyramidalization, with the three para-phenyl­ene rings arranged in a propeller-like geometry. Each thio­phene ring is twisted by about 25–29° relative to the adjacent phenyl­ene ring, giving a distorted π-conjugated framework. In the crystal, mol­ecules are linked through multiple C—H⋯π inter­actions into two-dimensional sheets, which extend into a three-dimensional network. A Cambridge Structural Database survey revealed no prior examples of tri­phenyl­amines bearing 3,4-di­meth­oxy­thio­phen units at the para positions. This unique structure provides new insights into the design of redox-active organic materials.