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

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Authors: Masafumi Yano, Yukiyasu Kashiwagi, Koki Oishi, Minori Yano, Koichi Mitsudo
Cited by: 0

Abstract

In the title compound tris[4-(3,4-dimethoxythiophen-2-yl)phenyl]amine (DMOT-TPA), C 36 H 33 NO 6 S 3 , 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.

Fields of Study & Subjects

Synthesis and Properties of Aromatic Compounds Magnetism in coordination complexes Metal-Organic Frameworks: Synthesis and Applications

Publication details

Journal / source
Acta Crystallographica Section E Crystallographic Communications
Volume
82
Issue
2
Pages
148–151
Publication date
6 January 2026
Language
EN