Synthesis and Molecular Structures of Two Novel π-Conjugation Extended Dithia[3.3]metacyclophanes

• 作者: Akihiko Tsuge Daisuke Yakeya Kenji Yoza Tetsuji Moriguchi Venkataprasad Jalli
• 来源期刊: 晶体结构理论与应用(英文)
• 学科: 化学
• 关键词: CYCLOPHANE X-RAY Analysis SUZUKI Coupling π-Conjugation
• 年，卷（期）: 2017,（1）
• 页码范围: 1-10
• 页数: 10页
• 分类号: O6

摘要

Two novel dithia[3.3]metacyclophanes substituted with ethynyl groups were synthesized as small-sized metacyclophanes from the corresponding brominated dithia-metacyclophanes via C-C bond formation reaction. These compounds were characterized by using 1H NMR, mass spectrometry and elemental analyses. The exact structures were determined by using X-ray diffraction analyses. X-ray diffraction analysis results revealed that these compounds have anti conformations because of existence of intermolecular π-π interaction and some short contacts in the crystal. The long wavelength fluorescence was observed for one of the compound having a pyrene moiety in solid state because of the existence of the intermolecular π-π interaction between two pyrene units.