Synthesis, liquid-crystalline behavior, and photoluminescence properties of novel Au(I) complex with naphthalene ring in a mesogenic core

Yuki Rokusha; Nana Sugimoto; Shigeyuki Yamada; Osamu Tsutsumi

doi:10.1117/12.2060334

7 October 2014 Synthesis, liquid-crystalline behavior, and photoluminescence properties of novel Au(I) complex with naphthalene ring in a mesogenic core

Yuki Rokusha, Nana Sugimoto, Shigeyuki Yamada, Osamu Tsutsumi

Author Affiliations +

Proceedings Volume 9182, Liquid Crystals XVIII; 918206 (2014) https://doi.org/10.1117/12.2060334
Event: SPIE Organic Photonics + Electronics, 2014, San Diego, California, United States

Abstract

A rod-like Au(I) complex, which has a naphthalene ring in a mesogenic core, was synthesized by complexation of an ethynyl-substituted naphthalene derivative with (tht)AuCl, followed by treatment with 1-pentyl isocyanide. Characterization by NMR and X-ray crystallographic analysis revealed its molecular structure and crystal packing structure. The Au complex was found to exhibit enantiotropic liquid crystallinity. The temperature range in which a liquid–crystalline (LC) phase existed was wider than those for the corresponding LC gold complexes with phenyl or biphenyl moieties reported so far. For the Au complex in this study, photoluminescence was observed at 505 nm in the crystalline phase. In this paper, the relationship between molecular structure and LC behavior or photophysical properties is described by comparing this complex with other rod-like Au complexes.

Citation Download Citation

Yuki Rokusha, Nana Sugimoto, Shigeyuki Yamada, and Osamu Tsutsumi "Synthesis, liquid-crystalline behavior, and photoluminescence properties of novel Au(I) complex with naphthalene ring in a mesogenic core", Proc. SPIE 9182, Liquid Crystals XVIII, 918206 (7 October 2014); https://doi.org/10.1117/12.2060334

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