分枝構造をもつアルキル側鎖を導入した環状三核金錯体の液晶性と発光挙動

抄録

Aggregation-induced emission (AIE) materials have been expected to be applied as luminescent materials. So far, we have synthesized liquid-crystalline trinuclear Au complexes and reported their AIE behavior. Furthermore, we have found that luminescence properties of those complexes depending on the length of the alkyl side-chains. In this study, we introduced the branched side-chains via ester linkage and discussed the relationship between their structure and photophysical/thermal properties. The melting points of complexes were lowered by the introduction of the branched side-chains. In particular, the complex with the longest branch, E-Hex, showed the melting point at -15 °C and discotic nematic phase (ND) in extremely wide temperature range. These Au complexes exhibited strong phosphorescence with AIE properties at room temperature.