https://scholars.lib.ntu.edu.tw/handle/123456789/626438
標題: | Porous Supramolecular Assembly of Pentiptycene-Containing Gold(I) Complexes: Persistent Excited-State Aurophilicity and Inclusion-Induced Emission Enhancement | 作者: | Hsu, Ying-Feng Wu, Ting-Wei Kang, Yu-Hsuan Wu, Cheng-Yun Liu, Yi-Hung SHIE-MING PENG KIEN-VOON KONG JYE-SHANE YANG |
關鍵字: | CRYSTAL PHASE-TRANSITION; FREE-VOLUME; LUMINESCENCE; AU; VAPOCHROMISM; FLUORESCENCE; THERMOCHROMISM; COORDINATION; FRAMEWORKS; MOLECULES | 公開日期: | 1-八月-2022 | 出版社: | AMER CHEMICAL SOC | 卷: | 61 | 期: | 30 | 起(迄)頁: | 11981 | 來源出版物: | Inorganic chemistry | 摘要: | We report herein a porous supramolecular framework formed by a linear mononuclear Au(I) complex (1) via the tongue-and-groove-like joinery between the pentiptycene U-cavities (grooves) and the rod-shaped π-conjugated backbone and alkyl chains (tongues) with the assistance of C-H···π and aurophilic interactions. The framework contains distorted tetrahedral Au4 units, which undergo stepwise and persistent photoinduced Au(I)-Au(I) bond shortening (excited-state aurophilicity), leading to multicolored luminescence photochromism. The one-dimensional pore channels could accommodate different solvates and guests, and the guest inclusion-induced luminescence enhancement (up to 300%) and/or vapochromism are characterized. A correlation between the aurophilic bonding and the luminescence activity is uncovered by TDDFT calculations. Isostructural derivatives 2 and 3 corroborate both the robustness of the porous supramolecular assembly and the mechanisms of the stimulation-induced luminescence properties of 1. This work demonstrates the cooperation of aurophilicity and structural porosity and adaptability in achieving novel supramolecular photochemical properties. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/626438 | ISSN: | 0020-1669 | DOI: | 10.1021/acs.inorgchem.2c01786 |
顯示於: | 化學系 |
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