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多金属和混合环境铱（III）配合物：一种使用主体平台进行发光调谐的模块化方法。

Multimetallic and Mixed Environment Iridium(III) Complexes: A Modular Approach to Luminescence Tuning Using a Host Platform.

作者信息

Pritchard Victoria E, Rota Martir Diego, Zysman-Colman Eli, Hardie Michaele J

机构信息

School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK.

Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St. Andrews, St Andrews, Fife, KY16 9ST, UK.

出版信息

Chemistry. 2017 Jul 3;23(37):8839-8849. doi: 10.1002/chem.201700237. Epub 2017 May 3.

DOI:10.1002/chem.201700237
PMID:28345798
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5499719/
Abstract

Mononuclear and trinuclear bis-cyclometallated Ir complexes of the host ligands tris(4-[4'-methyl-2,2'-bipyridyl]methyl)cyclotriguaiacylene (L1) and tris(4-(4'-methyl-2,2'- bipyridyl)carboxy)cyclotriguaiacylene (L2) have been prepared. Complexes {Ir(ppy) } (L1) (1.1), {Ir(ppy) }(L1) (1.2), {Ir(ppy) } (L2) (2.1) and {Ir(ppy) }(L2) (2.2) (where ppy=phenylpyridinato) showed distinct photophysical properties depending on the L ligand. Complexes featuring the L1 ligand were comparatively blue-shifted in solution, with longer lifetimes and higher quantum yields. The mixed bis-cyclometallated Ir complexes {Ir(ppy) }{Ir(dFppy) } (L1) (1.3), {Ir(ppy) }{Ir(dFppy) } (L2) (2.3), {Ir(ppy) } {Ir(dFppy) }(L1) (1.4) and {Ir(ppy) } {Ir(dFppy) }(L2) (2.4) (where dFppy=2,4-difluorophenylpyrinato) were also synthesised. Steady-state and time-resolved spectroscopy, along with electrochemical investigations, show that the Ir(III) chromophores within these mixed Ir-environment species behave as isolated centres, with no energy transfer or electronic communication between them.

摘要

已制备出主体配体三（4-[4'-甲基-2,2'-联吡啶]甲基）环三聚愈创木酚（L1）和三（4-(4'-甲基-2,2'-联吡啶)羧基）环三聚愈创木酚（L2）的单核和三核双环金属化铱配合物。配合物{Ir(ppy)₂}(L1)₂（1.1）、{Ir(ppy)₂}(L1)₂（1.2）、{Ir(ppy)₂}(L2)₂（2.1）和{Ir(ppy)₂}(L2)₂（2.2）（其中ppy = 苯基吡啶基）根据L配体表现出不同的光物理性质。具有L1配体的配合物在溶液中相对蓝移，具有更长的寿命和更高的量子产率。还合成了混合双环金属化铱配合物{Ir(ppy)₂}{Ir(dFppy)₂}(L1)₂（1.3）、{Ir(ppy)₂}{Ir(dFppy)₂}(L2)₂（2.3）、{Ir(ppy)₂}{Ir(dFppy)₂}(L1)₂（1.4）和{Ir(ppy)₂}{Ir(dFppy)₂}(L2)₂（2.4）（其中dFppy = 2,4-二氟苯基吡啶基）。稳态和时间分辨光谱以及电化学研究表明，这些混合铱环境物种中的Ir(III)发色团表现为孤立中心，它们之间没有能量转移或电子通信。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/b1a8108b1fc6/CHEM-23-8839-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/0117c2a7f060/CHEM-23-8839-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/44ec040a649c/CHEM-23-8839-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/94b81454b0ca/CHEM-23-8839-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/e7d5db7b7578/CHEM-23-8839-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/edbde9cf75ff/CHEM-23-8839-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/88389ae183a0/CHEM-23-8839-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/a13a5b5dd34f/CHEM-23-8839-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/b1a8108b1fc6/CHEM-23-8839-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/0117c2a7f060/CHEM-23-8839-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/44ec040a649c/CHEM-23-8839-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/94b81454b0ca/CHEM-23-8839-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/e7d5db7b7578/CHEM-23-8839-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/edbde9cf75ff/CHEM-23-8839-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/88389ae183a0/CHEM-23-8839-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/a13a5b5dd34f/CHEM-23-8839-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8466/5499719/b1a8108b1fc6/CHEM-23-8839-g006.jpg

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