An Ultralong Low‐Temperature Phosphorescent Pentagonal‐Prismatic Organometallic Cylinder Featuring Pentaphenylpyrrole‐N‐Heterocyclic Carbenes

Author:

Li Man1,Li Yang1,Li Xin1,Wang Fang1,Han Ying‐Feng1

Affiliation:

1. Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science Northwest University Xi'an Shaanxi 710127 China

Abstract

Comprehensive SummaryA pentagonal‐prismatic cylinder [Ag5(L)2](PF6)5 obtained from the pentaphenylpyrrole‐bridged pentaimidazolium salt H5L(PF6)5 and AgI ions was determined by X‐ray diffraction analyses. The target organometallic cylinder not only exhibited enhanced fluorescence emission in dilute solution at room temperature but also showed an improved phosphorescence ratio compared with the free precursor and maintained a long lifetime (1.39 s) in the solid state at 77 K. Furthermore, the experimental results and DFT calculations confirmed that the formation of the organometallic cylinder promoted intersystem crossing. Meanwhile, the frontier orbitals of [Ag5(L)2](PF6)5 showed the main contribution of building block PPP as the luminescence source of [Ag5(L)2](PF6)5 by a modest heavy‐atom effect. These results provide a strategy for constructing enhanced phosphorescent emission and long lifetime organometallic supramolecular phosphorescent materials.

Publisher

Wiley

Subject

General Chemistry

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3