Delayed Doublet Emission in a Cerium(III) Complex

被引：8

作者：

Fang, Peiyu ^{[1
]}

Liu, Jiawen ^{[2
]}

Liu, Huanyu ^{[1
]}

Yu, Gang

Fu, Pengxiang

Wang, Bingwu ^{[1
]}

Qu, Jianglan ^{[2
]}

Huang, Yanyi ^{[1
]}

Bian, Zuqiang ^{[1
]}

Liu, Zhiwei ^{[1
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China

[2] Beijing Univ Agr, Key Lab Urban Agr North China, Beijing 102206, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2023年 / 62卷 / 24期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Cerium; Doublet Emission; Energy Transfer; Luminescence; Open-Shell Molecules; LIGHT-EMITTING-DIODES; LIGAND; REACTIVITY; PYRAZOLYL; POLYMERS; RUBY; PZ;

D O I：

10.1002/anie.202302192

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Doublet emission from open-shell molecules has demonstrated its research and application value in recent years. However, understandings of the photoluminescence mechanism of open-shell molecules are far less than that of closed-shell molecules, leading to challenges in molecular design of efficient doublet emission systems. Here we report a cerium(III) 4-(9H-carbozol-9-yl)phenyl-tris(pyrazolyl)borate complex Ce(CzPhTp)(3) with a new luminescence mechanism of delayed doublet emission, which also represents the first example with metal-centered delayed photoluminescence. The energy gap between the doublet and triplet excited states of Ce(CzPhTp)(3) is reduced by the management of the inner and outer coordination spheres, thereby promoting efficient energy transfer between the two excited states and activating the delayed emission. The photoluminescence mechanism discovered may provide a new way for the design of efficient doublet emission and bring insights into rational molecular design and energy level regulation in open-shell molecules.

引用

页数：7

共 56 条

[21] Luminescent Radical-Excimer: Excited-State Dynamics of Luminescent Radicals in Doped Host Crystals [J].

Kato, Ken ;

Kimura, Shun ;

Kusamoto, Tetsuro ;

Nishihara, Hiroshi ;

Teki, Yoshio .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2019, 58 (09) :2606-2611

[22] Radical-Based Coordination Polymers as a Platform for Magnetoluminescence [J].

Kimura, Shun ;

Matsuoka, Ryota ;

Kimura, Shojiro ;

Nishihara, Hiroshi ;

Kusamoto, Tetsuro .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2021, 143 (15) :5610-5615

[23] An Open-shell, Luminescent, Two-Dimensional Coordination Polymer with a Honeycomb Lattice and Triangular Organic Radical [J].

Kimura, Shun ;

Uejima, Motoyuki ;

Ota, Wataru ;

Sato, Tohru ;

Kusaka, Shinpei ;

Matsuda, Ryotaro ;

Nishihara, Hiroshi ;

Kusamoto, Tetsuro .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2021, 143 (11) :4329-4338

[24] Magnetoluminescence in a Photostable, Brightly Luminescent Organic Radical in a Rigid Environment [J].

Kimura, Shun ;

Kusamoto, Tetsuro ;

Kimura, Shojiro ;

Kato, Ken ;

Teki, Yoshio ;

Nishihara, Hiroshi .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2018, 57 (39) :12711-12715

[25] The synthesis, structure and reactivity of phenyl tris(3-tert-butylpyrazolyl)borato iron methyl, [PhTpBut]FeMe:: Isolation of a four-coordinate monovalent iron carbonyl complex, [PhTpBut]FeCo [J].

Kisko, JL ;

Hascall, T ;

Parkin, G .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (40) :10561-10562

[26] Luminescence and reactivity of a charge-transfer excited iron complex with nanosecond lifetime [J].

Kjmer, Kasper Skov ;

Kaul, Nidhi ;

Prakash, Om ;

Chabera, Pavel ;

Rosemann, Nils W. ;

Honarfar, Alireza ;

Gordivska, Olga ;

Fredin, Lisa A. ;

Bergquist, Karl-Erik ;

Haggstrom, Lennart ;

Ericsson, Tore ;

Lindh, Linnea ;

Yartsev, Arkady ;

Styring, Stenbjorn ;

Huang, Ping ;

Uhlug, Jens ;

Bendix, Jesper ;

Strand, Daniel ;

Sundstrom, Villy ;

Persson, Petter ;

Lomoth, Reiner ;

Warnmark, Kenneth .

SCIENCE, 2019, 363 (6424) :249-+

[27] An amino acid bioconjugate of an organoplatinum tris(pyrazolyl)borate complex:: Synthesis and structure of [p-(tBuO-Phe-CO)C6H4Tp]PtMe3 [J].

Kuchta, Matthew C. ;

Gemel, Christian ;

Metzler-Nolte, Nils .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2007, 692 (06) :1310-1314

[28] Singlet and triplet to doublet energy transfer: improving organic light-emitting diodes with radicals [J].

Li, Feng ;

Gillett, Alexander J. ;

Gu, Qinying ;

Ding, Junshuai ;

Chen, Zhangwu ;

Hele, Timothy J. H. ;

Myers, William K. ;

Friend, Richard H. ;

Evans, Emrys W. .

NATURE COMMUNICATIONS, 2022, 13 (01)

[29] An sp-hybridized all-carboatomic ring, cyclo[18]carbon: Electronic structure, electronic spectrum, and optical nonlinearity [J].

Liu, Zeyu ;

Lu, Tian ;

Chen, Qinxue .

CARBON, 2020, 165 :461-467

[30] Di- and tritopic poly(pyrazol-1-yl)borate ligands:: Synthesis, characterization, and reactivity toward [Mn(CO)5Br] [J].

Morawitz, Thorsten ;

Zhang, Fan ;

Bolte, Michael ;

Bats, Jan W. ;

Lerner, Hans-Wolfram ;

Wagner, Matthias .

ORGANOMETALLICS, 2008, 27 (19) :5067-5074

← 1 2 3 4 5 6 →