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Wang XT, He SR, Lv FW, Wang XT, Hong MX, Cao L, Zhuang GL, Chen C, Zheng J, Long LS, Zheng XY. Ln 3+ Induced Thermally Activated Delayed Fluorescence of Chiral Heterometallic Clusters Ln 2Ag 28. Angew Chem Int Ed Engl 2024; 63:e202410414. [PMID: 38924578 DOI: 10.1002/anie.202410414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 06/25/2024] [Accepted: 06/26/2024] [Indexed: 06/28/2024]
Abstract
A series of TADF-active compounds: 0D chiral Ln-Ag(I) clusters L-/D-Ln2Ag28-0D (Ln=Eu/Gd) and 2D chiral Ln-Ag(I) cluster-based frameworks L-/D-Ln2Ag28-2D (Ln=Gd) has been synthesized. Atomic-level structural analysis showed that the chiral Ag(I) cluster units {Ag14S12} in L-/D-Ln2Ag28-0D and L-/D-Ln2Ag28-2D exhibited similar configurations, linked by varying numbers of [Ln(H2O)x]3+ (x=6 for 0D, x=3 for 2D) to form the final target compounds. Temperature-dependent emission spectra and decay lifetimes measurement demonstrated the presence of TADF in L-Ln2Ag28-0D (Ln=Eu/Gd) and L-Gd2Ag28-2D. Experimentally, the remarkable TADF properties primarily originated from {Ag14S12} moieties in these compounds. Notably, {Ag14S12} in L-Eu2Ag28-0D and L-Gd2Ag28-2D displayed higher promote fluorescence rate and shorter TADF decay times than L-Gd2Ag28-0D. Combined with theoretical calculations, it was determined that the TADF behaviors of {Ag14S12} cluster units were induced by 4 f perturbation of Ln3+ ions. Specially, while maintaining ΔE(S1-T1) small enough, it can significantly increase k(S1→S0) and reduce TADF decay time by adjusting the type or number of Ln3+ ions, thus achieving the purpose of improving TADF for cluster-based luminescent materials.
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Affiliation(s)
- Xue-Tao Wang
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, 230601, P. R. China
| | - Sheng-Rong He
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, 230601, P. R. China
| | - Fang-Wen Lv
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, 230601, P. R. China
| | - Xue-Ting Wang
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, 230601, P. R. China
| | - Mei-Xin Hong
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, 230601, P. R. China
| | - Lingyun Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen University, Xiamen, 361005, P. R. China
| | - Gui-Lin Zhuang
- Key Laboratory of Functional Molecular Solids Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
| | - Cheng Chen
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, 230601, P. R. China
| | - Jun Zheng
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, 230601, P. R. China
| | - La-Sheng Long
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen University, Xiamen, 361005, P. R. China
| | - Xiu-Ying Zheng
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, 230601, P. R. China
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Ferraro V, Bizzarri C, Bräse S. Thermally Activated Delayed Fluorescence (TADF) Materials Based on Earth-Abundant Transition Metal Complexes: Synthesis, Design and Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2404866. [PMID: 38984475 PMCID: PMC11426009 DOI: 10.1002/advs.202404866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/27/2024] [Indexed: 07/11/2024]
Abstract
Materials exhibiting thermally activated delayed fluorescence (TADF) based on transition metal complexes are currently gathering significant attention due to their technological potential. Their application extends beyond optoelectronics, in particular organic light-emitting diodes (OLEDs) and light-emitting electrochemical cells (LECs), and include also photocatalysis, sensing, and X-ray scintillators. From the perspective of sustainability, earth-abundant metal centers are preferred to rarer second- and third-transition series elements, thus determining a reduction in costs and toxicity but without compromising the overall performances. This review offers an overview of earth-abundant transition metal complexes exhibiting TADF and their application as photoconversion materials. Particular attention is devoted to the types of ligands employed, helping in the design of novel systems with enhanced TADF properties.
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Affiliation(s)
- Valentina Ferraro
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, 76131, Karlsruhe, Germany
| | - Claudia Bizzarri
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, 76131, Karlsruhe, Germany
| | - Stefan Bräse
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, 76131, Karlsruhe, Germany
- Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, 76131, Karlsruhe, Germany
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3
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Li TY, Zheng SJ, Djurovich PI, Thompson ME. Two-Coordinate Thermally Activated Delayed Fluorescence Coinage Metal Complexes: Molecular Design, Photophysical Characters, and Device Application. Chem Rev 2024; 124:4332-4392. [PMID: 38546341 DOI: 10.1021/acs.chemrev.3c00761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Since the emergence of the first green light emission from a fluorescent thin-film organic light emitting diode (OLED) in the mid-1980s, a global consumer market for OLED displays has flourished over the past few decades. This growth can primarily be attributed to the development of noble metal phosphorescent emitters that facilitated remarkable gains in electrical conversion efficiency, a broadened color gamut, and vibrant image quality for OLED displays. Despite these achievements, the limited abundance of noble metals in the Earth's crust has spurred ongoing efforts to discover cost-effective electroluminescent materials. One particularly promising avenue is the exploration of thermally activated delayed fluorescence (TADF), a mechanism with the potential to fully harness excitons in OLEDs. Recently, investigations have unveiled TADF in a series of two-coordinate coinage metal (Cu, Ag, and Au) complexes. These organometallic TADF materials exhibit distinctive behavior in comparison to their organic counterparts. They offer benefits such as tunable emissive colors, short TADF emission lifetimes, high luminescent quantum yields, and reasonable stability. Impressively, both vacuum-deposited and solution-processed OLEDs incorporating these materials have achieved outstanding performance. This review encompasses various facets on two-coordinate TADF coinage metal complexes, including molecular design, photophysical characterizations, elucidation of structure-property relationships, and OLED applications.
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Affiliation(s)
- Tian-Yi Li
- Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Shu-Jia Zheng
- Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Peter I Djurovich
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Mark E Thompson
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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4
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Busch J, Rehak FR, Ferraro V, Nieger M, Kemell M, Fuhr O, Klopper W, Bräse S. From Mono- to Polynuclear 2-(Diphenylphosphino)pyridine-Based Cu(I) and Ag(I) Complexes: Synthesis, Structural Characterization, and DFT Calculations. ACS OMEGA 2024; 9:2220-2233. [PMID: 38250424 PMCID: PMC10795044 DOI: 10.1021/acsomega.3c05755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 10/21/2023] [Accepted: 10/25/2023] [Indexed: 01/23/2024]
Abstract
A series of monometallic Ag(I) and Cu(I) halide complexes bearing 2-(diphenylphosphino)pyridine (PyrPhos, L) as a ligand were synthesized and spectroscopically characterized. The structure of most of the derivatives was unambiguously established by X-ray diffraction analysis, revealing the formation of mono-, di-, and tetranuclear complexes having general formulas MXL3 (M = Cu, X = Cl, Br; M = Ag, X = Cl, Br, I), Ag2X2L3 (X = Cl, Br), and Ag4X4L4 (X = Cl, Br, I). The Ag(I) species were compared to the corresponding Cu(I) analogues from a structural point of view. The formation of Cu(I)/Ag(I) heterobimetallic complexes MM'X2L3 (M/M' = Cu, Ag; X = Cl, Br, I) was also investigated. The X-ray structure of the bromo-derivatives revealed the formation of two possible MM'Br2L3 complexes with Cu/Ag ratios, respectively, of 7:1 and 1:7. The ratio between Cu and Ag was studied by scanning electron microscopy-energy-dispersive X-ray analysis (SEM-EDX) measurements. The structure of the binuclear homo- and heterometallic derivatives was investigated using density functional theory (DFT) calculations, revealing the tendency of the PyrPhos ligands not to maintain the bridging motif in the presence of Ag(I) as the metal center.
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Affiliation(s)
- Jasmin
M. Busch
- Institute
of Organic Chemistry (IOC), Karlsruhe Institute
of Technology (KIT), Kaiserstrasse 12, 76131 Karlsruhe, Germany
| | - Florian R. Rehak
- Institute
of Physical Chemistry (IPC), Karlsruhe Institute
of Technology (KIT), Kaiserstrasse 12, 76131 Karlsruhe, Germany
| | - Valentina Ferraro
- Institute
of Organic Chemistry (IOC), Karlsruhe Institute
of Technology (KIT), Kaiserstrasse 12, 76131 Karlsruhe, Germany
| | - Martin Nieger
- Department
of Chemistry, University of Helsinki, A.I. Virtasen Aukio 1, P.O. Box 55, FI 00014 Helsinki, Finland
| | - Marianna Kemell
- Department
of Chemistry, University of Helsinki, A.I. Virtasen Aukio 1, P.O. Box 55, FI 00014 Helsinki, Finland
| | - Olaf Fuhr
- Institute
of Nanotechnology (INT), Karlsruhe Institute
of Technology (KIT), Kaiserstrasse 12, 76131 Karlsruhe, Germany
- Karlsruhe
Nano-Micro Facility (KNMFi), Karlsruhe Institute
of Technology (KIT), Kaiserstrasse 12, 76131 Karlsruhe, Germany
| | - Wim Klopper
- Institute
of Physical Chemistry (IPC), Karlsruhe Institute
of Technology (KIT), Kaiserstrasse 12, 76131 Karlsruhe, Germany
- Institute
of Nanotechnology (INT), Karlsruhe Institute
of Technology (KIT), Kaiserstrasse 12, 76131 Karlsruhe, Germany
| | - Stefan Bräse
- Institute
of Organic Chemistry (IOC), Karlsruhe Institute
of Technology (KIT), Kaiserstrasse 12, 76131 Karlsruhe, Germany
- Institute
of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, 76131 Karlsruhe, Germany
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5
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Song XF, Peng LY, Chen WK, Gao YJ, Cui G. Theoretical studies on thermally activated delayed fluorescence of "carbene-metal-amide" Cu and Au complexes: geometric structures, excitation characters, and mechanisms. Phys Chem Chem Phys 2023; 25:29603-29613. [PMID: 37877743 DOI: 10.1039/d3cp03444e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
"Carbene-metal(I)-amide" (CMA) complexes have garnered significant attention due to their remarkable properties and potential TADF applications in organic electronics. However, the atomistic working mechanism is still elusive. Herein, we chose two CMA complexes, i.e., cyclic (alkyl)(amino) carbene-copper[gold](I)-carbazole (CAAC-Cu[Au]-Cz), and employed both DFT and TD-DFT methods, in combination with radiative and nonradiative rate calculations, to investigate geometric and electronic structures of these two complexes in the ground and excited states, including orbital compositions, electronic transitions, absorption and emission spectra, and the luminescence mechanism. It is found that the coplanar or perpendicular conformations are coexistent in the ground state (S0), the lowest excited singlet state (S1), and the triplet state (T1). Both the coplanar and perpendicular S1 and T1 states have similar ligand-to-ligand charge transfer (LLCT) character between CAAC and Cz, and some charge-transfer character between metal atoms and ligands, which is beneficial to minimize the singlet-triplet energy gaps (ΔEST) and increase the spin-orbit coupling (SOC). An interesting three-state (S0, S1, T1) model involving two regions (coplanar and perpendicular) is proposed to rationalize the experimental TADF phenomena in the CMA complexes. In addition to the coplanar ones, the perpendicular S1 and T1 states also play a role in promoting the repopulation of the coplanar S1 exciton, which is a primary source for the delayed fluorescence.
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Affiliation(s)
- Xiu-Fang Song
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, Chemistry College, Beijing Normal University, Beijing 100875, P. R. China.
| | - Ling-Ya Peng
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, Chemistry College, Beijing Normal University, Beijing 100875, P. R. China.
| | - Wen-Kai Chen
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, Chemistry College, Beijing Normal University, Beijing 100875, P. R. China.
| | - Yuan-Jun Gao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China.
| | - Ganglong Cui
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, Chemistry College, Beijing Normal University, Beijing 100875, P. R. China.
- Hefei National Laboratory, Hefei 230088, China
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Yersin H, Czerwieniec R, Monkowius U, Ramazanov R, Valiev R, Shafikov MZ, Kwok WM, Ma C. Intersystem crossing, phosphorescence, and spin-orbit coupling. Two contrasting Cu(I)-TADF dimers investigated by milli- to micro-second phosphorescence, femto-second fluorescence, and theoretical calculations. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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7
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Cai XB, Liang D, Yang M, Wu XY, Lu CZ, Yu R. Efficiently increasing the radiative rate of TADF material with metal coordination. Chem Commun (Camb) 2022; 58:8970-8973. [PMID: 35861256 DOI: 10.1039/d2cc02930h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a simple and straightforward method to reduce dramatically the lifetime of a pure organic thermally activated delayed fluorescence (TADF) material VIA metal coordination is demonstrated. We designed a mononuclear silver complex [Ag(PPh2CH3)(TCzBN-PyPz)]BF4 (1) with a new emissive TCzBN-PyPz ligand. Even though the ligand and the metal complex have very similar emissive efficiencies and maximal peaks, over three orders of magnitude shorter lifetime of 0.59 μs for the complex than 2074 μs for ligand were obtained. Compared to other methods, the present protocol seems to be simple and highly effective.
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Affiliation(s)
- Xian-Bao Cai
- College of Chemical Engineering, Fuzhou, University, 350116, Fuzhou, P. R. China. .,CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Dong Liang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Mingxue Yang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Xiao-Yuan Wu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Can-Zhong Lu
- College of Chemical Engineering, Fuzhou, University, 350116, Fuzhou, P. R. China. .,CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Rongmin Yu
- College of Chemical Engineering, Fuzhou, University, 350116, Fuzhou, P. R. China. .,CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
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8
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Sun X, Peng L, Gao Y, Ye J, Cui G. Theoretical studies on
excited‐state
properties and luminescence mechanism of a
Carbene–Metal–Amide
Au(I) complex with thermally activated delayed fluorescence. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xin‐Wei Sun
- Key Laboratory of Theoretical and Computational Photochemistry Ministry of Education, College of Chemistry, Beijing Normal University Beijing PR China
| | - Ling‐Ya Peng
- Key Laboratory of Theoretical and Computational Photochemistry Ministry of Education, College of Chemistry, Beijing Normal University Beijing PR China
| | - Yuan‐Jun Gao
- Key Laboratory of Theoretical and Computational Photochemistry Ministry of Education, College of Chemistry, Beijing Normal University Beijing PR China
| | - Jin‐Ting Ye
- Key Laboratory of Theoretical and Computational Photochemistry Ministry of Education, College of Chemistry, Beijing Normal University Beijing PR China
| | - Ganglong Cui
- Key Laboratory of Theoretical and Computational Photochemistry Ministry of Education, College of Chemistry, Beijing Normal University Beijing PR China
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Malakhova YA, Sukhikh TS, Rakhmanova MI, Vinogradova KA. EFFECT OF POLYMORPHISM ON THE LUMINESCENT PROPERTIES ON SILVER(I) NITRATE COMPLEXES WITH 2-AMINO-5-PHENYLPYRAZINE. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622030155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Wu Z, Cui S, Zhao Z, He B, Li XL. Photophysical properties of homobimetallic Cu( i)–Cu( i) and heterobimetallic Cu( i)–Ag( i) complexes of 2-(6-bromo-2-pyridyl)-1 H-imidazo[4,5- f][1,10]phenanthroline. NEW J CHEM 2022. [DOI: 10.1039/d2nj00774f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The heteronuclear Cu(i)–Ag(i) complexes show dual emission bands and enhanced luminescence compared with their isostructural homobinuclear Cu(i) complexes.
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Affiliation(s)
- Zhan Wu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Shu Cui
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Zhenqin Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Bingling He
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Xiu-Ling Li
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
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11
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Beliaeva M, Belyaev A, Grachova EV, Steffen A, Koshevoy IO. Ditopic Phosphide Oxide Group: A Rigidifying Lewis Base to Switch Luminescence and Reactivity of a Disilver Complex. J Am Chem Soc 2021; 143:15045-15055. [PMID: 34491736 DOI: 10.1021/jacs.1c04413] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Heterodentate phosphines containing anionic organophosphorus groups remain virtually unexplored ligands in the coordination chemistry of coinage metals. A hybrid phosphine-phosphine oxide (o-Ph2PC6H4)2P(O)H (HP3O) readily forms the disilver complex [Ag2(P3O)2] (1) upon deprotonation of the (O)P-H fragment. Due to the electron-rich nature, the anionic phosphide oxide unit in 1 takes part in efficient intermolecular hydrogen bonding, which has an unusual and remarkably strong impact on the photoluminescence of 1, changing the emission from red (644 nm) to green-yellow (539 nm) in the solid. The basicity of the R2(O)P- group and its affinity for both inter- and intramolecular donor-acceptor interactions allow converting 1 into hydrohalogenated (2, 3) and boronated (4) derivatives, which reveal a gradual hypsochromic shift of luminescence, reaching the wavelength of 489 nm. Systematic variable-temperature analysis of the excited state properties suggests that thermally activated delayed fluorescence is involved in the emission process. The long-lived excited states for 1-4, the energy of which is largely regulated by means of the phosphide oxide unit, are potentially suitable for triplet energy transfer photocatalysis. With the highest T1 energy among 1-4, complex 4 demonstrates excellent photocatalytic activity in a [2+2] cycloaddition reaction, which has been realized for the first time for silver(I) compounds.
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Affiliation(s)
- Mariia Beliaeva
- Department of Chemistry, University of Eastern Finland, Joensuu, 80101, Finland
| | - Andrey Belyaev
- Faculty of Chemistry and Chemical Biology, TU Dortmund University, 44227 Dortmund, Germany
| | - Elena V Grachova
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - Andreas Steffen
- Faculty of Chemistry and Chemical Biology, TU Dortmund University, 44227 Dortmund, Germany
| | - Igor O Koshevoy
- Department of Chemistry, University of Eastern Finland, Joensuu, 80101, Finland
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12
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P∩N Bridged Cu(I) Dimers Featuring Both TADF and Phosphorescence. From Overview towards Detailed Case Study of the Excited Singlet and Triplet States. Molecules 2021; 26:molecules26113415. [PMID: 34200044 PMCID: PMC8200198 DOI: 10.3390/molecules26113415] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/23/2021] [Accepted: 05/25/2021] [Indexed: 11/16/2022] Open
Abstract
We present an overview over eight brightly luminescent Cu(I) dimers of the type Cu2X2(P∩N)3 with X = Cl, Br, I and P∩N = 2-diphenylphosphino-pyridine (Ph2Ppy), 2-diphenylphosphino-pyrimidine (Ph2Ppym), 1-diphenylphosphino-isoquinoline (Ph2Piqn) including three new crystal structures (Cu2Br2(Ph2Ppy)3 1-Br, Cu2I2(Ph2Ppym)3 2-I and Cu2I2(Ph2Piqn)3 3-I). However, we mainly focus on their photo-luminescence properties. All compounds exhibit combined thermally activated delayed fluorescence (TADF) and phosphorescence at ambient temperature. Emission color, decay time and quantum yield vary over large ranges. For deeper characterization, we select Cu2I2(Ph2Ppy)3, 1-I, showing a quantum yield of 81%. DFT and SOC-TDDFT calculations provide insight into the electronic structures of the singlet S1 and triplet T1 states. Both stem from metal+iodide-to-ligand charge transfer transitions. Evaluation of the emission decay dynamics, measured from 1.2 ≤ T ≤ 300 K, gives ∆E(S1-T1) = 380 cm−1 (47 meV), a transition rate of k(S1→S0) = 2.25 × 106 s−1 (445 ns), T1 zero-field splittings, transition rates from the triplet substates and spin-lattice relaxation times. We also discuss the interplay of S1-TADF and T1-phosphorescence. The combined emission paths shorten the overall decay time. For OLED applications, utilization of both singlet and triplet harvesting can be highly favorable for improvement of the device performance.
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13
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Chen CC, Cai Y, Wang LF, Wu YD, Yin HJ, Zhou JR, Ni CL, Liu W. Three Silver(I) Coordination Polymers Based on Pyridyl Ligands and Auxiliary Carboxylic Ligands: Luminescence and Efficient Sensing Properties. Inorg Chem 2021; 60:5463-5473. [PMID: 33793227 DOI: 10.1021/acs.inorgchem.0c02853] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Easily producible sensors for harmful industrial waste compounds are of significant interest for both human health and the environment. Three novel coordination polymers, [Ag(μ-aca)(μ4-bztpy)1/2] (1), [Ag(μ-bza)(μ-bpa)] (2), and [Ag2(μ-aca)2(μ-bpa)2]·EtOH·2H2O (3), were assembled in this study by reactions using Ag+ as a node with the pyridyl ligand 1,2,4,5-tetrakis(4-pyridyl)benzene (bztpy) or 9,10-bis(4-pyridyl)anthracene (bpa) and an auxiliary chelating carboxylic ligand. Single-crystal X-ray structural analyses revealed that compound 1 has a 3D framework consisting of 1D [Ag(aca)]∞ chains and bztpy linkers, while 2 and 3 have 2D layered structures consisting of binuclear Ag-carboxylate units and bpa linkers, respectively. Topological studies revealed that 1 has a bbf topology, while 2 and 3 are 2D [4,4] rhombic grids. The compounds were further characterized by powder X-ray diffraction, IR, elemental analysis, thermogravimetric analysis, and a luminescence study. The solids of 1-3 exhibited intense photoluminescent emission with λemmax at ca. 493, 472, and 500 nm, respectively. Remarkably, due to their excellent framework stability, 1 and 2 can act as multiresponsive luminescent sensors for nitrobenzene, Fe3+, and Cr2O72- with a high selectivity and sensitivity ascribed to their quenching effect.
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Affiliation(s)
- Cong-Cong Chen
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, People's Republic of China
| | - Yue Cai
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, People's Republic of China
| | - Long-Fei Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
| | - Yun-Dang Wu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, People's Republic of China
| | - Hao-Jun Yin
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, People's Republic of China
| | - Jia-Rong Zhou
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, People's Republic of China
| | - Chun-Lin Ni
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, People's Republic of China
| | - Wei Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, People's Republic of China
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14
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Paderina AV, Koshevoy IO, Grachova EV. Keep it tight: a crucial role of bridging phosphine ligands in the design and optical properties of multinuclear coinage metal complexes. Dalton Trans 2021; 50:6003-6033. [PMID: 33913991 DOI: 10.1039/d1dt00749a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Copper subgroup metal ions in the +1 oxidation state are classical candidates for aggregation via non-covalent metal-metal interactions, which are supported by a number of bridging ligands. The bridging phosphines, soft donors with a relatively labile coordination to coinage metals, serve as convenient and essential components of the ligand environment that allow for efficient self-assembly of discrete polynuclear aggregates. Simultaneously, accessible and rich modification of the organic spacer of such P-donors has been used to generate many fascinating structures with attractive photoluminescent behavior. In this work we consider the development of di- and polynuclear complexes of M(i) (M = Cu, Ag, Au) and their photophysical properties, focusing on the effect of phosphine bridging ligands, their flexibility and denticity.
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Affiliation(s)
- Aleksandra V Paderina
- Institute of Chemistry, St Petersburg State University, Universitetskii pr. 26, 198504 St Petersburg, Russia.
| | - Igor O Koshevoy
- Department of Chemistry, University of Eastern Finland, 80101 Joensuu, Finland.
| | - Elena V Grachova
- Institute of Chemistry, St Petersburg State University, Universitetskii pr. 26, 198504 St Petersburg, Russia.
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15
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Calvo M, Crespo O, Gimeno MC, Laguna A, Oliván MT, Polo V, Rodríguez D, Sáez-Rocher JM. Tunable from Blue to Red Emissive Composites and Solids of Silver Diphosphane Systems with Higher Quantum Yields than the Diphosphane Ligands. Inorg Chem 2020; 59:14447-14456. [PMID: 32981313 DOI: 10.1021/acs.inorgchem.0c02238] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PMMA composites and solids of complexes of formulas [AgX(P-P)]n [n = 1 and 2; X = Cl, NO3, ClO4, CF3COO, and OTf; P-P = dppb, xantphos, (PR2)2C2B10H10 (R = Ph and iPr)] display the whole palette of colors from blue to red upon selection of the anionic ligand (X) and the diphosphane (P-P). The diphosphane seems to play the most important role in tuning the emission energy and thermally activated delayed fluorescence (TADF) behavior. The PMMA composites of the complexes exhibit higher quantum yields than that of the diphosphane ligands and those with dppb are between 28 and 53%. Remarkably, instead of blue-green emissions which dominate the luminescence of silver diphosphane complexes in rigid phases, those with carborane diphosphanes are yellow-orange or orange-red emitters. Theoretical studies have been carried out for complexes with P-P = dppb, X = Cl; P-P = dppic, X = NO3; P-P = dppcc, X = Cl, NO3, and OTf and the mononuclear complexes [AgX(xantphos)] (X = Cl, Br). Optimization of the first excited triplet state was only possible for [AgX(xantphos)] (X = Cl and Br). A mixed MLCT and MC nature could be attributed to the S0 → T1 transition in these three-coordinated complexes.
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Affiliation(s)
- María Calvo
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH). Universidad de Zaragoza-CSIC. E-50009 Zaragoza, Spain
| | - Olga Crespo
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH). Universidad de Zaragoza-CSIC. E-50009 Zaragoza, Spain
| | - M Concepción Gimeno
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH). Universidad de Zaragoza-CSIC. E-50009 Zaragoza, Spain
| | - Antonio Laguna
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH). Universidad de Zaragoza-CSIC. E-50009 Zaragoza, Spain
| | - M Teresa Oliván
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH). Universidad de Zaragoza-CSIC. E-50009 Zaragoza, Spain
| | - Víctor Polo
- Departamento de Química Física, Instituto de Biocomputación y Física de Sistemas Complejos (BIFI). Universidad de Zaragoza, Facutad de Ciencias E-50009 Zaragoza, Spain
| | - Diego Rodríguez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH). Universidad de Zaragoza-CSIC. E-50009 Zaragoza, Spain
| | - Jose-M Sáez-Rocher
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH). Universidad de Zaragoza-CSIC. E-50009 Zaragoza, Spain
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16
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Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine. INORGANICS 2020. [DOI: 10.3390/inorganics8090046] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Two Ag(I)-based metal-organic compounds have been synthesized exploiting 4,6-bis(diphenylphosphino)pyrimidine (L). The reaction of this ligand with AgNO3 and AgBF4 in acetonitrile produces dinuclear complex, [Ag2L2(MeCN)2(NO3)2] (1) and 1D coordination polymer, [Ag2L(MeCN)3]n(BF4)2n (2), respectively. In complex 1, µ2-P,P′-bridging coordination pattern of the ligand L is observed, whereas its µ4-P,N,N′,P′-coordination mode appears in 2. Both compounds exhibit pronounced thermochromic luminescence expressed by reversible changing of the emission chromaticity from a yellow at 300 K to an orange at 77 K. At room temperature, the emission lifetimes of 1 and 2 are 15.5 and 9.4 µs, the quantum efficiency being 18 and 56%, respectively. On account of temperature-dependent experimental data, the phenomenon was tentatively ascribed to alteration of the emission nature from thermally activated delayed fluorescence at 300 K to phosphoresce at 77 K.
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17
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Teng T, Li K, Cheng G, Wang Y, Wang J, Li J, Zhou C, Liu H, Zou T, Xiong J, Wu C, Zhang HX, Che CM, Yang C. Lighting Silver(I) Complexes for Solution-Processed Organic Light-Emitting Diodes and Biological Applications via Thermally Activated Delayed Fluorescence. Inorg Chem 2020; 59:12122-12131. [PMID: 32845614 DOI: 10.1021/acs.inorgchem.0c01054] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Luminescent coinage metal complexes have shown promising applications as electroluminescent emitters, photocatalysts/photosensitizers, and bioimaging/theranostic agents, rendering them attractive alternatives to transition metal complexes based on iridium, ruthenium, and platinum that have extremely low earth abundance. In comparison to the widely studied Au(I) and Cu(I) complexes, Ag(I) complexes have seldom been explored in this field because of their inferior emission properties. Herein, we report a novel series of [Ag(N^N)(P^P)]PF6 complexes exhibiting highly efficient thermally activated delayed fluorescence by using easily accessible neutral diamine ligands and commercially available ancillary diphosphine chelates. The photoluminescence quantum yields (PLQYs) of the Ag(I) emitters are ≤0.62 in doped films. The high PLQY with a large delayed fluorescence ratio enabled the fabrication of solution-processed organic light-emitting diodes (OLEDs) with a high maximum external quantum efficiency of 8.76%, among the highest values for Ag(I) emitter-based OLEDs. With superior emission properties and an excited state lifetime in the microsecond regime, together with its potent cytotoxicity, the selected Ag(I) complex has been used for simultaneous cell imaging and anticancer treatment in human liver carcinoma HepG2 cells, revealing the potential of luminescent Ag(I) complexes for biological applications such as theranostics.
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Affiliation(s)
- Teng Teng
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, People's Republic of China.,College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Kai Li
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, People's Republic of China
| | - Gang Cheng
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, People's Republic of China
| | - Yuan Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, People's Republic of China
| | - Jian Wang
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, People's Republic of China
| | - Jiafang Li
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, People's Republic of China
| | - Changjiang Zhou
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, People's Republic of China.,College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - He Liu
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, People's Republic of China
| | - Taotao Zou
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, People's Republic of China
| | - Jinfan Xiong
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, People's Republic of China
| | - Chao Wu
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, People's Republic of China
| | - Hong-Xing Zhang
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, People's Republic of China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, People's Republic of China
| | - Chuluo Yang
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, People's Republic of China
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18
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Water dispersible supramolecular assemblies built from luminescent hexarhenium clusters and silver(I) complex with pyridine-2-ylphospholane for sensorics. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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19
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Shekhovtsov NA, Vinogradova KA, Berezin AS, Sukhikh TS, Krivopalov VP, Nikolaenkova EB, Bushuev MB. Excitation wavelength dependent emission of silver( i) complexes with a pyrimidine ligand. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00254b] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Interplay of three emission mechanisms for silver(i) complexes leads to luminescence thermochromism and color tunable emission.
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Affiliation(s)
- Nikita A. Shekhovtsov
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
- Novosibirsk State University
| | - Katerina A. Vinogradova
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
- Novosibirsk State University
| | - Alexei S. Berezin
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Taisiya S. Sukhikh
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Viktor P. Krivopalov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Elena B. Nikolaenkova
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Mark B. Bushuev
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
- Novosibirsk State University
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20
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Nine heteroleptic copper(I)/silver(I) complexes prepared from phosphine and diimine ligands: syntheses, structures and terahertz spectra. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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21
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Shamsieva AV, Musina EI, Gerasimova TP, Fayzullin RR, Kolesnikov IE, Samigullina AI, Katsyuba SA, Karasik AA, Sinyashin OG. Intriguing Near-Infrared Solid-State Luminescence of Binuclear Silver(I) Complexes Based on Pyridylphospholane Scaffolds. Inorg Chem 2019; 58:7698-7704. [DOI: 10.1021/acs.inorgchem.8b03474] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Aliia V. Shamsieva
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Elvira I. Musina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Tatiana P. Gerasimova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Robert R. Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Ilya E. Kolesnikov
- Center for Optical and Laser Materials Research, Research Park of St. Petersburg State University, Ulianovskaya Street 5, 198504 St. Petersburg, Russian Federation
| | - Aida I. Samigullina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Sergey A. Katsyuba
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Andrey A. Karasik
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Oleg G. Sinyashin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
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22
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Rogovoy MI, Samsonenko DG, Rakhmanova MI, Artem'ev AV. Self-assembly of Ag(I)-based complexes and layered coordination polymers bridged by (2-thiazolyl)sulfides. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.01.036] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Chakkaradhari G, Eskelinen T, Degbe C, Belyaev A, Melnikov AS, Grachova EV, Tunik SP, Hirva P, Koshevoy IO. Oligophosphine-thiocyanate Copper(I) and Silver(I) Complexes and Their Borane Derivatives Showing Delayed Fluorescence. Inorg Chem 2019; 58:3646-3660. [PMID: 30793896 PMCID: PMC6727211 DOI: 10.1021/acs.inorgchem.8b03166] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
![]()
The series of chelating phosphine
ligands, which contain bidentate P2 (bis[(2-diphenylphosphino)phenyl] ether, DPEphos; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene,
Xantphos; 1,2-bis(diphenylphosphino)benzene, dppb), tridentate P3 (bis(2-diphenylphosphinophenyl)phenylphosphine),
and tetradentate P4 (tris(2-diphenylphosphino)phenylphosphine)
ligands, was used for the preparation of the corresponding dinuclear
[M(μ2-SCN)P2]2 (M = Cu, 1, 3, 5; M = Ag, 2, 4, 6) and mononuclear
[CuNCS(P3/P4)] (7, 9) and
[AgSCN(P3/P4)] (8, 10) complexes.
The reactions of P4 with silver
salts in a 1:2 molar ratio produce tetranuclear clusters [Ag2(μ3-SCN)(t-SCN)(P4)]2 (11) and [Ag2(μ3-SCN)(P4)]22+ (12). Complexes 7–11 bearing terminally coordinated SCN ligands were efficiently
converted into derivatives 13–17 with
the weakly coordinating –SCN:B(C6F5)3 isothiocyanatoborate ligand. Compounds 1 and 5–17 exhibit thermally
activated delayed fluorescence (TADF) behavior in the solid state.
The excited states of thiocyanate species are dominated by the ligand
to ligand SCN → π(phosphine) charge transfer transitions
mixed with a variable contribution of MLCT. The boronation of SCN
groups changes the nature of both the S1 and T1 states to (L + M)LCT d,p(M, P) → π(phosphine). The
localization of the excited states on the aromatic systems of the
phosphine ligands determines a wide range of luminescence energies
achieved for the title complexes (λem varies from
448 nm for 1 to 630 nm for 10c). The emission
of compounds 10 and 15, based on the P4 ligand, strongly depends on the
solid-state packing (λem = 505 and 625 nm for two
crystalline forms of 15), which affects structural reorganizations
accompanying the formation of electronically excited states. Copper(I) and silver(I) thiocyanate complexes containing di-, tri-,
and tetraphosphine ligands show efficient TADF in the solid state,
dominated by the ligand to ligand SCN → π(phosphine)
charge transfer, which is changed to d,p(M, P) → π(phosphine)
transitions for the isothiocyanatoborate derivatives. The wide variation
of the emission color from blue (448 nm) to red-orange (630 nm) is
attributed to the nature of the P-donor ligands and the packing effects,
influencing structural distortions in the excited state.
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Affiliation(s)
| | - Toni Eskelinen
- Department of Chemistry , University of Eastern Finland , 80101 Joensuu , Finland
| | - Cecilia Degbe
- Department of Chemistry , University of Eastern Finland , 80101 Joensuu , Finland
| | - Andrey Belyaev
- Department of Chemistry , University of Eastern Finland , 80101 Joensuu , Finland
| | - Alexey S Melnikov
- Peter the Great St. Petersburg Polytechnic University , Polytechnicheskaya, 29 , 195251 St. Petersburg , Russia
| | - Elena V Grachova
- Institute of Chemistry , St. Petersburg State University , Universitetskiy pr. 26, Petergof , 198504 St. Petersburg , Russia
| | - Sergey P Tunik
- Institute of Chemistry , St. Petersburg State University , Universitetskiy pr. 26, Petergof , 198504 St. Petersburg , Russia
| | - Pipsa Hirva
- Department of Chemistry , University of Eastern Finland , 80101 Joensuu , Finland
| | - Igor O Koshevoy
- Department of Chemistry , University of Eastern Finland , 80101 Joensuu , Finland
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24
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Artem'ev AV, Shafikov MZ, Schinabeck A, Antonova OV, Berezin AS, Bagryanskaya IY, Plusnin PE, Yersin H. Sky-blue thermally activated delayed fluorescence (TADF) based on Ag(i) complexes: strong solvation-induced emission enhancement. Inorg Chem Front 2019. [DOI: 10.1039/c9qi01069f] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Remarkable solvation-induced emission enhancement is discovered on a new Ag(i) complex showing sky-blue thermally activated delayed fluorescence (TADF).
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Affiliation(s)
- Alexander V. Artem'ev
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russian Federation
- Novosibirsk State University (National Research University)
| | - Marsel Z. Shafikov
- Universität Regensburg
- Institut für Physikalische Chemie
- 93053 Regensburg
- Germany
- Ural Federal University
| | | | - Olga V. Antonova
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russian Federation
| | - Alexey S. Berezin
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russian Federation
- Novosibirsk State University (National Research University)
| | - Irina Yu. Bagryanskaya
- Novosibirsk State University (National Research University)
- Novosibirsk 630090
- Russian Federation
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
| | - Pavel E. Plusnin
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russian Federation
- Novosibirsk State University (National Research University)
| | - Hartmut Yersin
- Universität Regensburg
- Institut für Physikalische Chemie
- 93053 Regensburg
- Germany
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25
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Shafikov MZ, Czerwieniec R, Yersin H. Ag(i) complex design affording intense phosphorescence with a landmark lifetime of over 100 milliseconds. Dalton Trans 2019; 48:2802-2806. [DOI: 10.1039/c8dt04078h] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new Ag(i) complex was designed that shows an unprecedentedly long ambient temperature emission decay time of τ = 110 ms at an emission quantum yield of ΦPL = 50%, as measured for a doped PMMA matrix.
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Affiliation(s)
- Marsel Z. Shafikov
- Institute fur Physikalische und Theoretische Chemie
- Universität Regensburg
- D-93053 Regensburg
- Germany
- Ural Federal University
| | - Rafał Czerwieniec
- Institute fur Physikalische und Theoretische Chemie
- Universität Regensburg
- D-93053 Regensburg
- Germany
| | - Hartmut Yersin
- Institute fur Physikalische und Theoretische Chemie
- Universität Regensburg
- D-93053 Regensburg
- Germany
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26
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Artem'ev AV, Ryzhikov MR, Berezin AS, Kolesnikov IE, Samsonenko DG, Bagryanskaya IY. Photoluminescence of Ag(i) complexes with a square-planar coordination geometry: the first observation. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00657e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
First examples of square-planar Ag(i) complexes showing MLCT emission are reported. They demonstrate an interesting thermochromic luminescence with the nano- and microsecond lifetime components.
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Affiliation(s)
- Alexander V. Artem'ev
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russian Federation
- Novosibirsk State University
| | - Maxim R. Ryzhikov
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russian Federation
- Novosibirsk State University
| | - Alexey S. Berezin
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russian Federation
| | - Ilya E. Kolesnikov
- Center for Optical and Laser Materials Research
- Saint Petersburg State University
- Saint Petersburg 198504
- Russian Federation
| | - Denis G. Samsonenko
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russian Federation
- Novosibirsk State University
| | - Irina Yu. Bagryanskaya
- Novosibirsk State University
- Novosibirsk 630090
- Russian Federation
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
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27
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Schinabeck A, Rau N, Klein M, Sundermeyer J, Yersin H. Deep blue emitting Cu(i) tripod complexes. Design of high quantum yield materials showing TADF-assisted phosphorescence. Dalton Trans 2018; 47:17067-17076. [PMID: 30465052 DOI: 10.1039/c8dt04093a] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In a previous investigation, it was shown that [Cu(tpym)(PPh3)]PF61 with tpym = tris(2-pyridyl)methane represents a deep blue emitter (λmax = 466 nm) though with a low emission quantum yield ΦPL if doped in a polymer (7%) or dissolved in a fluid solvent (≪1%). In this study, we present new tripod compounds with sterically demanding ligands: [Cu(tpym)(P(o-tol)3)]PF62 and [Cu(tpym)(P(o-butyl-ph)3)]PF63 with P(o-tol)3 = tris(ortho-tolyl)phosphine and P(o-butyl-ph)3 = tris(ortho-n-butylphenyl)phosphine. These compounds show high emission quantum yields even in a fluid solution (dichloromethane) reaching a benchmark value for 3 of ΦPL = 76%. This becomes possible due to the specific design of rigidifying the complexes. Importantly, the deep blue emission color is maintained or even further blue shifted to λmax = 452 nm (compound 3 powder). Compound 2 is characterized photophysically in detail. In particular, it is shown that the lowest excited triplet state T1 experiences very efficient spin-orbit coupling (SOC). Accordingly, the phosphorescence decay rate is as large as 5 × 104 s-1 (20 μs) belonging to the fastest T1→ S0 transition values (shortest decay times) reported so far. Investigations down to T = 1.5 K reveal a large total zero-field splitting (ZFS) of 7 cm-1 (0.9 meV). Although thermally activated delayed fluorescence (TADF) grows in at T≥ 160 K, the phosphorescence of 2 still dominates (60%) over TADF (40%) at ambient temperature. Thus, the compound represents a singlet harvesting-plus-triplet harvesting material, if applied in an OLED.
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Affiliation(s)
- Alexander Schinabeck
- Universität Regensburg, Institut für Physikalische Chemie, Universitätsstr. 31, 93053, Regensburg, Germany
| | - Nicholas Rau
- Philipps-Universität Marburg, Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften WZMW, Hans Meerwein-Straße 4, 35043 Marburg, Germany.
| | - Marius Klein
- Philipps-Universität Marburg, Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften WZMW, Hans Meerwein-Straße 4, 35043 Marburg, Germany.
| | - Jörg Sundermeyer
- Philipps-Universität Marburg, Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften WZMW, Hans Meerwein-Straße 4, 35043 Marburg, Germany.
| | - Hartmut Yersin
- Universität Regensburg, Institut für Physikalische Chemie, Universitätsstr. 31, 93053, Regensburg, Germany
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