1
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Yang G, Chen K, Jin X, Yang D. Uncovering photo-excited intramolecular charge transfer and ESIPT mechanism for 5,5′-(9,9-dioctyl-9H-fluorene-2,7-diyl) bis(2-benzo[d]thiazol-2-yl) phenol compound. Mol Phys 2021. [DOI: 10.1080/00268976.2020.1805130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Guang Yang
- Basic Teaching Department, Jiaozuo University, Jiaozuo, People’s Republic of China
| | - Kaifeng Chen
- Basic Teaching Department, Jiaozuo University, Jiaozuo, People’s Republic of China
| | - Xiaofeng Jin
- Basic Teaching Department, Jiaozuo University, Jiaozuo, People’s Republic of China
| | - Dapeng Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, People People’s Republic of China
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2
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Thulstrup PW, Jones NC, Hoffmann SV, Spanget-Larsen J. UV polarisation spectroscopy of 1,4-diethynylbenzene. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1853841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Peter W. Thulstrup
- Department of Chemistry, University of Copenhagen, Copenhagen Ø, Denmark
| | - Nykola C. Jones
- Department of Physics and Astronomy, Aarhus University, Aarhus C, Denmark
| | - Søren V. Hoffmann
- Department of Physics and Astronomy, Aarhus University, Aarhus C, Denmark
| | - Jens Spanget-Larsen
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
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3
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Yang G, Wang G, Chen K, Yang D. Sensing of fluoride anion based on desilylation and intramolecular charge transfer of 2‐[2‐(tert‐butyl‐diphenyl‐silanyloxy)‐phenyl]‐4,5‐diphenyl‐1H‐imidazole. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Guang Yang
- Basic Teaching Department Jiaozuo University Jiaozuo China
| | - Gang Wang
- Basic Teaching Department Jiaozuo University Jiaozuo China
| | - Kaifeng Chen
- Basic Teaching Department Jiaozuo University Jiaozuo China
| | - Dapeng Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian China
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4
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Saha ML, Yan X, Stang PJ. Photophysical Properties of Organoplatinum(II) Compounds and Derived Self-Assembled Metallacycles and Metallacages: Fluorescence and its Applications. Acc Chem Res 2016; 49:2527-2539. [PMID: 27736060 DOI: 10.1021/acs.accounts.6b00416] [Citation(s) in RCA: 276] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Over the past couple of decades, coordination-driven self-assembly has evolved as a broad multidisciplinary domain that not only covers the syntheses of aesthetically pleasing supramolecular architectures but also emerges as a method to form new optical materials, chemical sensors, theranostic agents, and compounds with light-harvesting and emissive properties. The majority of these applications depend upon investigations that reveal the photophysical nature and electronic structure of supramolecular coordination complexes (SCCs), including two-dimensional (2D) metallacycles and three-dimensional (3D) metallacages. As such, well-defined absorption and emission spectra are important for a given SCC to be used for sensing, bioimaging, and other applications with molecular fluorescence being an important component. In this Account, we summarize the photophysical properties of some bis(phosphine)organoplatinum(II) compounds and their discrete SCCs. The platinum(II) based organometallic precursors typically display spectral red-shifts and have low fluorescence quantum yields and short fluorescence lifetimes compared to their organic counterparts because the introduction of metal centers enhances both intersystem crossing (ISC) and intramolecular charge transfer (ICT) processes, which can compete with the fluorescence emissions. Likewise ligands with conjugation can also increase the ICT process; hence the corresponding organoplatinum(II) compounds undergo a further decrease in fluorescence lifetimes. The use of endohedral amine functionalized 120°-bispyridyl ligands can dramatically enhance the emission properties of the resultant organoplatinum(II) based SCCs. As such these SCCs display emissions in the visible region (ca. 400-500 nm) and are significantly red-shifted (ca. 80-100 nm) compared to the ligands. This key feature makes them suitable as supramolecular theranostic agents wherein these unique emission properties provide diagnostic spectroscopic handles and the organoplatinum(II) centers act as potential anticancer agents. Using steady state and time-resolved-spectroscopic techniques and quantum computations in concert, we have determined that the emissive properties stem from the ligand-centered transitions involving π-type molecular orbitals with modest contributions from the metal-based orbitals. The self-assembly and the photophysics of organoplatinum(II) ← 3-substituted pyridyl based SCCs are highly diverse. Subtle changes in the ligands' structures can form molecular congener systems with distinct conformational and photophysical properties. Furthermore, the heterometallic SCCs described herein possess rich photophysical properties and can be used for sensing based applications. Tetraphenylethylene (TPE) based SCCs display emissions in the aggregated state as well as in dilute solutions. This is a unique phenomenon that bridges the aggregation caused quenching (ACQ) and aggregation induced emission (AIE) effects. Moreover, a TPE based metallacage exhibits solvatoluminescence, including white light emission in THF solvent, and can act as a fluorescence-sensor for structurally similar ester compounds.
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Affiliation(s)
- Manik Lal Saha
- Department
of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Xuzhou Yan
- Department
of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
- Department
of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Peter J. Stang
- Department
of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
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5
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Elliott ABS, Lewis JEM, van der Salm H, McAdam CJ, Crowley JD, Gordon KC. Luminescent Cages: Pendant Emissive Units on [Pd2L4]4+ “Click” Cages. Inorg Chem 2016; 55:3440-7. [DOI: 10.1021/acs.inorgchem.5b02843] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | - James E. M. Lewis
- Department of Chemistry, University of Otago,
P.O. Box 56, Dunedin, New Zealand
| | - Holly van der Salm
- Department of Chemistry, University of Otago,
P.O. Box 56, Dunedin, New Zealand
| | - C. John McAdam
- Department of Chemistry, University of Otago,
P.O. Box 56, Dunedin, New Zealand
| | - James D. Crowley
- Department of Chemistry, University of Otago,
P.O. Box 56, Dunedin, New Zealand
| | - Keith C. Gordon
- Department of Chemistry, University of Otago,
P.O. Box 56, Dunedin, New Zealand
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6
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Yang Y, Chen JS, Liu JY, Zhao GJ, Liu L, Han KL, Cook TR, Stang PJ. Photophysical Properties of a Post-Self-Assembly Host/Guest Coordination Cage: Visible Light Driven Core-to-Cage Charge Transfer. J Phys Chem Lett 2015; 6:1942-1947. [PMID: 26263274 DOI: 10.1021/acs.jpclett.5b00783] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Supramolecular systems are capable of unique photophysical properties due to possible interactions between subcomponents, such as between an encapsulated molecule and its cage in a host/guest environment. Here, we report that the encapsulation of a chromophore by a metallacage dramatically enhances its photophysical properties. In the visible region, the encapsulated photosensitizer achieves a 6.5-fold enhancement to its absorptivity. The triplet lifetime of the encapsulated photosensitizer is three times longer than that of its free analogue. These enhancements are attributed to two key factors: (i) encapsulation-induced core-to-cage charge transfer (CCCT) generates new visible-light absorbing states, accounting for the enhanced absorption, and (ii) the microenvironment inside the metallacage inhibits nonradiative decay processes, resulting in prolonged triplet lifetime. The CCCT arises from the electrostatic interaction between the delocalized electrons of the guest coronene and the positive charge associated with the metallacage host. The work herein provides insight into the CCCT phenomenon.
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Affiliation(s)
- Yang Yang
- †State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
| | - Jun-Sheng Chen
- †State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
- ‡University of the Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jian-Yong Liu
- †State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
| | - Guang-Jiu Zhao
- †State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
| | - Lei Liu
- †State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
| | - Ke-Li Han
- †State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
| | - Timothy R Cook
- §Department of Chemistry, University at Buffalo, Buffalo, New York 14260, United States
| | - Peter J Stang
- ∥Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
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7
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Cook TR, Stang PJ. Recent Developments in the Preparation and Chemistry of Metallacycles and Metallacages via Coordination. Chem Rev 2015; 115:7001-45. [DOI: 10.1021/cr5005666] [Citation(s) in RCA: 1299] [Impact Index Per Article: 144.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Timothy R. Cook
- Department
of Chemistry, University at Buffalo, State University of New York, 359 Natural Sciences Complex, Buffalo, New York 14260, United States
| | - Peter J. Stang
- Department
of Chemistry, University of Utah, 315 S. 1400 E. Room 2020, Salt Lake City, Utah 84112, United States
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8
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Attachment of Luminescent Neutral “Pt(pq)(C≡CtBu)” Units to Di and Tri N-Donor Connecting Ligands: Solution Behavior and Photophysical Properties. INORGANICS 2014. [DOI: 10.3390/inorganics2040565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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9
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Pollock JB, Schneider GL, Cook TR, Davies AS, Stang PJ. Tunable Visible Light Emission of Self-Assembled Rhomboidal Metallacycles. J Am Chem Soc 2013; 135:13676-9. [DOI: 10.1021/ja4079607] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- J. Bryant Pollock
- Department
of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake
City, Utah 84112, United States
| | - Gregory L. Schneider
- Department
of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake
City, Utah 84112, United States
| | - Timothy R. Cook
- Department
of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake
City, Utah 84112, United States
| | - Andrew S. Davies
- Department
of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake
City, Utah 84112, United States
| | - Peter J. Stang
- Department
of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake
City, Utah 84112, United States
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10
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Pollock JB, Cook TR, Schneider GL, Lutterman DA, Davies AS, Stang PJ. Photophysical Properties of Endohedral Amine-Functionalized Bis(phosphine) Pt(II) Complexes as Models for Emissive Metallacycles. Inorg Chem 2013; 52:9254-65. [DOI: 10.1021/ic400491q] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- J. Bryant Pollock
- Department
of Chemistry, University of Utah, 315 South
1400 East, RM 2020, Salt Lake City, Utah 84412, United States
| | - Timothy R. Cook
- Department
of Chemistry, University of Utah, 315 South
1400 East, RM 2020, Salt Lake City, Utah 84412, United States
| | - Gregory L. Schneider
- Department
of Chemistry, University of Utah, 315 South
1400 East, RM 2020, Salt Lake City, Utah 84412, United States
| | - Daniel A. Lutterman
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
37831, United States
| | - Andrew S. Davies
- Department
of Chemistry, University of Utah, 315 South
1400 East, RM 2020, Salt Lake City, Utah 84412, United States
| | - Peter J. Stang
- Department
of Chemistry, University of Utah, 315 South
1400 East, RM 2020, Salt Lake City, Utah 84412, United States
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11
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Zhang C, Zhao J, Wu S, Wang Z, Wu W, Ma J, Guo S, Huang L. Intramolecular RET Enhanced Visible Light-Absorbing Bodipy Organic Triplet Photosensitizers and Application in Photooxidation and Triplet–Triplet Annihilation Upconversion. J Am Chem Soc 2013; 135:10566-78. [DOI: 10.1021/ja405170j] [Citation(s) in RCA: 191] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Caishun Zhang
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering and ‡School of Chemistry, Dalian University of Technology, Dalian
116024 China
| | - Jianzhang Zhao
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering and ‡School of Chemistry, Dalian University of Technology, Dalian
116024 China
| | - Shuo Wu
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering and ‡School of Chemistry, Dalian University of Technology, Dalian
116024 China
| | - Zilong Wang
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering and ‡School of Chemistry, Dalian University of Technology, Dalian
116024 China
| | - Wanhua Wu
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering and ‡School of Chemistry, Dalian University of Technology, Dalian
116024 China
| | - Jie Ma
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering and ‡School of Chemistry, Dalian University of Technology, Dalian
116024 China
| | - Song Guo
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering and ‡School of Chemistry, Dalian University of Technology, Dalian
116024 China
| | - Ling Huang
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering and ‡School of Chemistry, Dalian University of Technology, Dalian
116024 China
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12
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Chen JS, Zhao GJ, Cook TR, Han KL, Stang PJ. Photophysical Properties of Self-Assembled Multinuclear Platinum Metallacycles with Different Conformational Geometries. J Am Chem Soc 2013; 135:6694-702. [DOI: 10.1021/ja402421w] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jun-Sheng Chen
- State Key Laboratory of Molecular
Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s
Republic of China
- University of the Chinese Academy of Sciences, Beijing 100049, People’s
Republic of China
| | - Guang-Jiu Zhao
- State Key Laboratory of Molecular
Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s
Republic of China
| | - Timothy R. Cook
- Department
of Chemistry, University of Utah, Salt
Lake City, Utah 84112, United
States
| | - Ke-Li Han
- State Key Laboratory of Molecular
Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s
Republic of China
| | - Peter J. Stang
- Department
of Chemistry, University of Utah, Salt
Lake City, Utah 84112, United
States
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13
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Cheng Y, Zhang X, Zhang W. Heteroatom Effects on Electronic Excited State Hydrogen Bonding of Fluorenone-Based Molecular Materials. HETEROATOM CHEMISTRY 2013. [DOI: 10.1002/hc.21075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yufei Cheng
- School of Materials Science and Engineering; Dalian University of Technology; Dalian; 116024; People's Republic of China
| | - Xiaoyu Zhang
- School of Materials Science and Engineering; Dalian University of Technology; Dalian; 116024; People's Republic of China
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14
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Time-Dependent Density Functional Theory Study on Hydrogen and Dihydrogen Bonding in Electronically Excited State of 2-Pyridone–Borane–Trimethylamine Cluster. J CLUST SCI 2013. [DOI: 10.1007/s10876-013-0572-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Sun J, Zhong F, Yi X, Zhao J. Efficient Enhancement of the Visible-Light Absorption of Cyclometalated Ir(III) Complexes Triplet Photosensitizers with Bodipy and Applications in Photooxidation and Triplet–Triplet Annihilation Upconversion. Inorg Chem 2013; 52:6299-310. [PMID: 23327589 DOI: 10.1021/ic302210b] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jifu Sun
- State Key Laboratory of Fine Chemicals,
School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling Gong Road, Dalian
116024, China
| | - Fangfang Zhong
- State Key Laboratory of Fine Chemicals,
School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling Gong Road, Dalian
116024, China
| | - Xiuyu Yi
- State Key Laboratory of Fine Chemicals,
School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling Gong Road, Dalian
116024, China
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals,
School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling Gong Road, Dalian
116024, China
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