51
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Liu L, Guo S, Ma J, Xu K, Zhao J, Zhang T. Broadband Visible-Light-Harvestingtrans-Bis(alkylphosphine) Platinum(II)-Alkynyl Complexes with Singlet Energy Transfer between BODIPY and Naphthalene Diimide Ligands. Chemistry 2014; 20:14282-95. [DOI: 10.1002/chem.201403780] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Indexed: 12/17/2022]
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52
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Sina AAI, Al-Rafia SMI, Ahmad MF, Paul RK, Islam SMS, Younus M, Raithby PR, Ho CL, Lo YH, Liu L, Li H, Wong WY. Synthesis, Structures and Properties of Novel Platinum(II) Acetylide Complexes and Polymers with Tri(tolyl)phosphine as the Auxiliary Ligand. J Inorg Organomet Polym Mater 2014. [DOI: 10.1007/s10904-014-0071-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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53
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Xu P, Wu H, Jia H, Ye S, Du P. Linear Bimetallic Alkynylplatinum(II) Terpyridyl Complexes Bearing p-Phenylene Ethynylene Oligomers: Synthesis, Characterization, Aggregation, and Photophysical Properties. Organometallics 2014. [DOI: 10.1021/om500115s] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Peng Xu
- Department of Materials Science and Engineering, Department
of Chemistry, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, People’s Republic of China 230026
| | - Haotian Wu
- Department of Materials Science and Engineering, Department
of Chemistry, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, People’s Republic of China 230026
| | - Hongxing Jia
- Department of Materials Science and Engineering, Department
of Chemistry, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, People’s Republic of China 230026
| | - Shifan Ye
- Department of Materials Science and Engineering, Department
of Chemistry, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, People’s Republic of China 230026
| | - Pingwu Du
- Department of Materials Science and Engineering, Department
of Chemistry, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, People’s Republic of China 230026
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54
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Rebane A, Drobizhev M, Makarov NS, Wicks G, Wnuk P, Stepanenko Y, Haley JE, Krein DM, Fore JL, Burke AR, Slagle JE, McLean DG, Cooper TM. Symmetry Breaking in Platinum Acetylide Chromophores Studied by Femtosecond Two-Photon Absorption Spectroscopy. J Phys Chem A 2014; 118:3749-3759. [DOI: 10.1021/jp5009658] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Aleksander Rebane
- Physics
Department, Montana State University, Bozeman, Montana 59717, United States
- National Institute of Chemical Physics and Biophysics, 12618 Tallinn, Estonia
| | - Mikhail Drobizhev
- Physics
Department, Montana State University, Bozeman, Montana 59717, United States
| | - Nikolay S. Makarov
- Physics
Department, Montana State University, Bozeman, Montana 59717, United States
| | - Geoffrey Wicks
- Physics
Department, Montana State University, Bozeman, Montana 59717, United States
| | - Pawel Wnuk
- Institute
of Physical Chemistry, Polish Academy of Sciences, Warsaw, 01-224, Poland
| | - Yuriy Stepanenko
- Institute
of Physical Chemistry, Polish Academy of Sciences, Warsaw, 01-224, Poland
| | - Joy E. Haley
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright Patterson
Air Force Base, Ohio 45433, United States
| | - Douglas M. Krein
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright Patterson
Air Force Base, Ohio 45433, United States
- General Dynamics
Information Technology, Dayton, Ohio 45431, United States
| | - Jennifer L. Fore
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright Patterson
Air Force Base, Ohio 45433, United States
- SOCHE Student Research
Program, Dayton, Ohio 45420, United States
| | - Aaron R. Burke
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright Patterson
Air Force Base, Ohio 45433, United States
| | - Jonathan E. Slagle
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright Patterson
Air Force Base, Ohio 45433, United States
- Science
Applications
International Corporation, Dayton, Ohio 45431, United States
| | - Daniel G. McLean
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright Patterson
Air Force Base, Ohio 45433, United States
- Science
Applications
International Corporation, Dayton, Ohio 45431, United States
| | - Thomas M. Cooper
- Materials
and Manufacturing Directorate, Air Force Research Laboratory, Wright Patterson
Air Force Base, Ohio 45433, United States
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55
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Xie P, Wang L, Huang Z, Guo F, Jin Q. Nonlinear Optical Properties of Conjugated Platinum(II) Acetylides with Multibranched Donor-Acceptor Structures. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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56
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Wu W, Liu L, Cui X, Zhang C, Zhao J. Red-light-absorbing diimine Pt(II) bisacetylide complexes showing near-IR phosphorescence and long-lived 3IL excited state of Bodipy for application in triplet-triplet annihilation upconversion. Dalton Trans 2014; 42:14374-9. [PMID: 24008767 DOI: 10.1039/c3dt51927a] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bodipy is used for the preparation of Pt(II) bisacetylide complexes which show strong absorption of visible light and long-lived triplet state. Room temperature (RT) near-IR phosphorescence of Bodipy was observed. The π-conjugation framework of visible light-harvesting Bodipy ligand was connected to the Pt(II) center by the C≡C bond. The complexes were used as triplet photosensitizers for triplet-triplet annihilation (TTA) upconversion.
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Affiliation(s)
- Wanhua Wu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China.
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57
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Yao D, Wang H, Guo J, Wang T, Zhang L, Shao J, Guo F. Synthesis and photophysical properties of platinum(II) arylacetylides with donor–acceptor structures. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.11.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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58
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Li Y, Dandu N, Liu R, Kilina S, Sun W. Synthesis and photophysics of reverse saturable absorbing heteroleptic iridium(iii) complexes bearing 2-(7-R-fluoren-2′-yl)pyridine ligands. Dalton Trans 2014; 43:1724-35. [DOI: 10.1039/c3dt52184b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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59
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Zhao J, Wu W, Sun J, Guo S. Triplet photosensitizers: from molecular design to applications. Chem Soc Rev 2013; 42:5323-51. [PMID: 23450221 DOI: 10.1039/c3cs35531d] [Citation(s) in RCA: 922] [Impact Index Per Article: 83.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Triplet photosensitizers (PSs) are compounds that can be efficiently excited to the triplet excited state which subsequently act as catalysts in photochemical reactions. The name is originally derived from compounds that were used to transfer the triplet energy to other compounds that have only a small intrinsic triplet state yield. Triplet PSs are not only used for triplet energy transfer, but also for photocatalytic organic reactions, photodynamic therapy (PDT), photoinduced hydrogen production from water and triplet-triplet annihilation (TTA) upconversion. A good PS should exhibit strong absorption of the excitation light, a high yield of intersystem crossing (ISC) for efficient production of the triplet state, and a long triplet lifetime to allow for the reaction with a reactant molecule. Most transition metal complexes show efficient ISC, but small molar absorption coefficients in the visible spectral region and short-lived triplet excited states, which make them unsuitable as triplet PSs. One obstacle to the development of new triplet PSs is the difficulty in predicting the ISC of chromophores, especially of organic compounds without any heavy atoms. This review article summarizes some molecular design rationales for triplet PSs, based on the molecular structural factors that facilitate ISC. The design of transition metal complexes with large molar absorption coefficients in the visible spectral region and long-lived triplet excited states is presented. A new method of using a spin converter to construct heavy atom-free organic triplet PSs is discussed, with which ISC becomes predictable, C60 being an example. To enhance the performance of triplet PSs, energy funneling based triplet PSs are proposed, which show broadband absorption in the visible region. Applications of triplet PSs in photocatalytic organic reactions, hydrogen production, triplet-triplet annihilation upconversion and luminescent oxygen sensing are briefly introduced.
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Affiliation(s)
- Jianzhang Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, E 208 Western Compus, 2 Ling-Gong Road, Dalian 116012, P.R. China.
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60
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Zhang Y, Blacque O, Venkatesan K. Highly Efficient Deep-Blue Emitters Based oncisandtransN-Heterocyclic Carbene PtIIAcetylide Complexes: Synthesis, Photophysical Properties, and Mechanistic Studies. Chemistry 2013; 19:15689-701. [DOI: 10.1002/chem.201302196] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 07/25/2013] [Indexed: 11/07/2022]
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61
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Shelton AH, Price RS, Brokmann L, Dettlaff B, Schanze KS. High efficiency platinum acetylide nonlinear absorption chromophores covalently linked to poly(methyl methacrylate). ACS APPLIED MATERIALS & INTERFACES 2013; 5:7867-7874. [PMID: 23899438 DOI: 10.1021/am401834f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report three platinum acetylide acrylate monomers containing known two-photon absorption (TPA) chromophores and their covalent incorporation into polymers via free radical polymerization with methyl methacrylate. The photophysical properties of the platinum acetylide monomers and resulting poly(methyl methacrylate) (PMMA) copolymers were investigated to determine if the one- and two-photon photophysical properties of the chromophores were maintained in the copolymers. The photophysical properties of the series of copolymers were studied in solution and solid state with minimum shifts exhibited in the ground state absorption, photoluminescence, and triplet-triplet transient absorption spectra. The polymer films displayed markedly stronger phosphorescence and longer triplet excited state lifetimes than the polymers in solution or the monomers. The incorporation of the platinum acetylide chromophores into the PMMA copolymers allows the materials to be cast as thin films or into free-standing monoliths. Films with ~3.6 μm in thickness and monoliths with 1 mm path length were fabricated and examined. The nonlinear absorption responses of the polymers in solution were measured via the nanosecond z-scan method, and the solid state polymer monoliths were measured via nonlinear transmittance. Both measurements indicate that the polymers exhibited strong transmittance attenuation at input pulse energies exceeding 100 μJ.
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Affiliation(s)
- Abigail H Shelton
- Department of Chemistry and Center for Macromolecular Science and Engineering, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, USA
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62
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Li Y, Dandu N, Liu R, Hu L, Kilina S, Sun W. Nonlinear absorbing cationic iridium(III) complexes bearing benzothiazolylfluorene motif on the bipyridine (N∧N) ligand: synthesis, photophysics and reverse saturable absorption. ACS APPLIED MATERIALS & INTERFACES 2013; 5:6556-6570. [PMID: 23763472 DOI: 10.1021/am401133p] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Four new heteroleptic cationic Ir(III) complexes bearing benzothiazolylfluorene motif on the bipyridine (N∧N) (1 and 2) and phenylpyridine (C∧N) (3 and 4) ligands are synthesized and characterized. The influence of the position of the substituent and the extent of π-conjugation on the photophysics of these complexes is systematically investigated by spectroscopic methods and simulated by time-dependent density functional theory (TDDFT). The complexes exhibit ligand-centered (1)π,π* transitions with admixtures of (1)ILCT (π(benzothiazolylfluorene) → π*(bpy)) and (1)MLCT (metal-to-ligand charge transfer) characters below 475 nm, and very weak (1,3)MLCT and (1,3)LLCT (ligand-to-ligand charge transfer) transitions above 475 nm. The emission of these complexes at room temperature in CH2Cl2 solutions is ascribed to be predominantly from the (3)MLCT/(3)LLCT states for 1 and from the (3)π,π* state for 2, while the emitting state of 3 and 4 are assigned to be an admixture of (3)MLCT, (3)LLCT, and (3)π,π* characters. The variations of the photophysical properties of 1-4 are attributed to different degrees of π-conjugation in the bipyridine and phenylpyridine ligands induced by different positions of the benzothiazolylfluorenyl substituents on the bipyridine ligand and different extents of π-conjugation in the phenylpyridine ligands, which alters the energy and lifetime of the lowest singlet and triplet excited states. 1-4 all possess broadband transient absorption (TA) upon nanosecond laser excitation, which extends from the visible to the NIR region. Therefore, 1-4 all exhibit strong reverse saturable absorption (RSA) at 532 nm for ns laser pulses. However, the TA of complexes 1, 2, and 3 are much stronger than that of 4. This feature, combined with the difference in ground-state absorption and triplet excited-state quantum yield, result in the difference in RSA strength, which follows this trend: 1 ≈ 2 ≈ 3 > 4. Therefore, complexes 1-3 are strong reverse saturable absorbers at 532 nm and could potentially be used as broadband nonlinear absorbing materials.
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Affiliation(s)
- Yuhao Li
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
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63
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Liu X, Sun W. Platinum(II) Complexes Bearing 2‐(9,9‐Dihexadecyl‐7‐R‐fluoren‐2‐yl)‐1,10‐phenanthroline Ligands: Synthesis, Photophysics and Reverse Saturable Absorption. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300466] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xu‐Guang Liu
- Department of Chemistry and Biochemistry, North Dokota State University, Fargo, ND 58108‐6050, USA, Fax: +1‐701‐231‐8831, http://www.ndsu.nodak.edu/chemistry/people/faculty/sun.html
| | - Wenfang Sun
- Department of Chemistry and Biochemistry, North Dokota State University, Fargo, ND 58108‐6050, USA, Fax: +1‐701‐231‐8831, http://www.ndsu.nodak.edu/chemistry/people/faculty/sun.html
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64
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Li Z, Badaeva E, Ugrinov A, Kilina S, Sun W. Platinum Chloride Complexes Containing 6-[9,9-Di(2-ethylhexyl)-7-R-9H-fluoren-2-yl]-2,2′-bipyridine Ligand (R = NO2, CHO, Benzothiazol-2-yl, n-Bu, Carbazol-9-yl, NPh2): Tunable Photophysics and Reverse Saturable Absorption. Inorg Chem 2013; 52:7578-92. [DOI: 10.1021/ic400683u] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhongjing Li
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota
58108-6050, United States
| | - Ekaterina Badaeva
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota
58108-6050, United States
| | - Angel Ugrinov
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota
58108-6050, United States
| | - Svetlana Kilina
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota
58108-6050, United States
| | - Wenfang Sun
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota
58108-6050, United States
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65
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Kindahl T, Öhgren J, Lopes C, Eliasson B. Synthesis, optical power limiting, and DFT calculations of triplet–triplet absorption of three novel Pt(II)-diacetylide chromophores. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.02.105] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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66
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Zhang B, Li Y, Liu R, Pritchett TM, Haley JE, Sun W. Extending the bandwidth of reverse saturable absorption in platinum complexes using two-photon-initiated excited-state absorption. ACS APPLIED MATERIALS & INTERFACES 2013; 5:565-572. [PMID: 23273050 DOI: 10.1021/am3018724] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Pt(II) complexes bearing 4-(7-(benzothiazol-2'-yl)-9,9-diethylfluoren-2-yl)-2,2':6',2″-terpyridine or 4-(7-(benzothiazol-2'-yl)-9,9-diethylfluoren-2-yl)ethynyl-2,2':6',2″-terpyridine ligand exhibit strong reverse saturable absorption in the visible spectral region and large two-photon initiated excited-state absorption in the near-IR region. They are promising broadband nonlinear absorbing materials from the visible to the near-IR region. The extended π-conjugation in complex 2 that has a C≡C linker between the terpyridine ligand and the 4-(7-(benzothiazol-2'-yl)-9,9-diethylfluoren-2-yl) substituent significantly increases the two-photon absorption cross sections (σ(2)), making it among the strongest of two-photon absorbing Pt(II) complexes.
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Affiliation(s)
- Bingguang Zhang
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
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67
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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: 109] [Impact Index Per Article: 9.9] [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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68
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Li Z, Sun W. Synthesis, photophysics, and reverse saturable absorption of platinum complexes bearing extended π-conjugated C^N^N ligands. Dalton Trans 2013; 42:14021-9. [DOI: 10.1039/c3dt51430g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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69
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Charge-separated excited states in platinum(II) chromophores: Photophysics, formation, stabilization and utilization in solar energy conversion. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.07.010] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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70
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Prusakova V, McCusker CE, Castellano FN. Ligand-Localized Triplet-State Photophysics in a Platinum(II) Terpyridyl Perylenediimideacetylide. Inorg Chem 2012; 51:8589-98. [DOI: 10.1021/ic301169t] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Valentina Prusakova
- Department of Chemistry
and Center for Photochemical
Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Catherine E. McCusker
- Department of Chemistry
and Center for Photochemical
Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Felix N. Castellano
- Department of Chemistry
and Center for Photochemical
Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
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71
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Liu XG, Sun W. Synthesis and photophysics of platinum(II) complexes bearing 2-(7-(4-R-phenylethynyl)-9,9-dihexadecyl-fluoren-2-yl)-1,10-phenanthroline ligand. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.03.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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72
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Li Z, Badaeva E, Zhou D, Bjorgaard J, Glusac KD, Killina S, Sun W. Tuning photophysics and nonlinear absorption of bipyridyl platinum(II) bisstilbenylacetylide complexes by auxiliary substituents. J Phys Chem A 2012; 116:4878-89. [PMID: 22519843 DOI: 10.1021/jp302194r] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The photophysics of six bipyridyl platinum(II) bisstilbenylacetylide complexes with different auxiliary substituents are reported. These photophysical properties have been investigated in detail by UV-vis, photoluminescence (both at room temperature and at 77 K) and transient absorption (nanosecond and femtosecond) spectroscopies, as well as by linear response time-dependent density functional theory (TD-DFT) calculations. The photophysics of the complexes are found to be dominated by the singlet and triplet π,π* transitions localized at the stilbenylacetylide ligands with strong admixture of the metal-to-ligand (MLCT) and ligand-to-ligand (LLCT) charge-transfer characters. The interplay between the π,π* and MLCT/LLCT states depends on the electron-withdrawing or -donating properties of the substituents on the stilbenylacetylide ligands. All complexes exhibit remarkable reverse saturable absorption (RSA) at 532 nm for nanosecond laser pulses, with the complex that contains the NPh(2) substituent giving the strongest RSA and the complex with NO(2) substituent showing the weakest RSA.
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Affiliation(s)
- Zhongjing Li
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, USA
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73
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Ji S, Wu W, Zhao J, Guo H, Wu W. Efficient Triplet-Triplet Annihilation Upconversion with Platinum(II) Bis(arylacetylide) Complexes That Show Long-Lived Triplet Excited States. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200109] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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74
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Zhang B, Li Y, Liu R, Pritchett TM, Azenkeng A, Ugrinov A, Haley JE, Li Z, Hoffmann MR, Sun W. Synthesis, Structural Characterization, Photophysics, and Broadband Nonlinear Absorption of a Platinum(II) Complex with the 6-(7-Benzothiazol-2′-yl-9,9-diethyl-9 H-fluoren-2-yl)-2,2′-bipyridinyl Ligand. Chemistry 2012; 18:4593-606. [DOI: 10.1002/chem.201103095] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Indexed: 11/06/2022]
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75
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Liu R, Azenkeng A, Li Y, Sun W. Long-lived platinum(ii) diimine complexes with broadband excited-state absorption: efficient nonlinear absorbing materials. Dalton Trans 2012; 41:12353-7. [DOI: 10.1039/c2dt31267k] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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76
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Guo H, Li Q, Ma L, Zhao J. Fluorene as π-conjugation linker in N^N Pt(ii) bisacetylide complexes and their applications for triplet–triplet annihilation based upconversion. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32074f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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77
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Li JB, Dong XY, Cao LH, Zang SQ, Mak TCW. N-donor ligand mediated assembly of divalent zinc and cadmium coordination polymers based on 2,3,2′,3′-thiaphthalic acid: structures and properties. CrystEngComm 2012. [DOI: 10.1039/c2ce06705f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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78
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Saghatforoush L, Valencia L, Chalabian F, Ghammamy S, Khaledi L. Synthesis, crystal structure, and biological activity of 4′-chloro-2,2′ : 6′,2″-terpyridine (Cltpy) as tridentate ligand in a Cd(II) complex. J COORD CHEM 2011. [DOI: 10.1080/00958972.2011.619008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- L.A. Saghatforoush
- a Chemistry Department , Payame Noor University , 19395-4697 Tehran, Islam Republic of Iran
| | - L. Valencia
- b Departamento de Quimica Inorganica , Facultad de Quimica, Universidade de Vigo , 36310 Vigo Pontevedra, Spain
| | - F. Chalabian
- c Department of Biology , North Tehran Branch, Islamic Azad University , Tehran, Iran
| | - S. Ghammamy
- d Department of Chemistry , Ardabil Branch, Islamic Azad University , Ardabil, Iran
| | - L.Z. Khaledi
- a Chemistry Department , Payame Noor University , 19395-4697 Tehran, Islam Republic of Iran
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79
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Synthesis, Characterization, Crystal Structure, and Biological Studies of a Cadmium(II) Complex with a Tridentate Ligand 4'-Chloro-2,2':6',2''-Terpyridine. Bioinorg Chem Appl 2011; 2011:803292. [PMID: 21738495 PMCID: PMC3119424 DOI: 10.1155/2011/803292] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 03/23/2011] [Accepted: 03/24/2011] [Indexed: 11/22/2022] Open
Abstract
A new Cd(II) complex with the ligand 4′-chloro-2,2′6′,2′′-terpyridine (Cltpy), [Cd(Cltpy)(I)2], has been synthesized and characterized by CHN elemental analysis, 1H-NMR, 13C-NMR, and IR spectroscopy and structurally analyzed by X-ray single-crystal diffraction. The single-crystal X-ray analyses show that the coordination number in complex is five with three terpyridine (Cltpy) N-donor atoms and two iodine atoms. The antibacterial activities of Cltpy and its Cd(II) complex are tested against different bacteria.
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80
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Wong KMC, Yam VWW. Self-assembly of luminescent alkynylplatinum(II) terpyridyl complexes: modulation of photophysical properties through aggregation behavior. Acc Chem Res 2011; 44:424-34. [PMID: 21462975 DOI: 10.1021/ar100130j] [Citation(s) in RCA: 417] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Complexes of platinum(II) with polypyridine (that is, the multidentate ligands related to pyridine, such as bipyridine or terpyridine) have rich photophysical properties. These compounds are able to give different crystal forms in the solid state: this polymorphism is evident in the broad range of colors that can be observed in solid samples. Because of the square-planar coordination geometry of the metal center, Pt···Pt as well as π-π interactions between the chromophoric polypyridyl platinum(II) moieties are thought to contribute to the polymorphism. Owing to limited solubility, metal···metal interactions in platinum(II) polypyridyl systems had been mainly studied in the solid state, but our preparation of more soluble complexes has enabled detailed spectroscopic examinations in solution. In this Account, we describe our development of these alkynylplatinum(II) terpyridyl complexes and their unique spectral properties. A series of square-planar platinum(II) terpyridyl complexes with enhanced solubility due to the presence of the alkynyl group exhibited intense emission in solution. The lowest energy absorption and emission bands are suggested to originate from the dπ(Pt) → π*(terpy) metal-to-ligand charge transfer (MLCT) and π(C≡C-C(6)H(4)-R) → π*(terpy) ligand-to-ligand charge transfer (LLCT) transitions. In addition to polymorphism and a wide range of spectral properties, these complexes also exhibit "solvatochromism" and "solvatoluminescence". They show remarkable color changes and luminescence enhancement when the diethyl ether content in a solvent mixture is varied, even as the concentration of the platinum(II) complex is held constant. The dramatic color changes and luminescence enhancement are tentatively suggested to originate from a metal-metal-to-ligand charge transfer (MMLCT) transition: reduced solvation (caused by an increase in the fraction of diethyl ether, which is the nonsolvating component of the liquid) is thought to increase Pt···Pt and π-π stacking interactions that arise from ground-state self-assembly or aggregate formation. The absorbance and luminescence wavelengths in these solvent-induced self-assemblies are also found to be dependent on the nature of the anions. Thus, counterions play an important role in governing the degree of self-assembly and the extent of interactions within these aggregates. Several polymers carrying multiple negatively charged functional groups (under basic conditions) as well as oligonucleotides have been shown to induce the aggregation and self-assembly of the positively charged water-soluble alkynylplatinum(II) terpyridyl complexes. The driving force for the induced aggregation and self-assembly is electrostatic binding of the complex molecules to the polymer, which brings the cations into a close proximity that induces Pt···Pt and π-π interactions and gives rise to remarkable color changes and luminescence enhancement. The spectral changes are shown to be related to the properties of both the complexes and the polymers. Upon electrostatic interaction, the platinum(II) complex cations are also found to stabilize the polymers and biopolymers in a helical conformation through Pt···Pt and π-π interactions. The influence on their secondary structure is revealed by significant circular dichroism (CD) signal enhancement.
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Affiliation(s)
- Keith Man-Chung Wong
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Vivian Wing-Wah Yam
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
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81
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Xie ZF, Bai FQ, Wang J, Zhang HX. DFT/TDDFT investigation of the electronic structures and optoelectronic properties of phosphorescent iridium (III) complexes with non-conjugated cyclometalated carbene ligands. Mol Phys 2011. [DOI: 10.1080/00268976.2011.582848] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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82
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Roberts MN, Nagle JK, Majewski MB, Finden JG, Branda NR, Wolf MO. Charge Transfer and Intraligand Excited State Interactions in Platinum-Sensitized Dithienylethenes. Inorg Chem 2011; 50:4956-66. [DOI: 10.1021/ic200200j] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew N. Roberts
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Jeffrey K. Nagle
- Department of Chemistry, Bowdoin College, Brunswick, Maine 04011, United States
| | - Marek B. Majewski
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Jeremy G. Finden
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Neil R. Branda
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Michael O. Wolf
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
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83
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Zhou GJ, Wong WY. Organometallic acetylides of Pt(II), Au(I) and Hg(II) as new generation optical power limiting materials. Chem Soc Rev 2011; 40:2541-66. [PMID: 21264386 DOI: 10.1039/c0cs00094a] [Citation(s) in RCA: 217] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Within the scope of nonlinear optics, optical power limiting (OPL) materials are commonly regarded as an important class of compounds which can protect the delicate optical sensors or human eyes from sudden exposure to damaging intense laser beams. Recent efforts have been devoted to developing organometallic acetylide complexes, dendrimers and polymers as high performance OPL materials of the next generation which can favorably optimize the optical limiting/transparency trade-off issue. These metallated materials offer a new avenue towards a new family of highly transparent homo- and heterometallic optical limiters with good solution processability which outperform those of current state-of-the-art visible-light-absorbing competitors such as fullerenes, metalloporphyrins and metallophthalocyanines. This critical review aims to provide a detailed account on the recent advances of these novel OPL chromophores. Their OPL activity was shown to depend strongly on the electronic characters of the aryleneethynylene ligand and transition metal moieties as well as the conjugation chain length of the compounds. Strategies including copolymerization with other transition metals, change of structural geometry, use of a dendritic platform and variation of the type and content of transition metal ions would strongly govern their photophysical behavior and improve the resulting OPL responses. Special emphasis is placed on the structure-OPL response relationships of these organometallic acetylide materials. The research endeavors for realizing practical OPL devices based on these materials have also been presented. This article concludes with perspectives on the current status of the field, as well as opportunities that lie just beyond its frontier (106 references).
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Affiliation(s)
- Gui-Jiang Zhou
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter and Department of Chemistry, Faculty of Science, Xi'an Jiaotong University, Xi'an 710049, P.R. China.
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84
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Wen HM, Wu YH, Xu LJ, Zhang LY, Chen CN, Chen ZN. Luminescent square-planar platinum(ii) complexes with tridentate 3-bis(2-pyridylimino)isoindoline and monodentate N-heterocyclic ligands. Dalton Trans 2011; 40:6929-38. [DOI: 10.1039/c1dt10385g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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85
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Sun H, Guo H, Wu W, Liu X, Zhao J. Coumarin phosphorescence observed with N⁁N Pt(ii) bisacetylide complex and its applications for luminescent oxygen sensing and triplet–triplet-annihilation based upconversion. Dalton Trans 2011; 40:7834-41. [DOI: 10.1039/c1dt10490j] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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86
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Chan CKM, Tao CH, Li KF, Wong KMC, Zhu N, Cheah KW, Yam VWW. Design, synthesis, characterization, luminescence and non-linear optical (NLO) properties of multinuclear platinum(ii) alkynyl complexes. Dalton Trans 2011; 40:10670-85. [DOI: 10.1039/c1dt10784d] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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87
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Phillips V, Baddour FG, Lasanta T, López-de-Luzuriaga JM, Bacon JW, Golen JA, Rheingold AL, Doerrer LH. Metal–metal stacking patterns between and with [Pt(tpy)X]+ cations. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.07.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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88
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Guo H, Muro-Small ML, Ji S, Zhao J, Castellano FN. Naphthalimide phosphorescence finally exposed in a platinum(II) diimine complex. Inorg Chem 2010; 49:6802-4. [PMID: 20604513 DOI: 10.1021/ic101107b] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Room temperature (RT) phosphorescence is observed from a naphthalimide species for the first time in the square-planar chromophore Pt(dbbpy)(C[triple bond]C-NI)(2), where NI = N-butyl-4-ethynylnaphthalimide and dbbpy = 4,4'-di-tert-butyl-2,2'-bipyridine. The combination of static and time-resolved absorption and photoluminescence data is uniformly consistent with triplet-state photophysics localized on an appended C[triple bond]C-NI unit following excitation into the low-energy absorption bands. This molecule features rather impressive long-lifetime, high-quantum-efficiency NI-based RT phosphorescence (tau = 124 micros; Phi = 0.215) centered at 621 nm, exemplifying how the platinum acetylide linkage strongly promotes intersystem crossing in the NI subunit, representative of a class of molecules whose excited states are typically dominated by singlet fluorescence.
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Affiliation(s)
- Huimin Guo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 158 Zhongshan Road, Dalian 116012, People's Republic of China
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89
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Liu R, Li Y, Li Y, Zhu H, Sun W. Photophysics and Nonlinear Absorption of Cyclometalated 4,6-Diphenyl-2,2′-bipyridyl Platinum(II) Complexes with Different Acetylide Ligands. J Phys Chem A 2010; 114:12639-45. [DOI: 10.1021/jp107348h] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rui Liu
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States, and Department of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People’s Republic of China
| | - Yunjing Li
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States, and Department of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People’s Republic of China
| | - Yuhao Li
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States, and Department of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People’s Republic of China
| | - Hongjun Zhu
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States, and Department of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People’s Republic of China
| | - Wenfang Sun
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States, and Department of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People’s Republic of China
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90
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Zhou G, He Y, Yao B, Dang J, Wong WY, Xie Z, Zhao X, Wang L. Electrophosphorescent Heterobimetallic Oligometallaynes and Their Applications in Solution-Processed Organic Light-Emitting Devices. Chem Asian J 2010; 5:2405-14. [DOI: 10.1002/asia.201000341] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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91
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Yi J, Zhang B, Shao P, Li Y, Sun W. Synthesis and Photophysics of Platinum(II) 6-Phenyl-4-(9,9-dihexylfluoren-2-yl)-2,2′-bipyridine Complexes with Phenothiazinyl Acetylide Ligand. J Phys Chem A 2010; 114:7055-62. [DOI: 10.1021/jp103639x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Jing Yi
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050
| | - Bingguang Zhang
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050
| | - Pin Shao
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050
| | - Yunjing Li
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050
| | - Wenfang Sun
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050
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92
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Wang X, Goeb S, Ji Z, Castellano FN. Excited State Absorption Properties of Pt(II) Terpyridyl Complexes Bearing π-Conjugated Arylacetylides. J Phys Chem B 2010; 114:14440-9. [DOI: 10.1021/jp101528z] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xianghuai Wang
- Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403
| | - Sébastien Goeb
- Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403
| | - Zhiqiang Ji
- Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403
| | - Felix N. Castellano
- Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403
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93
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Pritchett TM, Sun W, Zhang B, Ferry MJ, Li Y, Haley JE, Mackie DM, Shensky W, Mott AG. Excited-state absorption of a bipyridyl platinum(II) complex with alkynyl-benzothiazolylfluorene units. OPTICS LETTERS 2010; 35:1305-1307. [PMID: 20436550 DOI: 10.1364/ol.35.001305] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The singlet excited-state lifetime of a bipyridyl platinum(II) complex containing two alkynyl-benzothiazolylfluorene units was determined to be 145+/-105 ps by fitting femtosecond transient difference absorption data, and the triplet quantum yield was measured to be 0.14. A ground-state absorption cross section of 6.1 x 10(-19) cm(2) at 532 nm was deduced from UV-visible absorption data. Excited-state absorption cross sections of (6.7+/-0.1) x 10(-17) cm(2) (singlet) and (4.6+/-0.1) x 10(-16) cm(2) (triplet) were obtained by using a five-level dynamic model to fit open-aperture Z scans at picosecond and nanosecond pulse widths and a variety of pulse energies. For this complex, the ratio of the triplet excited-state absorption cross section to the ground-state absorption cross section--long used as a figure of merit for reverse saturable absorbers--thus stands at 754, to our knowledge the largest ever reported at 532 nm wavelength.
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Affiliation(s)
- Timothy M Pritchett
- U. S. Army Research Laboratory, RDRL-SEE-M, 2800 Powder Mill Road, Adelphi, Maryland 20783-1197, USA.
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94
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Tong G, Law YC, Kui S, Zhu N, Leung KH, Phillips DL, Che CM. Ligand-to-Ligand Charge-Transfer Transitions of Platinum(II) Complexes with Arylacetylide Ligands with Different Chain Lengths: Spectroscopic Characterization, Effect of Molecular Conformations, and Density Functional Theory Calculations. Chemistry 2010; 16:6540-54. [DOI: 10.1002/chem.200903046] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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95
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Shao P, Li Y, Yi J, Pritchett TM, Sun W. Cyclometalated Platinum(II) 6-Phenyl-4-(9,9-dihexylfluoren-2-yl)-2,2′-bipyridine Complexes: Synthesis, Photophysics, and Nonlinear Absorption. Inorg Chem 2010; 49:4507-17. [DOI: 10.1021/ic902281a] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pin Shao
- Department of Chemistry and Molecular Biology, North Dakota State University, Fargo, North Dakota 58108-6050
| | - Yunjing Li
- Department of Chemistry and Molecular Biology, North Dakota State University, Fargo, North Dakota 58108-6050
| | - Jing Yi
- Department of Chemistry and Molecular Biology, North Dakota State University, Fargo, North Dakota 58108-6050
| | - Timothy M. Pritchett
- U.S. Army Research Laboratory, AMSRD-ARL-SE-EM, 2800 Powder Mill Road, Adelphi, Maryland 20783-1197
| | - Wenfang Sun
- Department of Chemistry and Molecular Biology, North Dakota State University, Fargo, North Dakota 58108-6050
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96
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Glimsdal E, Carlsson M, Kindahl T, Lindgren M, Lopes C, Eliasson B. Luminescence, Singlet Oxygen Production, and Optical Power Limiting of Some Diacetylide Platinum(II) Diphosphine Complexes. J Phys Chem A 2010; 114:3431-42. [DOI: 10.1021/jp9091514] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eirik Glimsdal
- Department of Physics, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway, Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden, and Division of Information Systems, Swedish Defence Research Agency (FOI), SE-581 11 Linköping, Sweden
| | - Marcus Carlsson
- Department of Physics, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway, Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden, and Division of Information Systems, Swedish Defence Research Agency (FOI), SE-581 11 Linköping, Sweden
| | - Tomas Kindahl
- Department of Physics, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway, Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden, and Division of Information Systems, Swedish Defence Research Agency (FOI), SE-581 11 Linköping, Sweden
| | - Mikael Lindgren
- Department of Physics, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway, Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden, and Division of Information Systems, Swedish Defence Research Agency (FOI), SE-581 11 Linköping, Sweden
| | - Cesar Lopes
- Department of Physics, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway, Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden, and Division of Information Systems, Swedish Defence Research Agency (FOI), SE-581 11 Linköping, Sweden
| | - Bertil Eliasson
- Department of Physics, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway, Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden, and Division of Information Systems, Swedish Defence Research Agency (FOI), SE-581 11 Linköping, Sweden
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97
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Hijazi A, Walther ME, Besnard C, Wenger OS. Spectroscopy and photoredox properties of soluble platinum(II) alkynyl complexes. Polyhedron 2010. [DOI: 10.1016/j.poly.2009.10.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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98
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Larew NA, Van Wassen AR, Wetzel KE, Machala MM, Cummings SD. Solution luminescence from chloro(2,2′:6′,2″-terpyridine)platinum(II) chloride in micelles. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2009.09.049] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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99
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Mathew I, Sun W. Photophysics in solution and Langmuir–Blodgett film and vapochromic behavior of the Pt(ii) 2,6-bis(N-alkylbenzimidazol-2′-yl)pyridine complexes with different alkyl chains and counter anions. Dalton Trans 2010; 39:5885-98. [DOI: 10.1039/b923203f] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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100
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Chan KHY, Chow HS, Wong KMC, Yeung MCL, Yam VWW. Towards thermochromic and thermoresponsive near-infrared (NIR) luminescent molecular materials through the modulation of inter- and/or intramolecular Pt⋯Pt and π–π interactions. Chem Sci 2010. [DOI: 10.1039/c0sc00208a] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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