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Livshits MY, Wang L, Vittardi SB, Ruetzel S, King A, Brixner T, Rack JJ. An excited state dynamics driven reaction: wavelength-dependent photoisomerization quantum yields in [Ru(bpy) 2(dmso) 2] 2. Chem Sci 2020; 11:5797-5807. [PMID: 34094082 PMCID: PMC8159332 DOI: 10.1039/d0sc00551g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 05/17/2020] [Indexed: 12/21/2022] Open
Abstract
We report the excited-state behavior of a structurally simple bis-sulfoxide complex, cis-S,S-[Ru(bpy)2(dmso)2]2+, as investigated by femtosecond pump-probe spectroscopy. The results reveal that a single photon prompts phototriggered isomerization of one or both dmso ligands to yield a mixture of cis-S,O-[Ru(bpy)2(dmso)2]2+ and cis-O,O-[Ru(bpy)2(dmso)2]2+. The quantum yields of isomerization of each product and relative product distribution are dependent upon the excitation wavelength, with longer wavelengths favoring the double isomerization product, cis-O,O-[Ru(bpy)2(dmso)2]2+. Transient absorption measurements on cis-O,O-[Ru(bpy)2(dmso)2]2+ do not reveal an excited-state isomerization pathway to produce either the S,O or S,S isomers. Femtosecond pulse shaping experiments reveal no change in the product distribution. Pump-repump-probe transient absorption spectroscopy of cis-S,S-[Ru(bpy)2(dmso)2]2+ shows that a pump-repump time delay of 3 ps dramatically alters the S,O : O,O product ratio; pump-repump-probe transient absorption spectroscopy of cis-O,O-[Ru(bpy)2(dmso)2]2+ with a time delay of 3 ps uncovers an excited-state isomerization pathway to produce the S,O isomer. In conjunction with low-temperature steady-state emission spectroscopy, these results are interpreted in the context of an excited-state bifurcating pathway, in which the isomerization product distribution is determined not by thermodynamics, but rather as a dynamics driven reaction.
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Affiliation(s)
- Maksim Y Livshits
- Department of Chemistry and Chemical Biology, University of New Mexico Albuquerque NM 87131 USA
- Department of Chemistry and Biochemistry, Ohio University Athens OH 45701 USA
| | - Lei Wang
- Department of Chemistry and Biochemistry, Ohio University Athens OH 45701 USA
| | - Sebastian B Vittardi
- Department of Chemistry and Chemical Biology, University of New Mexico Albuquerque NM 87131 USA
| | - Stefan Ruetzel
- Institut für Physikalische und Theoretische Chemie, Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Albert King
- Department of Chemistry and Chemical Biology, University of New Mexico Albuquerque NM 87131 USA
| | - Tobias Brixner
- Institut für Physikalische und Theoretische Chemie, Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Jeffrey J Rack
- Department of Chemistry and Chemical Biology, University of New Mexico Albuquerque NM 87131 USA
- Department of Chemistry and Biochemistry, Ohio University Athens OH 45701 USA
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Romero MJ, Suárez V, Fernández-Fariña S, Maneiro M, Martínez-Núñez E, Zaragoza G, González-Noya AM, Pedrido R. Effect of the Metal Ion on the Enantioselectivity and Linkage Isomerization of Thiosemicarbazone Helicates. Chemistry 2017; 23:4884-4892. [PMID: 28207181 DOI: 10.1002/chem.201700195] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Indexed: 11/11/2022]
Abstract
The effect of the metal ion and ligand design on the enantioselectivity and linkage isomerization of neutral cobalt and zinc bisthiosemicarbazone metallohelicates has been investigated in this work. The electrochemical synthesis has afforded the enantioselective formation of chirally pure cobalt helicates, and the ΛΛ isomer of a single enantiomer has been crystallized as only product for the cobalt methyl-substituted thiosemicarbazone helicate. Interestingly linkage isomers have been formed from zinc ethyl-substituted thiosemicarbazone helicate enantiomers for the first time. The co-existence of these isomers has been evaluated from the point of view of both experimental results and computational calculations.
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Affiliation(s)
- María J Romero
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, 15782, Spain
| | - Vanesa Suárez
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, 15782, Spain
| | - Sandra Fernández-Fariña
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, 15782, Spain
| | - Marcelino Maneiro
- Departamento de Química Inorgánica, Facultade de Ciencias, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Emilio Martínez-Núñez
- Departamento de Química Física, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, 15782, Spain
| | - Guillermo Zaragoza
- Unidade de Difracción de Raios X, Edificio CACTUS, Universidade de Santiago de Compostela, Campus Sur, Santiago de Compostela, Galicia, 15782, Spain
| | - Ana M González-Noya
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, 15782, Spain
| | - Rosa Pedrido
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, 15782, Spain
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Li H, Zhang L, Zheng L, Li X, Fan X, Zhao Y. Photoisomerization Mechanism of Ruthenium Sulfoxide Complexes: Role of the Metal-Centered Excited State in the Bond Rupture and Bond Construction Processes. Chemistry 2016; 22:14285-92. [DOI: 10.1002/chem.201602441] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Huifang Li
- Key Laboratory of Organo-Pharmaceutical Chemistry; Gannan Normal University; Ganzhou 341000 P. R. China
| | - Lisheng Zhang
- Key Laboratory of Organo-Pharmaceutical Chemistry; Gannan Normal University; Ganzhou 341000 P. R. China
| | - lvyin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry; Gannan Normal University; Ganzhou 341000 P. R. China
| | - Xun Li
- Key Laboratory of Organo-Pharmaceutical Chemistry; Gannan Normal University; Ganzhou 341000 P. R. China
| | - Xiaolin Fan
- Key Laboratory of Organo-Pharmaceutical Chemistry; Gannan Normal University; Ganzhou 341000 P. R. China
| | - Yi Zhao
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Xiamen University; Xiamen 361005 P. R. China
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4
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Swaminathan S, Garcia-Amorós J, Thapaliya ER, Nonell S, Captain B, Raymo FM. Tuning the Activation Wavelength of Photochromic Oxazines. Chemphyschem 2016; 17:1852-9. [DOI: 10.1002/cphc.201600141] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Subramani Swaminathan
- Laboratory for Molecular Photonics, Department of Chemistry; University of Miami; 1301 Memorial Drive Florida 33146-0431 USA
| | - Jaume Garcia-Amorós
- Laboratory for Molecular Photonics, Department of Chemistry; University of Miami; 1301 Memorial Drive Florida 33146-0431 USA
- Grup de Materials Orgànics; Institut de Nanociència i Nanotecnologia (IN2UB); Departament de Química Orgànica; Universitat de Barcelona; Martí i Franqués 1 E-08028 Barcelona Spain
| | - Ek Raj Thapaliya
- Laboratory for Molecular Photonics, Department of Chemistry; University of Miami; 1301 Memorial Drive Florida 33146-0431 USA
| | - Santi Nonell
- Grup O'Enginyeria Molecular; Institut Químic de Sarrià; Universitat Ramón Llull; Via Augusta 390 E-08017 Barcelona Spain
| | - Burjor Captain
- Laboratory for Molecular Photonics, Department of Chemistry; University of Miami; 1301 Memorial Drive Florida 33146-0431 USA
| | - Françisco M. Raymo
- Laboratory for Molecular Photonics, Department of Chemistry; University of Miami; 1301 Memorial Drive Florida 33146-0431 USA
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5
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Li Z, Yao S, Ye B. Enantioselective Oxidation of Thioethers to Sulfoxides by Means of a Structural Template with Chiral‐at‐Metal Ruthenium Complexes. Chempluschem 2014. [DOI: 10.1002/cplu.201402243] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zheng‐Zheng Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou 510275 (P. R. China), Fax: (+86) 20 84112245
| | - Su‐Yang Yao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou 510275 (P. R. China), Fax: (+86) 20 84112245
| | - Bao‐Hui Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou 510275 (P. R. China), Fax: (+86) 20 84112245
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Tietze LF, Düfert A, Lotz F, Sölter L, Oum K, Lenzer T, Beck T, Herbst-Irmer R. Synthesis of Chiroptical Molecular Switches by Pd-Catalyzed Domino Reactions. J Am Chem Soc 2009; 131:17879-84. [DOI: 10.1021/ja906260x] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lutz F. Tietze
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany, Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany, and Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Alexander Düfert
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany, Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany, and Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Florian Lotz
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany, Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany, and Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Lars Sölter
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany, Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany, and Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Kawon Oum
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany, Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany, and Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Thomas Lenzer
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany, Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany, and Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Tobias Beck
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany, Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany, and Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Regine Herbst-Irmer
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany, Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany, and Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
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