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Synthesis and photobiological evaluation of Ru(II) complexes with expanded chelate polypyridyl ligands. J Inorg Biochem 2023; 238:112031. [PMID: 36327501 DOI: 10.1016/j.jinorgbio.2022.112031] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022]
Abstract
Photoreactive Ru(II) complexes capable of ejecting ligands have been used extensively for photocaging applications and for the creation of "photocisplatin" reagents. The incorporation of distortion into the structure of the coordination complex lowers the energy of dissociative excited states, increasing the yield of the photosubstitution reaction. While steric clash between ligands induced by adding substituents at the coordinating face of the ligand has been extensively utilized, a lesser known, more subtle approach is to distort the coordination sphere by altering the chelate ring size. Here a systematic study was performed to alter metal-ligand bond lengths, angles, and to cause intraligand distortion by introducing a "linker" atom or group between two pyridine rings. The synthesis, photochemistry, and photobiology of five Ru(II) complexes containing CH2, NH, O, and S-linked dipyridine ligands was investigated. All systems where stable in the dark, and three of the five were photochemically active in buffer. While a clear periodic trend was not observed, this study lays the foundation for the creation of photoactive systems utilizing an alternative type of distortion to facilitate photosubstitution reactions.
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2
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Toyama M, Takizawa T, Morita I, Nagao N, Kuramochi Y, Ishida H. Syntheses and Characterization of a Pair of Isomers of Heteroleptic Bis(Bidentate) Ruthenium(II) Complexes with Two Different Monodentate Ligands. Chemistry 2019; 25:16582-16590. [PMID: 31596008 DOI: 10.1002/chem.201903706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/18/2019] [Indexed: 01/24/2023]
Abstract
Two isomers of heteroleptic bis(bidentate) ruthenium(II) complexes with dimethyl sulfoxide (dmso) and chloride ligands, trans(Cl,Nbpy )- and trans(Cl,NHdpa )-[Ru(bpy)Cl(dmso-S)(Hdpa)]+ (bpy: 2,2'-bipyridine; Hdpa: di-2-pyridylamine), are synthesized. This is the first report on the selective synthesis of a pair of isomers of cis-[Ru(L)(L')XY]n+ (L≠L': bidentate ligands; X≠Y: monodentate ligands). The structures of the ruthenium(II) complexes are clarified by means of X-ray crystallography, and the signals in the 1 H NMR spectra are assigned based on 1 H-1 H COSY spectra. The colors of the two isomers are clearly different in both the solid state and solution: the trans(Cl,Nbpy ) isomer has a deep red color, whereas the trans(Cl,NHdpa ) isomer is yellow. Although both complexes have intense absorption bands at λ≈440-450 nm, only the trans(Cl,Nbpy ) isomer has a shoulder band at λ≈550 nm. DFT calculations indicate that the LUMOs of both isomers are the π* orbitals in the bpy ligand, and that the LUMO level of the trans(Cl,Nbpy ) isomer is lower than that of the trans(Cl,NHdpa ) isomer due to the trans effect of the Cl ligand; thus resulting in the appearance of the shoulder band. The HOMO levels are almost the same in both isomers. The energy levels are experimentally supported by cyclic voltammograms, in which these isomers have different reduction potentials and similar oxidation potentials.
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Affiliation(s)
- Mari Toyama
- Current address: Osaka Prefecture University College of Technology, 26-12 Saiwaicho, Neyagawa, Osaka, 572-8572, Japan.,Department of Chemistry of Functional Molecules, Faculty of Science and Engineering, Konan University, 8-9-1 Okamoto, Higashinada, Kobe, 658-8501, Japan.,Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Takako Takizawa
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Itaru Morita
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Noriharu Nagao
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Yusuke Kuramochi
- Department of Chemistry, Graduate School of Science, Kitasato University, 1-15-1 Kitasato, Sagamihara, Kanagawa, 252-0373, Japan.,Current address: Department of Chemistry, Faculty of Science Division II, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Hitoshi Ishida
- Department of Chemistry, Graduate School of Science, Kitasato University, 1-15-1 Kitasato, Sagamihara, Kanagawa, 252-0373, Japan
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5
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Aihara Y, Sato K, Shinozaki K. Optical Resolution, Determination of Absolute Configuration, and Photoracemization of cis-RuL2(CN)2 (L = 2,2′-Bipyridine and Its Analogues). Inorg Chem 2016; 55:8387-95. [DOI: 10.1021/acs.inorgchem.6b00772] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yusuke Aihara
- Department of Material Science,
Graduate School of Nanobioscience, Yokohama City University, 22-2
Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Kyohei Sato
- Department of Material Science,
Graduate School of Nanobioscience, Yokohama City University, 22-2
Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Kazuteru Shinozaki
- Department of Material Science,
Graduate School of Nanobioscience, Yokohama City University, 22-2
Seto, Kanazawa-ku, Yokohama 236-0027, Japan
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6
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Patil SK, Ghosh R, Kennedy P, Mobin SM, Das D. Potential anion sensing properties by a redox and substitution series of [Ru(bpy)3−n(Hdpa)n]2+, n = 1–3; Hdpa = 2,2′-dipyridylamine: selective recognition and stoichiometric binding with cyanide and fluoride ions. RSC Adv 2016. [DOI: 10.1039/c6ra09566f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Efficient anion sensors [Ru(bpy)3−n(Hdpa)n]2+, n = 1–3 have been developed for selective recognition of cyanide and fluoride ions with remarkable stoichiometric binding.
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Affiliation(s)
- Sagar K. Patil
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai 400019
- India
| | - Rajib Ghosh
- Radiation and Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - Princy Kennedy
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai 400019
- India
| | - Shaikh M. Mobin
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore 452017
- India
| | - Dipanwita Das
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai 400019
- India
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7
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Fu C, Wenzel M, Treutlein E, Harms K, Meggers E. Proline as chiral auxiliary for the economical asymmetric synthesis of ruthenium(II) polypyridyl complexes. Inorg Chem 2012; 51:10004-11. [PMID: 22946499 DOI: 10.1021/ic3015157] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A straightforward method for the synthesis of virtually enantiomerically pure ruthenium(II) polypyridyl complexes [Ru(pp)(pp')(pp")](PF(6))(2), pp = bidentate polypyridyl has been developed. The synthesis draws from the readily available racemic starting material cis-[Ru(pp)(pp')Cl(2)] and the natural amino acids l- or d-proline and relies on a dynamic asymmetric transformation under thermodynamic control.
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Affiliation(s)
- Chen Fu
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35043 Marburg, Germany
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8
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Toyama M, Suganoya R, Tsuduura D, Nagao N. Syntheses and Crystal Structures of Mono(di-2-pyridylamine)chloro(dimethyl sulfoxide-S)ruthenium(II) Complexes [RuCl2(Hdpa)(dmso-S)2] and [RuCl(Hdpa)(dmso-O)(dmso-S)2](OTf). BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.922] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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9
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Dahlenburg L, Herbst K. Coordination Chemistry of Functional Phosphanes, VI. Rhodium and Iridium Complexes with 2‐(Diphenylphosphophanyl)phenylamido Ligands. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/cber.19971301121] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lutz Dahlenburg
- Institut für Anorganische Chemie der Friedrich‐Alexander‐Universität Erlangen‐Nürnberg,Egerlandstrasse I, D‐91058 Erlangen, Germany
| | - Kourad Herbst
- Institut für Anorganische Chemie der Friedrich‐Alexander‐Universität Erlangen‐Nürnberg,Egerlandstrasse I, D‐91058 Erlangen, Germany
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10
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Shavaleev NM, Barbieri A, Bell ZR, Ward MD, Barigelletti F. New ligands in the 2,2′-dipyridylamine series and their Re(i) complexes; synthesis, structures and luminescence properties. NEW J CHEM 2004. [DOI: 10.1039/b312647a] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Nagai T, Tomizawa H, Sugahara K, Takeda Y, Ishida K. Contribution of a local electric dipole moment to the hydrophilic nature of [Ru(phen)2(1,5,6,10-tetraazaphenanthrene)]2+ complex in aqueous solutions. J Mol Struct 1999. [DOI: 10.1016/s0022-2860(98)00729-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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