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Fedunov RG, Grivin VP, Pozdnyakov IP, Melnikov AA, Chekalin SV, Vasilchenko DB, Glebov EM. Photophysics and photochemistry of (n-Bu 4N) 2[Pt(NO 3) 6] in acetonitrile: ultrafast pump-probe spectroscopy and quantum chemical insight. Photochem Photobiol Sci 2024; 23:1957-1970. [PMID: 39405008 DOI: 10.1007/s43630-024-00645-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Accepted: 09/30/2024] [Indexed: 11/01/2024]
Abstract
The ultrafast processes caused by photoexcitation of (n-Bu4N)2[Pt(NO3)6] complex in acetonitrile were studied by means of transient absorption (TA) pump-probe spectroscopy and verified by quantum chemical calculations. The primary photochemical process was found to be an inner-sphere electron transfer followed by an escape of an •NO3 radical to the bulk solution. The reaction occurs via the dissociative triplet excited LMCT state of the initial complex. Based on the experimental data and quantum chemical calculations, the mechanism of ultrafast photophysical and photochemical processes is proposed.
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Affiliation(s)
- Roman G Fedunov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 3 Institutskaya Str., 630090, Novosibirsk, Russian Federation
| | - Vjacheslav P Grivin
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 3 Institutskaya Str., 630090, Novosibirsk, Russian Federation
| | - Ivan P Pozdnyakov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 3 Institutskaya Str., 630090, Novosibirsk, Russian Federation
| | - Alexei A Melnikov
- Institute of Spectroscopy, Russian Academy of Sciences, 119333, Troitsk, Moscow, Russian Federation
| | - Sergei V Chekalin
- Institute of Spectroscopy, Russian Academy of Sciences, 119333, Troitsk, Moscow, Russian Federation
| | - Danila B Vasilchenko
- A.V. Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Institutskaya Str., 630090, Novosibirsk, Russian Federation
| | - Evgeni M Glebov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 3 Institutskaya Str., 630090, Novosibirsk, Russian Federation.
- Novosibirsk State University, 2 Pirogova Str., 630090, Novosibirsk, Russian Federation.
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Grivin VP, Matveeva SG, Fedunov RG, Yanshole VV, Vasilchenko DB, Glebov EM. Photochemistry of (n-Bu 4N) 2[Pt(NO 3) 6] in acetonitrile. Photochem Photobiol Sci 2024; 23:747-755. [PMID: 38430371 DOI: 10.1007/s43630-024-00550-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 02/08/2024] [Indexed: 03/03/2024]
Abstract
Photochemistry of the (n-Bu4N)2[Pt(NO3)6] complex in acetonitrile was studied by means of stationary photolysis and nanosecond laser flash photolysis. The primary photochemical process was found to be an intramolecular electron transfer followed by an escape of an •NO3 radical to the solution bulk. The spectra of two successive Pt(III) intermediates were detected in the microsecond time domain, and their spectral and kinetic characteristics were determined. These intermediates were identified as PtIII(NO3)52- and PtIII(NO3)4- complexes. Disproportionation of Pt(III) species resulted in formation of final Pt(II) products.
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Affiliation(s)
- Vjacheslav P Grivin
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 3 Institutskaya Str, 630090, Novosibirsk, Russian Federation
| | - Svetlana G Matveeva
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 3 Institutskaya Str, 630090, Novosibirsk, Russian Federation
| | - Roman G Fedunov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 3 Institutskaya Str, 630090, Novosibirsk, Russian Federation
| | - Vadim V Yanshole
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, 3a Institutskaya Str., 630090, Novosibirsk, Russian Federation
- Novosibirsk State University, 2 Pirogova Str., 630090, Novosibirsk, Russian Federation
| | - Danila B Vasilchenko
- A.V. Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Institutskaya Str, 630090, Novosibirsk, Russian Federation
| | - Evgeni M Glebov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 3 Institutskaya Str, 630090, Novosibirsk, Russian Federation.
- Novosibirsk State University, 2 Pirogova Str., 630090, Novosibirsk, Russian Federation.
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Rudnitskaya OV, Tereshina TA, Dobrokhotova EV, Kultyshkina EK, Novikov AS, Tskhovrebov AG, Zubavichus YV, Khrustalev VN. Monoprotonated Dimethyl Sulfoxide, [HOSMe
2
]
+
: Synthesis, Crystal Structure, Spectroscopic and Theoretical Studies of [HOSMe
2
]
2
[OsCl
6
] ⋅ 2H
2
O. ChemistrySelect 2021. [DOI: 10.1002/slct.202100970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Olga V. Rudnitskaya
- Department of Inorganic Chemistry Peoples' Friendship University of Russia (RUDN University) 6 Miklukho-Maklaya St Moscow 117198 Russian Federation
| | - Tatiana A. Tereshina
- Department of Inorganic Chemistry Peoples' Friendship University of Russia (RUDN University) 6 Miklukho-Maklaya St Moscow 117198 Russian Federation
| | - Ekaterina V. Dobrokhotova
- Department of Inorganic Chemistry Peoples' Friendship University of Russia (RUDN University) 6 Miklukho-Maklaya St Moscow 117198 Russian Federation
| | - Ekaterina K. Kultyshkina
- Department of Inorganic Chemistry Peoples' Friendship University of Russia (RUDN University) 6 Miklukho-Maklaya St Moscow 117198 Russian Federation
| | - Alexander S. Novikov
- Saint Petersburg State University Universitetskaya Nab. 7/9 199034 Saint Petersburg Russia
| | - Alexander G. Tskhovrebov
- Department of Inorganic Chemistry Peoples' Friendship University of Russia (RUDN University) 6 Miklukho-Maklaya St Moscow 117198 Russian Federation
- Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences Kosygina 4 119991 Moscow Russia
| | - Yan V. Zubavichus
- Synchrotron Radiation Facility SKIF Boreskov Institute of Catalysis Siberian Branch of the Russian Academy of Sciences Nikolskii pr. 1 630559 Koltsovo Russia
| | - Victor N. Khrustalev
- Department of Inorganic Chemistry Peoples' Friendship University of Russia (RUDN University) 6 Miklukho-Maklaya St Moscow 117198 Russian Federation
- Zelinsky Institute of Organic Chemistry RAS Leninsky Prosp. 47 119991 Moscow Russia
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Glebov EM, Matveeva SG, Pozdnyakov IP, Grivin VP, Plyusnin VF, Vasilchenko DB, Romanova TE, Melnikov AA, Chekalin SV, Fedunov RG. Photochemistry of hexachloroosmate(IV) in ethanol. Photochem Photobiol Sci 2020; 19:1569-1579. [PMID: 33073834 DOI: 10.1039/d0pp00244e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The photochemistry of the OsIVCl62- complex in ethanol was studied by means of stationary photolysis, nanosecond laser flash photolysis, ultrafast pump-probe spectroscopy and quantum chemistry. The direction of the photochemical process was found to be wavelength-dependent. Irradiation in the region of the d-d and LMCT bands results in the photosolvation (with the wavelength-dependent quantum yield) and photoreduction of Os(iv) to Os(iii), correspondingly. The characteristic time of photosolvation is ca. 40 ps. Photoreduction occurs in the micro- and millisecond time domains via several Os(iii) intermediates. The nature of intermediates and the possible mechanisms of photoreduction are discussed. We believe that the lability of the photochemically produced Os(iv) and Os(iii) intermediates determines the synthetic potential of OsIVCl62- photochemistry.
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Affiliation(s)
- Evgeni M Glebov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, 3 Institutskaya Str., 630090, Novosibirsk, Russian Federation. and Novosibirsk State University, 2 Pirogova Str., 630090, Novosibirsk, Russian Federation
| | - Svetlana G Matveeva
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, 3 Institutskaya Str., 630090, Novosibirsk, Russian Federation.
| | - Ivan P Pozdnyakov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, 3 Institutskaya Str., 630090, Novosibirsk, Russian Federation. and Novosibirsk State University, 2 Pirogova Str., 630090, Novosibirsk, Russian Federation
| | - Vjacheslav P Grivin
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, 3 Institutskaya Str., 630090, Novosibirsk, Russian Federation. and Novosibirsk State University, 2 Pirogova Str., 630090, Novosibirsk, Russian Federation
| | - Victor F Plyusnin
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, 3 Institutskaya Str., 630090, Novosibirsk, Russian Federation. and Novosibirsk State University, 2 Pirogova Str., 630090, Novosibirsk, Russian Federation
| | - Danila B Vasilchenko
- A.V. Nikolaev Institute of Inorganic Chemistry, 3 Lavrentyev Ave., 630090, Novosibirsk, Russian Federation. and Novosibirsk State University, 2 Pirogova Str., 630090, Novosibirsk, Russian Federation
| | - Tamara E Romanova
- A.V. Nikolaev Institute of Inorganic Chemistry, 3 Lavrentyev Ave., 630090, Novosibirsk, Russian Federation. and Novosibirsk State University, 2 Pirogova Str., 630090, Novosibirsk, Russian Federation
| | - Alexei A Melnikov
- Institute of Spectroscopy, Russian Academy of Sciences, 5 Fizicheskaya Str., 119333, Troitsk, Moscow, Russian Federation. and Faculty of Physics, National Research University Higher School of Economics, 20 Myasnitskaya Str., 101000 Moscow, Russian Federation
| | - Sergey V Chekalin
- Institute of Spectroscopy, Russian Academy of Sciences, 5 Fizicheskaya Str., 119333, Troitsk, Moscow, Russian Federation.
| | - Roman G Fedunov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, 3 Institutskaya Str., 630090, Novosibirsk, Russian Federation.
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