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Kong QY, Laursen MG, Haldrup K, Kjær KS, Khakhulin D, Biasin E, van Driel TB, Wulff M, Kabanova V, Vuilleumier R, Bratos S, Nielsen MM, Gaffney KJ, Weng TC, Koch MHJ. Initial metal-metal bond breakage detected by fs X-ray scattering in the photolysis of Ru 3(CO) 12 in cyclohexane at 400 nm. Photochem Photobiol Sci 2019; 18:319-327. [PMID: 30628601 DOI: 10.1039/c8pp00420j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Using femtosecond resolution X-ray solution scattering at a free electron laser we were able to directly observe metal-metal bond cleavage upon photolysis at 400 nm of Ru3(CO)12, a prototype for the photochemistry of transition metal carbonyls. This leads to the known single intermediate Ru3(CO)11(μ-CO)*, with a bridging ligand (μCO) and where the asterisk indicates an open Ru3-ring. This loses a CO ligand on a picosecond time scale yielding a newly observed triple bridge intermediate, Ru3(CO)8(μ-CO)3*. This loses another CO ligand to form the previously observed Ru3(CO)10, which returns to Ru3(CO)12via the known single-bridge Ru3(CO)10(μ-CO). These results indicate that contrary to long standing hypotheses, metal-metal bond breakage is the only chemical reaction immediately following the photolysis of Ru3(CO)12 at 400 nm. Combined with previous picosecond resolution X-ray scattering data and time resolved infrared spectroscopy these results yield a new mechanism for the photolysis of Ru3(CO)12.
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Affiliation(s)
- Q Y Kong
- Synchrotron Soleil, L'Orme des Merisiers St Aubin, Gif-sur-Yvette, F-91192, France
| | - M G Laursen
- Department of Physics, Technical University of Denmark, Fysikvej 307, Kongens Lyngby, DK-2800, Denmark
| | - K Haldrup
- Department of Physics, Technical University of Denmark, Fysikvej 307, Kongens Lyngby, DK-2800, Denmark
| | - K S Kjær
- Department of Physics, Technical University of Denmark, Fysikvej 307, Kongens Lyngby, DK-2800, Denmark
| | - D Khakhulin
- European XFEL GmbH, Holzkoppel 4, Schenefeld, D-22869, Germany
| | - E Biasin
- Department of Physics, Technical University of Denmark, Fysikvej 307, Kongens Lyngby, DK-2800, Denmark.,PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California, 94025, USA
| | - T B van Driel
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, California, 94025, USA
| | - M Wulff
- European Synchrotron Radiation Facility, Grenoble Cedex, BP 220 F-38043, France
| | - V Kabanova
- European Synchrotron Radiation Facility, Grenoble Cedex, BP 220 F-38043, France
| | - R Vuilleumier
- Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Département de Chimie, PASTEUR, 24 rue Lhomond, Paris, F-75005, France.,Sorbonne Universités, UPMC Univ Paris 06, ENS, CNRS, PASTEUR, Paris, F-75005, France
| | - S Bratos
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7600, LPTMC, Paris, F-75005, France
| | - M M Nielsen
- Department of Physics, Technical University of Denmark, Fysikvej 307, Kongens Lyngby, DK-2800, Denmark
| | - K J Gaffney
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California, 94025, USA
| | - T C Weng
- Center for High Pressure Science & Technology Advanced Research, 1690 Cailun Rd, Bldg. 6-408, Pudong, Shanghai, 201203, China.
| | - M H J Koch
- European Molecular Biology Laboratory, Hamburg Outstation, EMBL c/o DESY, Notkestrasse 85, Hamburg, D-22603, Germany
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Zaharieva I, Chernev P, Risch M, Gerencser L, Berggren G, Shevchenko D, Anderlund M, Weng TC, Haumann M, Dau H. Towards a comprehensive X-ray approach for studying the photosynthetic manganese complex–XANES, Kα/Kβ/Kβ-satellite emission lines, RIXS, and comparative computational approaches for selected model complexes. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/190/1/012142] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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