Interplay between oxidative addition and reductive elimination at a diruthenium complex bearing the bis(diphenylphosphanyl)amine ligand
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Tobias Mayer
Abstract
The compound described in a previous report [Ru2(CO)4(µ-H)(µ-PtBu2)(µ-dppa)] [dppa = bis(diphenylphosphanyl)amine, 1] crystallizes from acetone/ethanol as a solvate stabilized in the solid by an intermolecular hydrogen bonding between the NH function of the dppa ligand and an ethanol molecule (Mayer, T.; Böttcher, H.-C. Polyhedron 2013, 50, 507−511). Surprisingly, by the use of n-pentane as the antisolvent during crystal growth for X-ray diffraction purposes an isomer of compound 1 was obtained. A deprotonation of the NH function within the dppa ligand in 1 occurred accompanied by an intramolecular oxidative addition of the proton towards the diruthenium core resulting in the novel compound [Ru2(CO)4(µ-H)2(µ-PtBu2)(µ-dppa−H)] (2), [(dppa−H) = [dppa−H+]− = Ph2PNPPh2 −, bis(diphenylphosphanyl)amide]. By dissolution of solid 2 in polar solvents a transformation back to 1 (reductive elimination) occurred as clearly indicated in solution by the NMR data for complex 1. Therefore, compound 2 has been characterized only in the solid state by elemental analysis, IR spectroscopy, mass spectrometry and single-crystal X-ray diffraction.
Funding source: Department of Chemistry of the Ludwig-Maximilians-Universität Munich
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: This work was supported by the Department of Chemistry of the Ludwig-Maximilians-Universität Munich.
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Data availability: The data that support the findings of this study are available from the corresponding author upon reasonable request.
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Artikel in diesem Heft
- Frontmatter
- In this issue
- Research Articles
- Chemical aspects of the preparation of Vulcanised Fibre using zinc chloride hydrates: from a brief history to a new consideration of the key reactions in ionic liquids
- On the preparation and spectral properties of some hydroxy-substituted triphenylmethane dyes
- High-pressure synthesis and crystal structure of Ga5Na1–x B12O26–x (OH) x (x = 0.12)
- Intermetallic phases with Ho4Ir13Ge9-type structure
- Interplay between oxidative addition and reductive elimination at a diruthenium complex bearing the bis(diphenylphosphanyl)amine ligand
- Anthracene-d- and l-phenylalanine derivatives: synthesis, dual-state emission, mechanochromic luminescence, chiroptical property and enantioselective recognition of free amino acids
- Synthesis, structures and optical properties of 3,3′-disubstituted biphenyl compounds
Artikel in diesem Heft
- Frontmatter
- In this issue
- Research Articles
- Chemical aspects of the preparation of Vulcanised Fibre using zinc chloride hydrates: from a brief history to a new consideration of the key reactions in ionic liquids
- On the preparation and spectral properties of some hydroxy-substituted triphenylmethane dyes
- High-pressure synthesis and crystal structure of Ga5Na1–x B12O26–x (OH) x (x = 0.12)
- Intermetallic phases with Ho4Ir13Ge9-type structure
- Interplay between oxidative addition and reductive elimination at a diruthenium complex bearing the bis(diphenylphosphanyl)amine ligand
- Anthracene-d- and l-phenylalanine derivatives: synthesis, dual-state emission, mechanochromic luminescence, chiroptical property and enantioselective recognition of free amino acids
- Synthesis, structures and optical properties of 3,3′-disubstituted biphenyl compounds
