Hierlmeier, Gabriele and Wolf, Robert (2022) Diphosphorus Release and Heterocumulene Oligomerisation by Nickel Complexes. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2022 (10): e202101057. ISSN 1434-1948, 1099-0682
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The generation of diphosphorus molecules P-2 under mild conditions in solution is a useful strategy to generate diphosphines via [4+2] cycloadditions. We recently described the release of P-2 units from the nickel butterfly complex [{(IMes)Ni(CO)}(2)(mu(2),eta(2):eta(2)-P-2)] (IMes=1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene) upon addition of CO gas. Herein, we developed an alternative protocol for the same process using heterocumulenes. In addition to formation of P-4 (the dimerisation product of P-2), the reactions afford nickel complexes of novel pincer-type ligands. Aryl isothiocyanates undergo a trimerisation within the coordination sphere of nickel and afford square planar nickel complexes with S-C-S pincer-ligand frameworks. Carbon disulfide coordinates to the [(IMes)Ni]-fragment in an eta(2)-fashion, affording a dinuclear complex. Similar products are formed when the N-heterocyclic carbene nickel(0) complex [(IMes)Ni(vtms)(2)] is used as a precursor (vtms=vinyltrimethylsilane).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COVALENT RADII; ORGANIC ISOTHIOCYANATES; CARBENE COMPLEXES; BOND; REACTIVITY; INSERTION; HETEROALLENES; ACTIVATION; SINGLE; P-4; Heterocumulenes; Nickel; Oligomerisation; Phosphorus; Pincer ligands |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Robert Wolf |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Feb 2024 05:33 |
| Last Modified: | 08 Feb 2024 05:33 |
| URI: | https://pred.uni-regensburg.de/id/eprint/57302 |
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