Weber, Martin and Balazs, Gabor and Virovets, Alexander V. and Peresypkina, Eugenia and Scheer, Manfred (2021) Insertion of Phosphenium Ions into a Bicyclo[1.1.0]Tetraphosphabutane Iron Complex. MOLECULES, 26 (13): 3920. ISSN 1420-3049
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By reacting [{Cp"'Fe(CO)(2)}(2)(mu,eta(1:1)-P-4)] (1) with in situ generated phosphenium ions [Ph2P][A] ([A](-) = [OTf](-) = [O3SCF3](-), [PF6](-)), a mixture of two main products of the composition [{Cp"'Fe(CO)(2)}(2)(mu,eta(1:1)-P-5(C6H5)(2))][PF6] (2a and 3a) could be identified by extensive P-31 NMR spectroscopic studies at 193 K. Compound 3a was also characterized by X-ray diffraction analysis, showing the rarely observed bicyclo[2.1.0]pentaphosphapentane unit. At room temperature, the novel compound [{Cp"'Fe}(mu,eta(4:1)-P5Ph2){Cp"'(CO)(2)Fe}][PF6] (4) is formed by decarbonylation. Reacting 1 with in situ generated diphenyl arsenium ions gives short-lived intermediates at 193 K which disproportionate at room temperature into tetraphenyldiarsine and [{Cp"'Fe(CO)(2)}(4)(mu(4),eta(1:1:1:1)-P-8)][OTf](2) (5) containing a tetracyclo[3.3.0.0(2,7).0(3,6)]octaphosphaoctane ligand.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | P-4 ACTIVATION; BUTTERFLY COMPLEXES; PHOSPHORUS; REACTIVITY; FUNCTIONALIZATION; LIGAND; ARSENIUM; ELEMENTS; SYSTEMS; CATION; bicyclo[1.1.0]tetraphosphabutane; phosphorus activation; arsenium ions; phosphenium ions; tetracyclo[3.3.0.0(2,7).0(3,6)]octaphosphaoctane; P-4 butterfly complex; R2P+ insertion |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Jul 2022 10:37 |
| Last Modified: | 05 Jul 2022 10:37 |
| URI: | https://pred.uni-regensburg.de/id/eprint/46073 |
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