Schwarzmaier, Christoph and Heinl, Sebastian and Balazs, Gabor and Scheer, Manfred (2015) E-4 Butterfly Complexes (E=P, As) as Chelating Ligands. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 54 (44). pp. 13116-13121. ISSN 1433-7851, 1521-3773
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The coordination properties of new types of bidentate phosphane and arsane ligands with a narrow bite angle are reported. The reactions of [{CpFe(CO)(2)}(2)(,(1:1)-P-4)] (1a) with the copper salt [Cu(CH3CN)(4)][BF4] leads, depending on the stoichiometry, to the formation of the spiro compound [{{CpFe(CO)(2)}(2)((3),(1:1:1:1)-P-4)}(2)Cu](+)[BF4](-) (2) or the monoadduct [{CpFe(CO)(2)}(2)((3),(1:1:2)-P-4){Cu(MeCN)}](+)[BF4](-) (3). Similarly, the arsane ligand [{CpFe(CO)(2)}(2)(,(1:1)-As-4)] (1b) reacts with [Cu(CH3CN)(4)][BF4] to give [{{CpFe(CO)(2)}(2)((3),(1:1:1:1)-As-4)}(2)Cu](+)[BF4](-) (5). Protonation of 1a occurs at the wing tip phosphorus atoms, which is in line with the results of DFT calculations. The compounds are characterized by spectroscopic methods (heteronuclear NMR spectroscopy and IR spectrometry) and by single-crystal X-ray diffraction studies.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSITION-METAL-COMPLEXES; P-4 ACTIVATION; SOLID-STATE; IRON COMPLEXES; PHOSPHORUS; COPPER(I); MOLECULES; BEHAVIOR; SUPRAMOLECULE; CHEMISTRY; arsenic; butterfly complexes; chelate ligands; phosphorus; protonation |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 May 2019 12:00 |
| Last Modified: | 09 May 2019 12:00 |
| URI: | https://pred.uni-regensburg.de/id/eprint/4593 |
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