Heinl, Veronika and Balazs, Gabor and Koschabek, Sarah and Eckhardt, Maria and Piesch, Martin and Seidl, Michael and Scheer, Manfred (2021) Coordination Behavior of [Cp '' Zr-2(mu(1:1)-As-4)] towards Lewis Acids. MOLECULES, 26 (10): 2966. ISSN , 1420-3049
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The functionalization of the arsenic transfer reagent [Cp '' Zr-2(eta(1:1)-As-4)] (1) focuses on modifying its properties and enabling a broader scope of reactivity. The coordination behavior of 1 towards different Lewis-acidic transition metal complexes and main group compounds is investigated by experimental and computational studies. Depending on the steric requirements of the Lewis acids and the reaction temperature, a variety of new complexes with different coordination modes and coordination numbers could be synthesized. Depending on the Lewis acid (LA) used, a mono-substitution in [Cp '' Zr-2(mu,eta(1:1:1:1)-As-4)(LA)] (LA = Fe(CO)(4) (4); B(C6F5)(3) (7)) and [Cp '' Zr-2(mu,eta(3:1:1)-As-4)(Fe(CO)(3))] (5) or a di-substitution [Cp '' Zr-2(mu(3),eta(1:1:1:1)-As-4)(LA)(2)] (LA = W(CO)(5) (2); CpMn(CO)(2) (3); AlR3 (6, R = Me, Et, Bu-i)) are monitored. In contrast to other coordination products, 5 shows an eta(3) coordination in which the butterfly As-4 ligand is rearranged to a cyclo-As-4 ligand. The reported complexes are rationalized in terms of inverse coordination.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | INVERSE COORDINATION; P-4 ACTIVATION; COMPLEXES; CHEMISTRY; ELEMENTS; AS-4; arsenic; coordination chemistry; DFT calculations; Lewis acids; zirconium |
| 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: | 22 Aug 2022 08:32 |
| Last Modified: | 22 Aug 2022 08:32 |
| URI: | https://pred.uni-regensburg.de/id/eprint/46305 |
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