Moussa, Mehdi Elsayed and Fleischmann, Martin and Balazs, Gabor and Virovets, Alexander V. and Peresypkina, Eugenia and Shelyganov, Pavel A. and Seidl, Michael and Reichl, Stephan and Scheer, Manfred (2021) Versatile Coordination of Ag-I and Cu-I Ions towards cyclo-As-5 Ligands. CHEMISTRY-A EUROPEAN JOURNAL, 27 (38). pp. 9742-9747. ISSN 0947-6539, 1521-3765
Full text not available from this repository. (Request a copy)Abstract
The reactions of the cyclo-As-5 complex [Cp*Fe(eta(5)-As-5)] (B) with the Ag-I and Cu-I salts of the weakly coordinating anion (WCA) [FAl{OC6F10(C6F5)}(3)](-) ([FAl](-)) are studied. These reactions allow the synthesis of the mononuclear complexes [M(eta(5) : eta(2)-B)(2)][FAl] (M=Ag (1), Cu (2)) when a ratio of B/M(FAl) 2 : 1 is used. Compound 1 shows an unusual disorder of the central Ag-I cation between two pi-coordinating cyclo-As-5 ligands, which is absent in 2 pointing to a weak interaction of the Ag center towards the cyclo-As-5 ligands in B. When the ratio of B/Ag(FAl) is changed to 3 : 1 or 1 : 1, the respective coordination compounds [Ag(eta(2)-B)(3)][FAl] (3) and [Ag-2(eta(2) : eta(2)-B)(2)][FAl](2) (4) are accessible. The coordination modes of the cyclo-As-5 units in 1, 3 and 4 are all different, reflecting the adaptive coordination behavior of B towards Ag-I ions. The optimized geometries in the gas phase of 1-4 are determined by DFT calculations to support the bonding situation observed in their solid-state structures.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TEMPERATURE-DEPENDENCE; PHASE-TRANSITIONS; X-RAY; COMPLEXES; PENTAPHOSPHAFERROCENE; CHEMISTRY; SILVER(I); adaptive coordination; arsenic; copper; silver; weakly coordinating anions |
| 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: | 07 Jul 2022 08:04 |
| Last Modified: | 07 Jul 2022 08:04 |
| URI: | https://pred.uni-regensburg.de/id/eprint/45886 |
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