Moussa, Mehdi Elsayed and Welsch, Stefan and Duetsch, Luis and Piesch, Martin and Reichl, Stephan and Seidl, Michael and Scheer, Manfred (2019) The Triple-Decker Complex [Cp*Fe(mu,(5):(5)-P-5)Mo(CO)(3)] as a Building Block in Coordination Chemistry. MOLECULES, 24 (2): 325. ISSN 1420-3049,
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Although the triple-decker complex [Cp*Fe(mu,eta(5):eta(5)-P-5)Mo(CO)(3)] (2) was first reported 26 years ago, its reactivity has not yet been explored. Herein, we report a new high-yielding synthesis of 2 and the isolation of its new polymorph (2'). In addition, we study its reactivity towards Ag-I and Cu-I ions. The reaction of 2 with Ag[BF4] selectively produces the coordination compound [Ag{Cp*Fe(mu,eta(5):eta(5)-P-5)Mo(CO)(3)}(2)][BF4] (3). Its reaction with Ag[TEF] and Cu[TEF] ([TEF](-) = [Al{OC(CF3)(3)}(4)](-)) leads to the selective formation of the complexes [Ag{Cp*Fe(mu,eta(5):eta(5)-P-5)Mo(CO)(3)}(2)][TEF] (4) and [Cu{Cp*Fe(mu,eta(5):eta(5)-P-5)Mo(CO)(3)}(2)][TEF] (5), respectively. The X-ray structures of compounds 3-5 each show an M-I ion (M-I = Ag-I, Cu-I) bridged by two P atoms from two triple-decker complexes (2). Additionally, four short (MCO)-C-I<bold> distances </bold>(two to each triple-decker complex 2) participate in stabilizing the coordination sphere of the M-I ion. Evidently, the X-ray structure for compound 3 shows a weak interaction of the Ag-I ion with one fluorine atom of the counterion [BF4](-). Such an Ag<bold>F interaction does not exist for compound </bold>4. These findings demonstrate the possibility of using triple-decker complex 2 as a ligand in coordination chemistry and opening a new perspective in the field of supramolecular chemistry of transition metal compounds with phosphorus-rich complexes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | N-LIGAND COMPLEXES; BEHAVIOR; PENTAPHOSPHAFERROCENE; PHOSPHORUS; MOLECULE; CU+; triple-decker; cyclo-P-5; weakly coordinating; molybdenum; silver; copper |
| 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: | 27 Apr 2020 08:53 |
| Last Modified: | 27 Apr 2020 08:53 |
| URI: | https://pred.uni-regensburg.de/id/eprint/27744 |
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