Although the triple-decker complex [Cp*Fe(µ,η⁵:η⁵-P₅)Mo(CO)₃] () was first reported 26 years ago, its reactivity has not yet been explored. Herein, we report a new high-yielding synthesis of and the isolation of its new polymorph (). In addition, we study its reactivity towards Ag and Cu ions. The reaction of with Ag[BF₄] selectively produces the coordination compound [Ag{Cp*Fe(µ,η⁵:η⁵-P₅)Mo(CO)₃}₂][BF₄] (). 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(µ,η⁵:η⁵-P₅)Mo(CO)₃}₂][TEF] () and [Cu{Cp*Fe(µ,η⁵:η⁵-P₅)Mo(CO)₃}₂][TEF] (), respectively. The X-ray structures of compounds ⁻ each show an M ion (M = Ag, Cu) bridged by two P atoms from two triple-decker complexes (). Additionally, four short M···CO distances (two to each triple-decker complex ) participate in stabilizing the coordination sphere of the M ion. Evidently, the X-ray structure for compound shows a weak interaction of the Ag ion with one fluorine atom of the counterion [BF₄]. Such an Ag···F interaction does not exist for compound . These findings demonstrate the possibility of using triple-decker complex 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.
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| http://dx.doi.org/10.3390/molecules24020325 | DOI Listing |
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