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Articles

Alkylation of [Pt2(μ-S)2(PPh3)4] with boronic acid derivatives

, , , , , & show all
Pages 2807-2818 | Received 01 Jun 2016, Accepted 19 Jul 2016, Published online: 30 Aug 2016
 

Abstract

The reactivity of the metalloligand [Pt2(μ-S)2(PPh3)4] with the boron-functionalized alkylating agents BrCH2(C6H4)B(OR)2 (R = H or C(CH3)2) was investigated by electrospray ionization mass spectrometry (ESI-MS) in real time using pressurized sample infusion (PSI). The macroscopic reaction of [Pt2(μ-S)2(PPh3)4] with one mole equivalent of alkylating agents BrCH2(C6H4)B{OC(CH3)2}2 and BrCH2(C6H4)B(OH)2 gave the dinuclear monocationic μ-sulfide thiolate complexes [Pt2(μ-S){μ-SCH2(C6H4)B{OC(CH3)2}2}(PPh3)4]+ and [Pt2(μ-S){μ-S+CH2(C6H4)B(OH)(O)}(PPh3)4]. The products were isolated as the [PF6] salt and zwitterion, respectively, and fully characterized by ESI-MS, IR, 1H and 31P NMR spectroscopy, and single-crystal X-ray structure determinations.

Acknowledgements

JSM thanks NSERC (Discovery and Discovery Accelerator Supplement) for operational and infrastructural funding and CFI, BCKDF, and the University of Victoria for infrastructural support. Eric Janusson (University of Victoria, Victoria, BC, Canada) is thanked for mass spectrometric support.

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