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




Ujam, Oguejiofo T.
Offiea, Ogochukwu E.
Oliver, Allen G.
Ume, Joshua I.
Stoddard, Rhonda L.
McIndoe, J. Scott

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Journal of Coordination Chemistry


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 CMe2) was investigated by electrospray ionization mass spectrometry (ESI-MS) in real time using the 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]– salts and zwitterion respectively, and fully characterized by ESI-MS, IR, 1H and 31P NMR spectroscopy and single crystal X-ray structure determinations.



real time analysis, mass spectrometry, platinum complexes, alkylation, boronic acid


Ujam, O. T., Offie, O. E., Oliver, A. G., Ume, J. I., Stoddar, R. L., & Mclndoe J. S. (2016). Alkylation of [Pt2(μ-S)2(PPh3)4] with boronic acid derivatives. Journal of Coordination Chemistry, 69(19), 2807-2818.