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Issue 20, 1973
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Proton magnetic resonance study of the exchange of trimethyl phosphate on the tetrakis(trimethyl phosphato)beryllium(II) complex

Joseph Crea  and  Stephen F. Lincoln 

Abstract

The exchange of trimethyl phosphate in the complex [Be{(MeO)3PO}4]2+ is characterised by the rate law (i), Rate = 4kex[Be{(MeO)3PO}42+](i), where kex(298 K)= 3·6 ± 0·6 s–1, ΔH‡= 56·9 ± 4·2 kJ mol–1, and ΔS‡=–43·9 ± 12 ± 6 J K–1 mol–1 are typical values observed in the presence of methylene chloride diluent. The observed zero-order exchange-rate dependence on the concentration of free trimethyl phosphate is considered symptomatic of a dissociative trimethyl phosphate exchange mechanism.

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Article type: Paper
DOI: 10.1039/DT9730002075
Citation: J. Chem. Soc., Dalton Trans., 1973,0, 2075-2078
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    Proton magnetic resonance study of the exchange of trimethyl phosphate on the tetrakis(trimethyl phosphato)beryllium(II) complex

    J. Crea and S. F. Lincoln, J. Chem. Soc., Dalton Trans., 1973, 0, 2075
    DOI: 10.1039/DT9730002075

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