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- W2008175657 abstract "The rates of formation and dissociation of 1:1 complexes of manganese(II) and zinc(II) ions with bipyridyl-type ligands have been examined in dimethyl sulphoxide (dmso) solution by the stopped-flow method at temperatures just above the freezing point of dmso. In some cases the reactions are too fast to measure {e.g. the reaction between the [Mn(dmso)6]2+ ion and 2,2′-bipyridine (bipy)}. Rate data are reported for the formation and the mercury(II)-ion induced dissociations of [Mn(phen)(dmso)4]2+(phen = 1,10-phenanthroline) and [Zn(bipy)(dmso)4]2+ ions, and the kinetically determined first stability constants in dmso (I= 0.20 mol dm–3, Na[ClO4]) are log (K1/dm3 mol–1)= 2.63 and 3.36 respectively. The rate constants for dmso solvent exchange (kex) are calculated to be log (kex/s–1)= 4.89 (291.7 K) and 5.94(292.2K) for Mn2+ and Zn2+ respectively. The reaction between a large excess of [Mn(dmso)6]2+ ion and 2,2′:6′,2″-terpyridine (terpy) is complicated; an initial very rapid reaction is followed by a much slower process which has been examined by repetitive-scan spectrophotometry. Rate data are reported for the two steps, and a mechanism is proposed in which the initial rapid reaction involves the formation of a binuclear intermediate and the slow step is associated with final chelate-ring closure." @default.
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- W2008175657 title "Rates of formation and dissociation, and the stability of some manganese(II) and zinc(II) complexes with bipyridyl-type ligands in dimethyl sulphoxide solution" @default.
- W2008175657 doi "https://doi.org/10.1039/dt9760000638" @default.
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