Fast water exchange on a Pt(II) center: variable temperature and pressure 17O NMR study at 14.1 tesla of the ionic arylplatinum species [Pt{C6H3(CH2NMe2)2-2,6}(OH2)]+(OSO2CF3)

Abstract

The water-soluble ionic aryl platinum species [Pt{C{6}H{3}(CH{2}NMe{2})-2, 6} (OH{2})]}+{ undergoes water exchange at a rate 10}7{ times faster than the coordination complex [Pt(OH{2}){4}]}2{}+{; a clear-cut example of the trans effect of the C-bonded organic group. Lineshape analysis of high pressure }1{}7{O NMR data acquired in a 14.1 tesla magnet are indicative for an associative mode of activation for this water exchange.