Formation and dissociation mechanism of amide complexes. V. Interconversion of dimeric and monomeric Cu2+‐complexes with 1,8‐diamino‐3,6‐diaza‐2,7‐octanedione: Comparison between the reactivity of terminal and internal amide groups
Abstract:SummaryThe protonation and deprotonation rates of the coordinated amide groups in the Cu2+-complexes of 1,8-diamin0-3,6-diaza-2,7-octanedione (DED = L) have been studied by stopped-flow techniques. Starting at low pH from Cu2+ and DED the dimeric C~2L,~+-complex, fully formed within the mixing time of the stopped-flow instrument, reacts in two consecutive steps to yield the final product CuLH-,. The rate constants of the forward and backward reactions have been determined and are given in Table 1. The intermed… Show more
Die Geschwindigkeitskonstanten für die Deprotonierung und Protonierung der koordinierten Amidgruppen in den Cu‐Komplexen (I)‐(III) von 1,8‐Diamino‐3,6‐diaza‐2,7‐octandion werden mittels Spektrophotometrie ermittelt.
Die Geschwindigkeitskonstanten für die Deprotonierung und Protonierung der koordinierten Amidgruppen in den Cu‐Komplexen (I)‐(III) von 1,8‐Diamino‐3,6‐diaza‐2,7‐octandion werden mittels Spektrophotometrie ermittelt.
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