Structure of [Cu(DAPTA)4]+ complex in extremely diluted aqueous solution

... Here we present the investigation on the [Cu(DAPTA)4][BF4]complex, where DAPTA = 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1] nonanefrom millimolar concentration down to 66 ?M, thus reaching concentration levels that can be correlated with those relevant for biological applications. Acquisition of XAS data on such a dilution level is very challenging and unusual. ...