摘要

The binding of seven ureas and amides to Cu(terpy)(2+) in methanol has been studied by EPR, NMR and UV-Vis spectroscopy. The association constants range from 6.5 M (1) for acetamide to 45.3 M (1) for propyleneurea and correlate with the gas phase basicity of ligands. In methanol/water mixtures the affinity drops rapidly on increase in water content to 20 vol.%, but the binding of propyleneurea is detectable with K = 4.1 M (1) even in pure aqueous medium.

  • 出版日期2010-1-4