Two-dimensional correlation spectroscopic studies on coordination between carbonyl group of butanone and metal ions

Two dimensional asynchronous spectra were used to characterize coordination between carbonyl group of butanone and metal ions by using an approach proposed in our recent paper. Spectral variation of n-π* transition band of carbonyl group is used to probe the coordination even if metal ions does not possess any characteristic peak in spectra. Experimental results indicate that Ca2+ and Al3+ show considerable ability to coordinate with the carbonyl group of butanone and bring about spectral variation of the n-π* transition band, which is manifested by cross peaks in 2D asynchronous spectra.

Graphical abstractMetal ions show considerable ability to coordinate with the carbonyl group of butanone and bring about spectral variation of the n-π* transition band, which is manifested by cross peaks in 2D asynchronous spectra.Figure optionsDownload full-size imageDownload as PowerPoint slide