Interaction studies between photochromic spiropyrans and transition metal cations: the curious case of copper.
Item Type:Journal Article
Citation:Natali M, Giordani S, Interaction studies between photochromic spiropyrans and transition metal cations: the curious case of copper., Organic & biomolecular chemistry, 10, 6, 2012, 1162-1171
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A series of four spiropyrans bearing different substituents on the indolic nitrogen were synthesized and their capability of binding mono and bivalent transition metal cations in solution was assessed via UV-visible absorption spectroscopy. All the compounds responded selectively to the presence of Cu(II) ions producing intense absorption bands in the visible region of their spectra. Bidimensional 1H-NMR and MALDI-TOF MS spectroscopies revealed the formation of SP dimers mediated by Cu(II). This is the first example of cross-coupling mediated by copper(II) in mild conditions causing the symmetric dimerization of spiropyran dyes.
Author: GIORDANI, SILVIA
Type of material:Journal Article
Series/Report no:Organic & biomolecular chemistry;
Availability:Full text available