Interaction studies between photochromic spiropyrans and transition metal cations: the curious case of copper.
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, 1162-1171Download Item:
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Abstract:
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's Homepage:
http://people.tcd.ie/giordansDescription:
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Author: GIORDANI, SILVIA
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Organic & biomolecular chemistry;10;
6;
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spiropyransLicences: