The inclusion of chloride and bromide ions into a dicopper(II) bistren cryptate complex containing 2,5-dimethylfuran spacers is signalled by the development of an intense yellow colour. The drastic colour change results from a halide-to-metal charge transfer transition, which has been shifted to the visible region through the interaction of the encapsulated halide with the oxygen atoms of the furan spacer.
Halide ion inclusion into a dicopper(II) bistren cryptate containing active 2,5-dimethylfuran spacers: the origin of the bight yellow colour.
FABBRIZZI, LUIGI;AMENDOLA, VALERIA;BERGAMASCHI, GRETA;BOIOCCHI, MASSIMO;POGGI, ANTONIO;ZEMA, MICHELE
2008-01-01
Abstract
The inclusion of chloride and bromide ions into a dicopper(II) bistren cryptate complex containing 2,5-dimethylfuran spacers is signalled by the development of an intense yellow colour. The drastic colour change results from a halide-to-metal charge transfer transition, which has been shifted to the visible region through the interaction of the encapsulated halide with the oxygen atoms of the furan spacer.File in questo prodotto:
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