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Indanthrone, an old, insoluble dye can be converted into a solution processable, self-assembling and electroluminescent organic semiconductor, namely tetraoctyloxydinaptho[2,3-a:2',3'-h]phenazine (P-C8), in a simple one-pot process consisting of the reduction of the carbonyl group by sodium dithionite followed by the substitution with solubility inducing groups under phase transfer catalysis co...

abstractâ during past sixty years, the world has seen significant changes in the ways of travel from one place to another. in this time period, not only travel mode, but also tourism destinations, motivation and the number of these travels have been changed. one of those changes is the specific kind of tourism called ecotourism which has had so rapid growth in the recent years and has become on...