By Hiroaki Isago
This publication screens how optical (absorption, emission, and magnetic round dichroism) spectra of phthalocyanines and similar macrocyclic dyes may be different from their prototypical ones reckoning on stipulations. As those compounds could be thinking about colourful chemistry (which may be pushed by means of impurities in solvents), their spectra behave just like the sea-god Proteus of their mutability. hence, those that were engaged with phthalocyanines for the 1st time, together with even informed expert researchers and engineers, could have been embarrassed through the misleading habit in their compounds and will have, within the worst circumstances, given up their initiatives. This e-book is aimed now not in basic terms at reviewing the optical spectra, but in addition at assisting such humans, quite newcomers, to determine them out by means of displaying a few examples in their prototypical spectra and their diversifications in different occasions. For the aim of higher knowing, the booklet additionally offers an advent to their theoretical backgrounds as graphically as attainable and with out mathematicization for readers who're vulnerable in mathematics.
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Additional resources for Optical Spectra of Phthalocyanines and Related Compounds: A Guide for Beginners
Kobayashi, H. Konami, in Phthalocyanines: Properties and Applications, vol. 4, ed. C. P. Lever (VCH, New York, 1996), p. 1 Are All Phthalocyanines Blue? 1 and 2, phthalocyanine derivatives and related macrocyclic compounds generally show an intense blue color because they intensely absorb red light (650–700 nm; log (ε/M−1 cm−1) = ca. 1. Some of them absorb violet light (380–420 nm; log(ε) = ca. 4) as well; hence, they may show a green color. In any case, the appearance of the main band in the 650–700 nm region and the essential transparency in the other region dictate their color.
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Am. Chem. Soc. E. Ough, T. M. J. Stillman, Inorg. Chem. J. J. Thomson, J. Chem. Soc. Faraday Trans. C. L. C. E. E. E. N. Schatz, J. Phys. Chem. H. Isago, Y. Kagaya, Inorg. Chem. H. Isago, Y. Kagaya, J. H. Isago, Y. Kagaya, H. Fujita, T. J. J. Stillman, J. Phys. Chem. N. Kobayashi, H. Konami, in Phthalocyanines: Properties and Applications, vol. 4, ed. C. P. Lever (VCH, New York, 1996), p. 1 Are All Phthalocyanines Blue? 1 and 2, phthalocyanine derivatives and related macrocyclic compounds generally show an intense blue color because they intensely absorb red light (650–700 nm; log (ε/M−1 cm−1) = ca.
Optical Spectra of Phthalocyanines and Related Compounds: A Guide for Beginners by Hiroaki Isago