Photochromism: Molecules and Systems
Heinz Dürr, Henri Bouas-Laurent
Elsevier, 12 mar 2003 - 1218 páginas
Photochromism is simply defined as the light induced reversible change of colour. The field has developed rapidly during the past decade as a result of attempts to improve the established materials and to discover new devices for applications.As photochromism bridges molecular, supramolecular and solid state chemistry, as well as organic, inorganic and physical chemistry, such a treatment requires a multidisciplinary approach and a broad presentation. The first edition (1990) provided an enormous amount of new concepts and data, such as the presentation of main families based on the pericyclic reaction mechanism, the review of new families, some bimolecular photocycloadditions and some promising systems. This new edition provides an efficient entry into this flourishing field, with the core content retained from the original work to provide a basic introduction into the different subjects.
*Second edition of a work first published in 1990, now revised due to constant development of research. *Including updated lists of references (1989-2001), offering immediate access to recent developments.*Providing great basic interest and high application potential bringing scientists together from chemistry, physics and engineering.
Photochromism Based on Pericyclic Reactions Electrocyclization Reactions
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absorbance absorption band absorption spectra anthracene aromatic atom azo compounds azobenzene bacteriorhodopsin benzene benzopyran bond Chem chemical Chim chromophore colored form concentration conformation crystals decay dependence derivatives dipole effect electronic emission energy equation ethanol experimental fluorescence formation fulgides geometry Guglielmetti heterocyclic hydrogen indoline induced interaction intermediate intersystem crossing intramolecular ions irradiation isomer isomerization kcal/mol kinetic laser Lett lifetime light matrix mechanism merocyanine molecular molecules observed obtained OCH3 optical parameters Photobiol photochemical Photochemistry photochromic photochromic compounds photochromic systems photodimers photoisomerization photolysis photomerocyanine photoproduct photoreaction Phys polar polymer properties protein proton quantum yield rate constants reaction rearrangement retinal reversible rhodopsin ring opening room temperature Scheme sensitizer shift silver halide solution solvent species spectroscopy spectrum spirooxazine spiropyran stable steric stilbene structure studies substituents Tetrahedron thermal thermochromic trans transition triplet vibrational viscosity wavelength