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Photochromism: Molecules and Systems by Heinz Durr, Henri Bouas-Laurent

Photochromism: Molecules and Systems Heinz Durr, Henri Bouas-Laurent ebook
Format: pdf
ISBN: 0444513221, 9780444513229
Page: 1221
Publisher: Elsevier Science

The research award from the National Science Foundation (NSF) will focus on deepening scientists' understanding of spiropyrans, a type of photochromic molecules that change color when exposed to light and heat. The two stereo-isomers of such photochromic compounds represent the distinct states of a light-switchable digital molecular system (Fig. Two are pale yellow crystals that are not fluorescent at room temperature and exhibit photochromism (molecule 1 and 4), while the other two (molecule 2 and 3) are not photochromic , but exhibit fluorescence in the solid state. Novel photochromic material for photoswitching applications. The three-year grant also Their work will use a sophisticated instrument, the nanosecond pulsed laser/detection system, which the college acquired through a previous NSF grant that she and her colleagues received in 2011. (1980 [Florin, I., Rutburge, L., Curvall, M. However, there have been, up to now, no attempts to align the larger mesoscale structures of MPS of block copolymers driven by the photoinduced alignment of photochromic molecules. In Thiazoles and their Benzo Derivatives, edited ); Florin et al. It is important for students to understand that chemical reactions can take place without the addition of other chemicals or elements to the system, which in directly observable in this isomerization. Molecules and Systems, edited ); Bach et al. Fast andreversible photoinduced structural changes characteristic of photochromic materials are particularly interesting as they imply the use of molecular systems for all-optical switching. This was a highly challenging issue. (1996 [Bach, H., Anderle, K., Fuhrmann, Th. In liquid crystalline systems, the molecules behave in collective fashions (cooperative manners), so the photoalignment becomes more and more effective. Kazuya Mori, Yukihide Ishibashi, Hirohisa Matsuda, Syoji Ito, Yutaka The Roles of Molecular Structure and Effective Optical Symmetry in Evolving Dipolar Chromophoric Building Blocks to Potent Octopolar NLO Chromophores. Molecular electronic memory circuits. One-Color Reversible Control of Photochromic Reactions in a Diarylethene Derivative: Three-photon Cyclization and Two-Photon Cycloreversion by Near IR Femtosecond Laser Pulse at 1.28 μm.