Dithiazolylethene-based molecular switches for nonlinear optical properties and fluorescence : synthesis, crystal structure and ligating properties

Two photochromic dithiazolylethene-based derivatives (1a and 2a) incorporating a push-pull structural motif D-Pi-A are synthesized and structurally characterized. The photochemical reactions, which reversibly modify the connection between the electron donor and acceptor, result in simultaneous and e...

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Bibliographic Details
Published in:Journal of materials chemistry 2007-01, Vol.17 (41), p.4414-4425
Main Authors: GIRAUD, Marion, LEAUSTIC, Anne, GUILLOT, Régis, PEI YU, LACROIX, Pascal G, NAKATANI, Keitaro, PANSU, Robert, MAUREL, Francois
Format: Article
Language:English
Subjects:
Chemical Sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optical materials
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optics
or physical chemistry
Organic compounds
Photoluminescence
Physics
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
Theoretical and
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Summary:Two photochromic dithiazolylethene-based derivatives (1a and 2a) incorporating a push-pull structural motif D-Pi-A are synthesized and structurally characterized. The photochemical reactions, which reversibly modify the connection between the electron donor and acceptor, result in simultaneous and effective photo-modulations of their NLO and fluorescent properties. The photo-switchable NLO behaviors are investigated theoretically by performing INDO calculations. The presence of chelating sites in 2a allows the synthesis of various metal complexes: Cu(hfac)2*2a, Mn(hfac)2*2a and Ag(2a)2CF3SO3. Their crystal structures are determined.
ISSN:0959-9428
1364-5501
DOI:10.1039/b704806h