Any of a class of organic dyes derived from squaric acid.

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  • Squaraine — Als Squaraine bezeichnet man seit 1980[1] eine Klasse von intensiven Farbstoffen, deren Basis die Quadratsäure bzw. deren Ester sind. Sie werden im deutschsprachigen Raum daher manchmal auch als Quadratsäurefarbstoffe bezeichnet, ältere –… …   Deutsch Wikipedia

  • Squaraine dye — Squaraine Dyes are a class of organic dyes with very intense fluorescence spectra, typically in the red and near infrared region (Absorption maxima are found between 630 and 670nm and their emission maxima are between 650 700nm). They are… …   Wikipedia

  • Rotaxane — Representation graphique d un rotaxane …   Wikipédia en Français

  • Polyméthine — Les polyméthines constituent une classe de colorants possédant le motif (CH=CH )n. Sommaire 1 Structure 1.1 Streptopolyméthines cyanés 1.2 Streptopolyméthine oxonol …   Wikipédia en Français

  • Rotaxane — A rotaxane is a mechanically interlocked molecular architecture consisting of a dumbbell shaped molecule which is threaded through a macrocycle (see graphical representation). The name is derived from the Latin for wheel (rota) and axle (axis).… …   Wikipedia

  • Acide squarique — Général Nom IUPAC 3,4 dihydroxycyclobut 3 ène 1,2 dione No CAS …   Wikipédia en Français

  • Squaric acid — chembox new Reference= [ [http://www.sigmaaldrich.com/catalog/search/ProductDetail/ALDRICH/123447?cm mmc=PubChem public%20database products products 3,4 Dihydroxy 3 cyclobutene 1,2 dione] at Sigma Aldrich] ImageFile=Squaric acid.svg… …   Wikipedia

  • Quadratsäure — Strukturformel Allgemeines Name Quadratsäure Andere Namen …   Deutsch Wikipedia

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