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  • 1
    Electronic Resource
    Electronic Resource
    Bestimmung der Zusammensetzung binärer Flüssigkeitsgemische mit Hilfe von Fluorescenzmessungen (1982)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 310 (1982), S. 427-428 
    Details
    ISSN: 1618-2650
    Keywords: Best. von Wasser in organ. Lösungsmitteln ; Spektralphotometrie ; binäre flüssige Gemische, solvatochrome Fluorescenzfarbstoffe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Ein einfaches Verfahren zur Bestimmung von Wasser in organischen Lösungsmitteln und allgemein für die Analyse binärer, flüssiger Gemische unter Verwendung solvatochromer Fluorescenzfarbstoffe wird beschrieben, das auch bei nur wenig transparenten Proben angewendet werden kann. Die Analyse läßt sich ohne Spektrometer, mit einer einfachen Anordnung optischer Filter ausführen.
    Notes: Summary A simple procedure for the determination of water in organic solvents and more generally of the composition of binary liquid mixtures by use of solvatochromic fluorescent dyes is described even for samples with low transparency. The procedure can be carried out without any spectrometer using only an array of optical filters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00483019
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  • 2
    Electronic Resource
    Electronic Resource
    Ein neues, unkompliziertes Verfahren zur Bestimmung der Zusammensetzung binärer Flüssigkeitsgemische (1981)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 308 (1981), S. 441-444 
    Details
    ISSN: 1618-2650
    Keywords: Analyse von binären Flüssigkeitsgemischen, Best. von Wasser in Organ. Lösungsmitteln ; Spektralphotometrie ; solvatochrome Farbstoffe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Ein neues Verfahren zur Bestimmung der Zusammensetzung binärer Flüssigkeitsgemische mit Hilfe solvatochromer Farbstoffe wird beschrieben. Die Analyse erfolgt durch einfache UV/VIS-Absorptionsmessung und ist unter Verwendung einer Zwei-Parameter-Gleichung ein exakter Schnelltest.
    Notes: Summary A new procedure for the determination of the composition of binary liquid mixtures by the use of solvatochromic dyes is described. The analysis, which consists of a simple UV/VIS absorption measurement in combination with a two parameter equation, provides an exact and rapid test.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00466081
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  • 3
    Electronic Resource
    Electronic Resource
    Ein neues, unkompliziert auszuführendes Verfahren zur Bestimmung kleiner Konzentrationen an Wasser in organischen Lösungsmitteln (1981)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 305 (1981), S. 26-28 
    Details
    ISSN: 1618-2650
    Keywords: Best. von Wasser in organ. Lösungsmitteln ; Spektralphotometrie ; Pyridiniumphenolbetain, 2-Parameter-Gleichung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Ein neues Verfahren zur Bestimmung von Wasser in organischen Lösungsmitteln (auch in Spuren) wird beschrieben. Die Solvatochromie des Pyridiniumphenolbetains E T30, die über eine einfach auszuführende UV-Absorptionsmessung bestimmt wird, ermöglicht zusammen mit einer zwei-Parameter-Gleichung eine exakte Wasserbestimmung in organischen Lösungsmitteln als Schnelltest und stellt damit eine Alternative zur Karl-Fischer-Titration dar.
    Notes: Summary A new procedure for the determination of water (even in trace amounts) in organic solvents is described. The solvatochromism of the pyridiniumphenol betaine, E T30, determined by a simple UV-absorption measurement, together with a two-parameter equation, permits an exact determination. The procedure is rapid and is, therefore, an alternative to the Karl-Fischer titration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00491608
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  • 4
    Electronic Resource
    Electronic Resource
    Perylenamidine-imide dyes (1995)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1995 (1995), S. 481-486 
    Details
    ISSN: 0947-3440
    Keywords: Dyes, fluorescent ; Perylene derivatives ; Heterocyclic rings ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Perylene-3,4:9,10-tetracarboxylic acid 3,4-anhydride-9,10-imides are condensed with primary diamines to a number of new basic chromophores with amidine-imide structures. Lightfast dyes are obtained which exhibit a strong fluorescence in solution. The absorption and fluorescence spectra of the title compounds are bathochromically shifted compared to those of the perylene dyes.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.199519950366
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  • 5
    Electronic Resource
    Electronic Resource
    Synthesis of Readily Soluble Tetraazaviolanthrone and -isoviolanthrone fluorescent dyes (1997)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 339 (1997), S. 597-602 
    Details
    ISSN: 0941-1216
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Readily soluble, photostable and highly red fluorescent dyes (3-5) have been obtained from a condensation of perylenetetracarboxylic bisanhydride with primary aliphatic 1,3-diamines containing two geminal long-chain alkyl groups. Analogous red fluorescing dyes have been prepared by the condensation of a corresponding perylene anhydride imide.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.199733901107
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  • 6
    Electronic Resource
    Electronic Resource
    Pyrrolo- and Thiophenoperylenedicarboximides - Highly Fluorescent Heterocycles (1996)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1996 (1996), S. 1587-1591 
    Details
    ISSN: 0947-3440
    Keywords: Perylenes ; Heterocycles ; Fluorescent dyes ; Fluorescent labelling ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Pyrrolo- and thiophenoperylenedicarboximides 4 and 7 were prepared by reductive cyclization of 1-nitroperylenedicarboximides 3 and 5 with phosphorous acid esters and sulfur, respectively. The imides 4 and 7 are highly fluorescent and are easily monofunctionalized by nucleophilic substitution reactions which makes them useful for fluorescent labeling.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.199619961014
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  • 7
    Electronic Resource
    Electronic Resource
    Synthesis of perylene-3,4-dicarboximides  -  Novel highly photostable fluorescent dyesDedicated to Prof. Dr. Christoph Rüchardt on the occasion of his 65th birthday. (1995)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1995 (1995), S. 1229-1244 
    Details
    ISSN: 0947-3440
    Keywords: Fluorescent dyes ; Pigments ; Perylenes ; Carboximides ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Perylene-3,4-dicarboximides 2 are obtained by a decarboxylizing condensation of moderately sterically hindered primary amines with perylene-3,4,9,10-tetracarboxylic 3,4:9,10-bisanhydride (3) in the presence of water. Perylene-3,4-dicarboxylic anhydride (4) is prepared by hydrolysis of the imides with KOH in tert-butyl alcohol. The anhydride may be condensed with any primary amine to the corresponding imide. The imides are highly fluorescent and very photostable dyes.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.1995199507164
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  • 8
    Electronic Resource
    Electronic Resource
    Tangentially Coupled π Systems and their Through-Space Interaction - trichromophoric perylene dyes (1996)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 338 (1996), S. 654-659 
    Details
    ISSN: 0941-1216
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Three perylene tetracarboxylic bisimide chromophores have been attached to a benzene ring in m-position (3). In this way steric and through-bond interactions of the chromophores are minimized and their through-space-interactions can be studied for which an unusually high bathochromic shift has been found. This indicates a destabilization. No exciton coupling has been observed in the trichromophoric dyes.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.199633801124
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  • 9
    Electronic Resource
    Electronic Resource
    Balanced Decarboxylation of Aromatic Polyacids - A One-Step Synthesis of Perylene-3,4-dicarboxylic Anhydride (1997)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1997 (1997), S. 467-468 
    Details
    ISSN: 0947-3440
    Keywords: Decarboxylation ; Carboxylic acids ; Fluorescence spectroscopy ; Perylenes ; Heterocycles ; Dyes ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Perylene-3,4-dicarboxylic anhydride (3) is prepared from technical grade perylene-3,4:9,10-tetracarboxylic anhydride (1) in 25% yield by a partial decarboxylation reaction using noncondensing amines. Perylene-3-carboxylic acid (4) and perylene-3,4-dicarboxylic imide (5) are prepared in the same way in yields of 24% and 76%, respectively, by a variation of the reaction conditions.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.199719970305
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  • 10
    Electronic Resource
    Electronic Resource
    Chiral Bifluorophoric Perylene Dyes with Unusually High CD Effects - a Simple Model for the Photosynthesis Reaction Center (1997)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1997 (1997), S. 1151-1153 
    Details
    ISSN: 0947-3440
    Keywords: Fluorescent dyes ; Perylenes ; Heterocycles ; Photosynthesis reaction center ; CD effects ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The synthesis of a bifluorophoric perylene dye (4a) is described, in which the two chromophores are linked by a chiral binaphthyl unit. A strong exciton coupling of the two chromophores, a bathochromically shifted fluorescence and strong CD effects are observed. The structure of 4 is compared to the photosynthesis reaction center.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.199719970615
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