42 Merocyanine dyes
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Heinz Mustroph
Abstract
Merocyanine dyes belong to the class of neutral polymethine dyes, where one terminal component is typically found in cyanine dyes and the second obtained from an active methylene compound. The different electron acceptor/donator abilities of the two terminal components have a marked impact on the electronic structure of a merocyanine dye and its equilibrium structure and electronic spectra. Their first technical application was spectral sensitization in silver halide photography. Today they have numerous of applications in textile dyeing and as membrane potential sensitive fluorescent dyes.
Abstract
Merocyanine dyes belong to the class of neutral polymethine dyes, where one terminal component is typically found in cyanine dyes and the second obtained from an active methylene compound. The different electron acceptor/donator abilities of the two terminal components have a marked impact on the electronic structure of a merocyanine dye and its equilibrium structure and electronic spectra. Their first technical application was spectral sensitization in silver halide photography. Today they have numerous of applications in textile dyeing and as membrane potential sensitive fluorescent dyes.
Chapters in this book
- Frontmatter I
- Preface V
- Contents VII
- List of contributors XV
- 23 Color measurement 407
- 24 Cyanine dyes 465
- 25 Diarylethene dyes 503
- 26 Diketopyrrolopyrrole (DPP) pigments 525
- 27 Dioxazine pigments 535
- 28 Disazo (Bishydrazone) condensation pigments 543
- 29 Disazo (Bishydrazone) pigments based on acetoacetanilides 555
- 30 Disazo (Bishydrazone) pigments based on pyrazolones 571
- 31 Dyes: quantum chemical calculation of electronic spectra 577
- 32 Effect pigments 605
- 33 Fluorescence and fluorescent dyes 611
- 34 Fulgide dyes 651
- 35 Hemicyanine dyes 671
- 36 Hemioxonol dyes 685
- 37 Historical pigments, dyes and binders 691
- 38 Indophenol and related dyes 749
- 39 Inorganic luminescent pigments 765
- 40 Iron blue pigments 777
- 41 Iron oxide pigments 783
- 42 Merocyanine dyes 799
- 43 Metal complex pigments 815
- 44 Metal effect pigments 829
- Index 849
Chapters in this book
- Frontmatter I
- Preface V
- Contents VII
- List of contributors XV
- 23 Color measurement 407
- 24 Cyanine dyes 465
- 25 Diarylethene dyes 503
- 26 Diketopyrrolopyrrole (DPP) pigments 525
- 27 Dioxazine pigments 535
- 28 Disazo (Bishydrazone) condensation pigments 543
- 29 Disazo (Bishydrazone) pigments based on acetoacetanilides 555
- 30 Disazo (Bishydrazone) pigments based on pyrazolones 571
- 31 Dyes: quantum chemical calculation of electronic spectra 577
- 32 Effect pigments 605
- 33 Fluorescence and fluorescent dyes 611
- 34 Fulgide dyes 651
- 35 Hemicyanine dyes 671
- 36 Hemioxonol dyes 685
- 37 Historical pigments, dyes and binders 691
- 38 Indophenol and related dyes 749
- 39 Inorganic luminescent pigments 765
- 40 Iron blue pigments 777
- 41 Iron oxide pigments 783
- 42 Merocyanine dyes 799
- 43 Metal complex pigments 815
- 44 Metal effect pigments 829
- Index 849
