Colorimetric visualization of acid-base equilibria in non-polar solvent

Visualization of an acid-base equilibrium in a non-polar solvent (dichloromethane), which may be extended to other solvents, is reported. It is based on an oxoporphyrinogen as a multichromic indicator of prevailing acidity in solution and presents up to six distinct hues depending on degree of proto...

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Bibliographic Details
Published inChemical communications (Cambridge, England) Vol. 49; no. 61; pp. 6870 - 6872
Main Authors Shundo, Atsuomi, Ishihara, Shinsuke, Labuta, Jan, Onuma, Yosuke, Sakai, Hideki, Abe, Masahiko, Ariga, Katsuhiko, Hill, Jonathan P
Format Journal Article
LanguageEnglish
Published England 01.01.2013
Subjects
Acid-Base Equilibrium
Colorimetry
Dichloromethane
Indicators
Methylene Chloride - chemistry
Molecular Structure
Protonation
Solvents
Solvents - chemistry
Visualization
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Summary:Visualization of an acid-base equilibrium in a non-polar solvent (dichloromethane), which may be extended to other solvents, is reported. It is based on an oxoporphyrinogen as a multichromic indicator of prevailing acidity in solution and presents up to six distinct hues depending on degree of protonation, tautomeric state or presence of a basic guest.
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ISSN:1359-7345
1364-548X
DOI:10.1039/c3cc42859a