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https://hdl.handle.net/2440/55144
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DC Field | Value | Language |
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dc.contributor.author | Basu Baul, T. | - |
dc.contributor.author | Das, P. | - |
dc.contributor.author | Chandra, A. | - |
dc.contributor.author | Mitra, S. | - |
dc.contributor.author | Pyke, S. | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | Dyes and Pigments, 2009; 82(3):379-386 | - |
dc.identifier.issn | 0143-7208 | - |
dc.identifier.uri | http://hdl.handle.net/2440/55144 | - |
dc.description.abstract | The structures of several azo-benzoic acids, 4-[((E)-1-{2-hydroxy-5-[(E)-2-(aryl)-1-diazenyl]phenyl}methylidene)amino]benzoic acid along with their precursors 2-hydroxy-5-[(E)-(aryldiazenyl)]benzaldehydes were confirmed using 1H, 13C NMR, UV–VIS and IR spectroscopic techniques. UV–VIS absorption spectra were measured in pure organic solvents while complementary spectroscopic experiments using mixed solvent systems as well as in the presence of base were undertaken to characterize the different species present in solution. Both acid–base dissociation and azo–hydrazone tautomerism occurred in solution, with the extent of the individual equilibria being dependent on the solvent composition and/or pH of the medium. Molecular structures and geometries were optimized using the B3LYP density functional theory method employing the 6-31G(d) basis set. | - |
dc.description.statementofresponsibility | Tushar S. Basu Baul, Pradip Das, Asit K. Chandra, Sivprasad Mitra and Simon M. Pyke | - |
dc.language.iso | en | - |
dc.publisher | Elsevier Sci Ltd | - |
dc.source.uri | http://dx.doi.org/10.1016/j.dyepig.2009.02.012 | - |
dc.subject | Azo-dyes | - |
dc.subject | 4-[((E)-1-{2-Hydroxy-5-[(E)-2-(aryl)-1-diazenyl]phenyl}methylidene)-amino]benzoic acid | - |
dc.subject | NMR | - |
dc.subject | UV–VIS spectroscopy | - |
dc.subject | DFT calculation | - |
dc.subject | Structures | - |
dc.title | The synthesis, characterization and structures of some 4-[((E)-1-{2-hydroxy-5-[(E)-2-(aryl)-1-diazenyl]phenyl}methylidene)amino]benzoic acid | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/j.dyepig.2009.02.012 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Pyke, S. [0000-0002-0061-5115] | - |
Appears in Collections: | Aurora harvest Chemistry publications |
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