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Negative solvatochromism of a series of pyridinium phenolate betaine dyes with increasing steric hindrance

✍ Scribed by Patrice Jacques; Bernadette Graff; Vincent Diemer; Emel Ay; Hélène Chaumeil; Christiane Carré; Jean-Pierre Malval


Book ID
113555513
Publisher
Elsevier Science
Year
2012
Tongue
English
Weight
482 KB
Volume
531
Category
Article
ISSN
0009-2614

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The well-known solvent polarity indicators, pyridinium-N-phenolate betaine dyes, appeared to be promising reactants for comparing the electrophilicity of NMR chemical shift reagents such as lanthanide(III) complexes with dipivaloylmethane [tris (2,2,6,6-tetramethylheptan-3,5-dione)]. These dyes are