Solvatochromic and Single Crystal Studies of Two Neutral Triarylmethane Dyes with a Quinone Methide StructureReportar como inadecuado




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Centro de Reconocimiento Molecular y Desarrollo Tecnológico IDM, Universitat de València-Universidad Politécnica de Valencia, Dr. Moliner, 50, 46100-Burjassot, Valencia, Spain





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Academic Editors: Scott Reed and Marino Resendiz

Abstract The crystal structure of two neutral triarylmethane dyes with a p-quinone methide core was determined by X-ray diffraction analysis. The spectroscopic characteristics of both compounds in 23 solvents with different polarities or hydrogen-bonding donor HBD abilities has been studied as a function of three solvatochromic parameters ET30, π* and α. Both compounds 1 and 2 showed a pronounced bathochromic shift of the main absorption band on increasing solvent polarity and HBD ability. The correlation is better for compound 2 than for compound 1. The stronger effect and better correlation was observed for compound 2 with the increment of the solvent HBD ability α parameter. View Full-Text

Keywords: triarylmethane dyes; crystal structure; solvatochromic studies triarylmethane dyes; crystal structure; solvatochromic studies





Autor: Katherine Chulvi, Ana M. Costero * , Luis E. Ochando, Salvador Gil, José-Luis Vivancos and Pablo Gaviña *

Fuente: http://mdpi.com/



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