Abstract
Three classic pyridinium-phenolate sensors exhibiting negative solvatochromism were modified by the addition of a 1,4-phenylene linker, resulting in three derivatives displaying inverted solvatochromism, with inversion points observed in polar solvents, such as DMSO. This study shows that the 1,4-phenylene linker is essential for the inverted solvatochromism of this sensor class. DFT calculations, multiparametric regressions, and molecular dynamics simulations in methanol suggest that the inversion is caused by increased sensitivity to the polarizability of the solvent and the loss of hydrogen bonds in solution. Finally, the present series presents a method for transforming negative solvatochromic pyridinium-phenolates into sensors displaying inverted solvatochromism by adding the 1,4-phenylene unit to the π-linker between the donor-acceptor pair.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
