Subuddhi, Usharani ; Vuram, Prasanna K. ; Chadha, Anju ; Mishra, Ashok K. (2014) Disaggregation induced solvatochromic switch: A study of dansylated polyglycerol dendrons in binary solvent mixture Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 128 . pp. 351-356. ISSN 1386-1425
Full text not available from this repository.
Official URL: http://doi.org/10.1016/j.saa.2014.02.150
Related URL: http://dx.doi.org/10.1016/j.saa.2014.02.150
Abstract
A reversal in solvatochromic behaviour was observed in second and third generation glycerol based dansylated polyether dendrons in water on addition of a second solvent like methanol or acetonitrile. Below a certain percentage of the nonaqueous solvent there is a negative-solvatochromism observed and above that there is a switch to positive-solvatochromism. The negative-solvatochromism is attributed to the progressive disaggregation of the dendron aggregates by the nonaqueous solvent component. Once the disaggregation process is complete, positive-solvatochromism is exhibited by the dendron monomers. Higher the hydrophobicity of the dendron more is the amount of the second solvent required for disaggregation.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 131745 |
| Deposited On: | 08 Dec 2022 05:14 |
| Last Modified: | 08 Dec 2022 05:14 |
Repository Staff Only: item control page
