Anomalous Dynamics in tert-Butyl Alcohol–Water and Trimethylamine N-Oxide–Water Binary Mixtures: A Femtosecond Transient Absorption Study

[Image: see text] In this article, we have investigated the unusual dynamics of tert-butyl alcohol (TBA)–water and trimethylamine N-oxide (TMAO)–water binary mixtures using solvation dynamics as a tool. For this purpose, femtosecond transient absorption spectroscopy has been employed. Although these...

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Autores principales: Banik, Debasis, Bhattacharya, Sayantan, Datta, Prasanta Kumar, Sarkar, Nilmoni
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6641418/
https://www.ncbi.nlm.nih.gov/pubmed/31457899
http://dx.doi.org/10.1021/acsomega.7b01595
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author Banik, Debasis
Bhattacharya, Sayantan
Datta, Prasanta Kumar
Sarkar, Nilmoni
author_facet Banik, Debasis
Bhattacharya, Sayantan
Datta, Prasanta Kumar
Sarkar, Nilmoni
author_sort Banik, Debasis
collection PubMed
description [Image: see text] In this article, we have investigated the unusual dynamics of tert-butyl alcohol (TBA)–water and trimethylamine N-oxide (TMAO)–water binary mixtures using solvation dynamics as a tool. For this purpose, femtosecond transient absorption spectroscopy has been employed. Although these two molecules are isosteres to each other, a significant difference in water dynamics has been observed. The solvation times in TBA–water binary mixtures are found to be between 1.5 and 15.5 ps. On the contrary, we have observed very fast dynamics in TMAO–water binary mixtures (between 210 and 600 fs). Interestingly, unusual retardation in dynamics is observed at 0.10 mole fraction of TBA and TMAO in both the binary mixtures.
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spelling pubmed-66414182019-08-27 Anomalous Dynamics in tert-Butyl Alcohol–Water and Trimethylamine N-Oxide–Water Binary Mixtures: A Femtosecond Transient Absorption Study Banik, Debasis Bhattacharya, Sayantan Datta, Prasanta Kumar Sarkar, Nilmoni ACS Omega [Image: see text] In this article, we have investigated the unusual dynamics of tert-butyl alcohol (TBA)–water and trimethylamine N-oxide (TMAO)–water binary mixtures using solvation dynamics as a tool. For this purpose, femtosecond transient absorption spectroscopy has been employed. Although these two molecules are isosteres to each other, a significant difference in water dynamics has been observed. The solvation times in TBA–water binary mixtures are found to be between 1.5 and 15.5 ps. On the contrary, we have observed very fast dynamics in TMAO–water binary mixtures (between 210 and 600 fs). Interestingly, unusual retardation in dynamics is observed at 0.10 mole fraction of TBA and TMAO in both the binary mixtures. American Chemical Society 2018-01-11 /pmc/articles/PMC6641418/ /pubmed/31457899 http://dx.doi.org/10.1021/acsomega.7b01595 Text en Copyright © 2018 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Banik, Debasis
Bhattacharya, Sayantan
Datta, Prasanta Kumar
Sarkar, Nilmoni
Anomalous Dynamics in tert-Butyl Alcohol–Water and Trimethylamine N-Oxide–Water Binary Mixtures: A Femtosecond Transient Absorption Study
title Anomalous Dynamics in tert-Butyl Alcohol–Water and Trimethylamine N-Oxide–Water Binary Mixtures: A Femtosecond Transient Absorption Study
title_full Anomalous Dynamics in tert-Butyl Alcohol–Water and Trimethylamine N-Oxide–Water Binary Mixtures: A Femtosecond Transient Absorption Study
title_fullStr Anomalous Dynamics in tert-Butyl Alcohol–Water and Trimethylamine N-Oxide–Water Binary Mixtures: A Femtosecond Transient Absorption Study
title_full_unstemmed Anomalous Dynamics in tert-Butyl Alcohol–Water and Trimethylamine N-Oxide–Water Binary Mixtures: A Femtosecond Transient Absorption Study
title_short Anomalous Dynamics in tert-Butyl Alcohol–Water and Trimethylamine N-Oxide–Water Binary Mixtures: A Femtosecond Transient Absorption Study
title_sort anomalous dynamics in tert-butyl alcohol–water and trimethylamine n-oxide–water binary mixtures: a femtosecond transient absorption study
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6641418/
https://www.ncbi.nlm.nih.gov/pubmed/31457899
http://dx.doi.org/10.1021/acsomega.7b01595
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