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

当前位置： X-MOL 学术 › ACS Omega › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Anomalous Dynamics in tert-Butyl Alcohol–Water and Trimethylamine N-Oxide–Water Binary Mixtures: A Femtosecond Transient Absorption Study
ACS Omega ( IF 3.7 ) Pub Date : 2018-01-11 00:00:00 , DOI: 10.1021/acsomega.7b01595
Debasis Banik ₁ , Sayantan Bhattacharya ₁ , Prasanta Kumar Datta ₁ , Nilmoni Sarkar ₁

Affiliation

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.

中文翻译：

叔丁基醇-水和三甲胺N-氧化物-水二元混合物的反常动力学：飞秒瞬态吸收研究

在本文中，我们使用溶剂化动力学作为工具研究了叔丁醇（TBA）-水和三甲胺N-氧化物（TMAO）-水二元混合物的异常动力学。为了这个目的，已经使用了飞秒瞬态吸收光谱法。尽管这两个分子彼此等排，但已观察到水动力学的显着差异。发现TBA-水二元混合物中的溶剂化时间在1.5到15.5 ps之间。相反，我们观察到TMAO-水二元混合物的动态非常快（在210至600 fs之间）。有趣的是，在两种二元混合物中，TBA和TMAO的摩尔分数为0.10时，都观察到了异常的动力学延迟。

更新日期：2018-01-11

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11