Effect of organic and a Hofmeister series of inorganic counterions on the solvation dynamics and rotational relaxation in aqueous micelles of hexadecyltrimethylammonium surfactants

2017 ◽  
Vol 345 ◽  
pp. 98-108 ◽  
Author(s):  
Sunita Kumari ◽  
Sonu ◽  
G. Sundar ◽  
Subit K. Saha
Keyword(s):  
Rotational Relaxation ◽  
Hofmeister Series ◽  
Solvation Dynamics ◽  
Aqueous Micelles

scholarly journals Effect of Urea on Solvation Dynamics and Rotational Relaxation of Coumarin 480 in Aqueous Micelles of Cationic Gemini Surfactants with Different Spacer Groups

ACS Omega ◽  
2018 ◽  
Vol 3 (3) ◽  
pp. 3079-3095 ◽  
Author(s):  
Sunita Kumari ◽  
Sonu ◽  
Sayantan Halder ◽  
Rishika Aggrawal ◽  
Ganapathisubramanian Sundar ◽  
...  
Keyword(s):  
Gemini Surfactants ◽  
Rotational Relaxation ◽  
Solvation Dynamics ◽  
Cationic Gemini Surfactants ◽  
Aqueous Micelles

Effects of 1-Butyl-3-methyl Imidazolium Tetrafluoroborate Ionic Liquid on Triton X-100 Aqueous Micelles: Solvent and Rotational Relaxation Studies

2011 ◽  
Vol 115 (21) ◽  
pp. 6957-6963 ◽  
Author(s):  
Rajib Pramanik ◽  
Souravi Sarkar ◽  
Chiranjib Ghatak ◽  
Vishal Govind Rao ◽  
Sarthak Mandal ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Rotational Relaxation ◽  
Relaxation Studies ◽  
Aqueous Micelles ◽  
Triton X

Solvation, rotational relaxation and fluorescence correlation spectroscopic study on ionic liquid-in-oil microemulsions containing triple-chain surface active ionic liquids (SAILs)

RSC Advances ◽  
2016 ◽  
Vol 6 (78) ◽  
pp. 74604-74613 ◽  
Author(s):  
Chiranjib Banerjee ◽  
Niloy Kundu ◽  
Arpita Roy ◽  
Debasis Banik ◽  
Mintu Halder ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Spectroscopic Study ◽  
Rotational Relaxation ◽  
Solvation Dynamics ◽  
Fluorescence Correlation ◽  
Surface Active Ionic Liquid ◽  
Surface Active

In this article, solvation dynamics and rotational relaxation approaches have been applied to explore the microheterogeneity of surface active ionic liquid (SAIL) containing microemulsions, i.e. [P13][Tf2N] or [N3111][Tf2N]/[BHD][AOT]/[IPM].

The solvation dynamics and rotational relaxation of protonated meso-tetrakis(4-sulfonatophenyl)porphyrin in imidazolium-based ionic liquids measured with a streak camera

2013 ◽  
Vol 17 (05) ◽  
pp. 367-375 ◽  
Author(s):  
Yun Fang Zhao ◽  
Guang Yu Gao ◽  
Shu Feng Wang ◽  
Wei Jun Jin
Keyword(s):  
Ionic Liquids ◽  
Fluorescence Spectra ◽  
Streak Camera ◽  
Relaxation Times ◽  
Rotational Relaxation ◽  
Solvation Dynamics ◽  
Local Motion ◽  
State Behavior ◽  
Red Edge Effect ◽  
Different Time Scales

For the steady-state behavior of diprotonated tetrakis(4-sulfonatophenyl)porphyrin (H4TPPS2-) in five imidazolium ionic liquids (ILs), the absorption positions of H4TPPS2- primarily depend on the constituent ions of the ILs whereas the emission positions of H4TPPS2- strongly depend on the polarity of the ILs. The fluorescence spectra of H4TPPS2- with different excitation wavelengths show no red-edge effect in our system. The dynamics of H4TPPS2- in ILs is further studied with a streak camera, and the relaxation process of ILs occurs on two different time scales. The short lived component attributed to the local motion of the cations and the anions around the porphine core varies from 32 to 196 ps. The long lived one originated from the collective diffusive motions of the cations and anions varies from 460 to 1072 ps. The average solvation time depends on the viscosity of the ILs. The rotational relaxation times of H4TPPS2- decrease as the viscosity of the ILs decreases.

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