Application of the tetraphenylphosphonium tetraphenylborate (TPTB) assumption to the thermodynamic properties of solvated ions in dimethylsulfoxide

文献情報

出版日 2012-01-30

DOI 10.1039/C2CP23051H

インパクトファクター 3.676

著者

Dorota Warmińska, Janusz Stangret

原文を見る

要旨

The extra-thermodynamic tetraphenylphosphonium tetraphenylborate assumption has been tested for dimethylsulfoxide using ATR FTIR spectroscopy. Solute-affected DMSO spectra show that, contrary to the TPTB assumption, the charge density on BPh4− and Ph4P+ ions is sufficiently high to influence the DMSO molecules orientation with respect to the cation and to the anion. Apparently, the Ph4P+ cation does not affect the structure of DMSO whereas the BPh4− anion clearly breaks it up. Our results indicate that the TPTB extra-thermodynamic assumption is not a sound basis for splitting thermodynamic values obtained for DMSO solutions into ionic contributions.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.