The physical significance of the Kamlet-Taft π* parameter of ionic liquids.
The physical significance of the Kamlet-Taft π* parameter of ionic liquids.
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离子液体Kamlet-Taft Ï*参数的物理意义
DOI:
10.1039/d0cp04989a
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
S. Spange
中科院分区:
文献类型:
--
作者:
N. Weiß;C. H. Schmidt;G. Thielemann;E. Heid;C. Schröder;S. Spange
The Kamlet–Taft dipolarity/polarizability parameters π* for various ionic liquids were determined using 4-tert-butyl-2-((dicyanomethylene)-5-[4-N,N-diethylamino)-benzylidene]-Δ3-thiazoline and 5-(N,N-dimethylamino)-5′-nitro-2,2′-bithiophene as solvatochromic probes. In contrast to the established π*-probe N,N-diethylnitroaniline, the chromophores presented here show excellent agreement with polarity measurement using the chemical shift of 129Xe. They do not suffer from additional bathochromic UV/vis shifts caused by hydrogen-bonding resulting in too high π*-values for some ionic liquids. In combination with large sets of various ionic liquids, these new chromophores thereby allow for detailed analysis of the physical significance of π* and the comparison to quantum-mechanical methods. We find that π* correlates strongly with the ratio of molar refractivity to molar volume, and thus with the refractive index.
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DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
G. Schmidt;I. Woecht;A. Schmalfuss
通讯作者:
A. Schmalfuss
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
J. M. Padró;M. Reta
通讯作者:
M. Reta
DOI:
10.1063/1.2754690
发表时间:
2007-07
期刊:
The Journal of chemical physics
影响因子:
--
作者:
C. Schröder;T. Rudas;G. Neumayr;W. Gansterer;O. Steinhauser
通讯作者:
C. Schröder;T. Rudas;G. Neumayr;W. Gansterer;O. Steinhauser
影响因子:
4.3
作者:
Holzweber, Markus;Lungwitz, Ralf;Doerfler, Denise;Spange, Stefan;Koel, Mihkel;Hutter, Herbert;Linert, Wolfgang
通讯作者:
Linert, Wolfgang
DOI:
10.1002/cmtd.202000039
发表时间:
2020-10
期刊:
--
影响因子:
--
作者:
S. Spange;Nadine Weiß;Caroline H. Schmidt;K. Schreiter
通讯作者:
S. Spange;Nadine Weiß;Caroline H. Schmidt;K. Schreiter