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Issue 20, 2015
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Bis(ammonium) ionic liquids with herbicidal anions

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Abstract

The method of synthesis of the novel bis(ammonium) herbicidal ionic liquids with the cation containing two quaternary nitrogen atoms was described. New compounds, containing three structurally different linkers, were prepared via acid–base reaction between the corresponding bis(ammonium) hydroxides and herbicides in the form of free acids. In addition, phase transitions, thermal stability and solubility in common solvents were determined. The herbicidal efficacy was tested in greenhouse experiments, wherein test plants were lambsquarters (Chenopodium album L.) cornflower (Centaurea cyanus L.), white mustard (Sinapis alba L.) and winter rape (Brassica napus L.). The biological activity of the anion (2,4-D, MCPA, Mecoprop, Dicamba) in all new HILs was preserved. Moreover, the efficacy of some salts was several times higher when compared to commercial formulations.

Graphical abstract: Bis(ammonium) ionic liquids with herbicidal anions

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Article information


Submitted
10 Dec 2014
Accepted
26 Jan 2015
First published
26 Jan 2015

RSC Adv., 2015,5, 15487-15493
Article type
Paper
Author version available

Bis(ammonium) ionic liquids with herbicidal anions

M. Niemczak, R. Giszter, K. Czerniak, K. Marcinkowska and F. Walkiewicz, RSC Adv., 2015, 5, 15487
DOI: 10.1039/C4RA16151C

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