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Issue 6, 2015
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Order in the chaos: the secret of the large negative entropy of dissolving 1-alkyl-3-methylimidazolium chloride in trihexyltetradecylphosphonium chloride

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Abstract

The dissolution of 1-alkyl-3-methylimidazolium chloride ILs with short alkyl chains in trihexyltetradecylphosphonium chloride does not only exhibit a large negative entropy. Also, in the resulting mixtures, the phosphonium cation diffuses faster than the much smaller imidazolium cation. Both unexpected features originate from the formation of a large symmetric ion cluster cage in which the imidazolium cation is caught by three chloride anions and four phosphonium cations.

Graphical abstract: Order in the chaos: the secret of the large negative entropy of dissolving 1-alkyl-3-methylimidazolium chloride in trihexyltetradecylphosphonium chloride

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The article was received on 03 Nov 2014, accepted on 02 Jan 2015 and first published on 02 Jan 2015


Article type: Communication
DOI: 10.1039/C4CP05074F
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Citation: Phys. Chem. Chem. Phys., 2015,17, 4034-4037
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    Order in the chaos: the secret of the large negative entropy of dissolving 1-alkyl-3-methylimidazolium chloride in trihexyltetradecylphosphonium chloride

    S. Zahn and A. Stark, Phys. Chem. Chem. Phys., 2015, 17, 4034
    DOI: 10.1039/C4CP05074F

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