Weak association between alkali metal ions and mononegative ions of aromatic hydrocarbons

Nishiguchi, Hiroaki; Nakai, Yoshio; Nakamura, Kazuo; Ishizu, Kazuhiko; Deguchi, Yasuo; Takaki, Hideo

doi:10.1080/00268976500100171

Cited by 31 publications

(8 citation statements)

References 11 publications

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“…After several trials with different solvents and conditions, the complex of lithium biphenyl in THP afforded the required crystals. It is interesting to notice that the solvent for crystallization was THP, a less coordinating solvent in which close contact ions are actually observed by EPR . Despite that, it is the solvent-separated ion pair and not the contact ion pair that crystallizes.…”

Section: Resultsmentioning

confidence: 99%

On the Nature of Lithium Biphenyl in Ethereal Solvents. A Critical Analysis Unifying DFT Calculations, Physicochemical Data in Solution, and a X-ray Structure

2011

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The lithium ion is an important type of electrolyte that has technological applications in the manufacture of lithium ion cells; therefore, a better understanding of the nature of its solutions is desirable. When associated to the radical anion of biphenyl in an organic solvent, it forms conducting solutions comparable to strong electrolytes such as lithium perchlorate. We have studied the lithium biphenyl solution in dimethoxyethane using DFT calculations. The nature of these ionic solutions is described in terms of a dynamic equilibrium between different types of ionic associations, the composition of which depends on the solvent and the temperature. The X-ray structure of [Li(+)·4C(5)H(10)O][C(12)H(10)(•-)], a solvent-separated ion pair of lithium biphenyl complexed with tetrahydropyran, is reported. Its main structural characteristics coincide with the calculated one, which we think is the dominant species at room temperature, in agreement with the available physicochemical data.

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Section: Resultsmentioning

confidence: 99%

On the Nature of Lithium Biphenyl in Ethereal Solvents. A Critical Analysis Unifying DFT Calculations, Physicochemical Data in Solution, and a X-ray Structure

2011

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“…12 shows that the EPR signal intensity of m55 increase with scanning time equilibrating at 543 K, further verifying the existence of the free radical intermediates and their stable characteristics at high temperatures. As no hyperfine splitting structures were observed in our following investigation [50][51], the type of the involving free radical intermediates still needs to be further studied.…”

Section: Epr Characterizationmentioning

confidence: 88%

Systematic study on highly efficient Thermal Synergistic Polymerization effect between alicyclic imide moiety and phthalonitrile: Scope, Properties and Mechanism

Ping

et al. 2016

Polymer

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“…with lithium. 8 This is since then the most prevalent picture of the dominant species present in these solutions ( Fig. 1b-c), 9 with few exceptions (Fig.…”

mentioning

confidence: 80%

Spontaneous disproportionation of lithium biphenyl in solution: a combined experimental and theoretical study

et al. 2018

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Weak association between alkali metal ions and mononegative ions of aromatic hydrocarbons

Cited by 31 publications

References 11 publications

On the Nature of Lithium Biphenyl in Ethereal Solvents. A Critical Analysis Unifying DFT Calculations, Physicochemical Data in Solution, and a X-ray Structure

On the Nature of Lithium Biphenyl in Ethereal Solvents. A Critical Analysis Unifying DFT Calculations, Physicochemical Data in Solution, and a X-ray Structure

Systematic study on highly efficient Thermal Synergistic Polymerization effect between alicyclic imide moiety and phthalonitrile: Scope, Properties and Mechanism

Spontaneous disproportionation of lithium biphenyl in solution: a combined experimental and theoretical study

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