1991
DOI: 10.1016/s0020-1693(00)83046-7
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Selectivities and thermodynamic parameters of alkali-metal and alkaline-earth-metal complexes of polyethylene glycol dimethyl ethers in methanol and acetonitrile

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Cited by 20 publications
(18 citation statements)
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“…In terms of the entropy effect, DGM as a tridentate solvent ligand, is more thermodynamically favorable than DME (and THF) in the complexion of Mg 2+ during 2 electron oxidation. This is consistent with the stability of these complexes that long-chain glymes lead to more stable complex 36 37 41 53 . In addition, DGM complexion is also kinetically favorable since only one DGM is involved in the stripping process in comparison to 1.5 molecules of DME and 3 molecules of THF.…”
Section: Discussionsupporting
confidence: 85%
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“…In terms of the entropy effect, DGM as a tridentate solvent ligand, is more thermodynamically favorable than DME (and THF) in the complexion of Mg 2+ during 2 electron oxidation. This is consistent with the stability of these complexes that long-chain glymes lead to more stable complex 36 37 41 53 . In addition, DGM complexion is also kinetically favorable since only one DGM is involved in the stripping process in comparison to 1.5 molecules of DME and 3 molecules of THF.…”
Section: Discussionsupporting
confidence: 85%
“…In literature, it has been shown that the ligand displacement in the complex Mg(BH 4 ) 2 ·nL (L = ligand) is achieved according to the series Et 2 O < THF < DME < DGM (diglyme) 37 , which is consistent with the chelating effect 38 39 40 . It is reported that the stability of the solvated Mg(BH 4 ) 2 complexes with those ligands increases with the denticity of the solvent ligands 41 . Mohtadi et al 17 showed a higher coulombic efficiency of Mg(BH 4 ) 2 -based electrolyte in DME solvent (a bidentate ligand) than that in THF solvent (a monodendate ligand).…”
mentioning
confidence: 99%
“…It is evident that the 25 Mg chemical shift moves to lower values from DME through diglyme to triglyme. This indicates that the coordination interactions increase with chain length, which is consistent with the known literature [88][89][90][91]. However, interestingly, the 25 Mg chemical shift in tetraglyme falls between that of triglyme and diglyme.…”
Section: Sem Characterizationsupporting
confidence: 90%
“…For reference, we have also investigated the binding of Li + that was previously shown to be negligible for longer PEO chains . Short chains were previously indicated to exhibit a binding that was stronger than that for longer chains (crown ethers, i.e., cyclic short PEO chains, exhibit even stronger binding , ). Yet, high-quality quantitative data are still lacking with regard to the variation of binding over the chain length.…”
Section: Introductionmentioning
confidence: 99%