Topic
Tetrahydrofuran
About: Tetrahydrofuran is a research topic. Over the lifetime, 11778 publications have been published within this topic receiving 158241 citations. The topic is also known as: diethylene oxide & 1,4-epoxybutane.
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TL;DR: In this article, a vanadium acetylacetonate redox flow battery with different organic solvents and tetrabutylammonium hexafluorophosphate has been investigated.
58 citations
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TL;DR: A series of neutral lanthanide complexes supported by ONNO Salalen-type ligands were synthesized, and their catalytic activity for the polymerization of rac-lactide (rac-LA) was explored.
58 citations
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TL;DR: In this article, it was shown that the reaction of 1 or elemental magnesium with BrCPh3 in THF or addition of THF to 4 yields a red solid of the Grignard reagent containing some paramagnetic species.
58 citations
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TL;DR: In this article, Liss et al. showed that polyphenylacetylenes bearing an amino group exhibited an induced circular dichroism (ICD) in the UV-visible region, probably due to a prevailing one-handed helical conformation upon complexation with optically active carboxylic and α-hydroxy acids.
58 citations
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TL;DR: In this article, a trisolvated cyclic mixed dimer structure of lithium diphenylamide in THF/hydrocarbon solutions (THF = tetrahydrofuran) was shown to be a cyclic oligomer.
Abstract: /sup 6/Li, /sup 13/C, and /sup 15/N NMR spectroscopic studies of lithium diphenylamide in THF/hydrocarbon solutions (THF = tetrahydrofuran) detected two different species. /sup 6/Li and /sup 15/N NMR spectroscopic studies of (/sup 6/Li, /sup 15/N)lithium diphenylamide showed the species observed at low THF concentrations to be a cyclic oligomer. Structural analogies provided strong support for a dimer while colligative measurements at 0/degrees/C indicated the dimer to be di- or trisolvated. On the basis of the observed mass action effects, the species appearing at intermediate THF concentrations is assigned as a contact or solvent-separated ion-paired monomer. Lithium diphenylamide forms a 1:1 adduct with lithium bromide at low THF concentrations. A combination of /sup 6/Li-/sup 15/N double labeling studies and colligative measurements supports a trisolvated cyclic mixed dimer structure. Although detailed spectroscopic studies at elevated THF concentrations were precluded by high fluctionality, the similarity of the /sup 13/C chemical shifts of lithium diphenylamide in the presence and absence of lithium bromide provide indirect evidence that the mixed dimer undergoes a THF concentration dependent dissociation to the monomeric amide and free lithium bromide. 24 references, 9 figures, 2 tables.
58 citations