1980
DOI: 10.1016/0040-4020(80)80196-7
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17O nuclear magnetic resonance:mutual effect between two β oxygen atoms and α,β double bond effect on 17O chemical shift

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Cited by 42 publications
(6 citation statements)
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“…The signal at K21.6 ppm is assumed to be the terminal methoxy group of the polyethylene glycol side chain. This chemical shift is consistent with that one of ethyl methyl ether, where a chemical shift of K22.5 ppm was reported [21]. The relatively low linewidth of 130 Hz reflects the more steric freedom.…”
Section: Signal Assignmentsupporting
confidence: 87%
See 1 more Smart Citation
“…The signal at K21.6 ppm is assumed to be the terminal methoxy group of the polyethylene glycol side chain. This chemical shift is consistent with that one of ethyl methyl ether, where a chemical shift of K22.5 ppm was reported [21]. The relatively low linewidth of 130 Hz reflects the more steric freedom.…”
Section: Signal Assignmentsupporting
confidence: 87%
“…However, the oxygen atom of the sildiphenyl ether unit complicated signal assignment, as it could not be detected. The reference compounds diphenyl ether and a poly-mphenyl ether (OS-138) resonated at 117 and 119 ppm, which corresponds roughly to values from the literature ranging from 102 to 114 ppm [21][22][23]. However, the linewidth increased with molecular weight: diphenyl ether (molecular weight 170) exhibits a linewidth of 330 Hz, whereas the poly-m-phenyl ether (molecular weight 554) has a linewidth of above 870 Hz.…”
Section: Signal Assignmentmentioning
confidence: 56%
“…In addition to greater amounts of aggregate sulfur, a higher Li:S ratio for the (Li 2 S 4 ) z clusters may play a role in the greater number of close Li-Li contacts in the large (Li 2 S 4 ) z clusters. As with the pure (Li 2 S 4 ) z in DOL/DME solvent classical MD trajectory, larger (Li 2 S 6 ) z>4 clusters are observed (as shown in Figure1e).DOL alone have been reported to be -23 to -23.9 ppm[65][66][67] and 33.5 to 34.8 ppm,65,[68][69][70] respectively. Li chemical shifts with increasing cluster size.…”
mentioning
confidence: 65%
“…However, the change in chemical shifts with temperature for the DOL case is much less dramatic compared to that for the DME case. (Figure S4) The chemical shifts for DME and DOL alone have been reported to be −23 to −23.9 ppm and 33.5 to 34.8 ppm, , respectively.…”
Section: Resultsmentioning
confidence: 99%
“…270 ppm). This deshielding is not an effect specific to mesoionic compounds nor to heterocycles at all: it reappears in the difference between isoxazole 8 (6,350 ppm [26]) and furan (6,228 ppm [27]) as well as in that between 0-methylhydroxylamine (6, f 3 5 ppm [7]) and dimethyl ether (6, -52 ppm [28]). In the furoxans 6 and 7,0(1) is deshielded by the influence of two N-atoms, and the shift difference Ad, is doubled yielding 6, 475 ppm [7] and 490 ppm, respectively [24], confirming the attribution of the lower-field resonance to O(1).…”
Section: Ementioning
confidence: 88%