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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1002/mrc.3840
|2 doi
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|a pubmed24n0731.xml
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|a eng
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| 100 |
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|a Martin, Gary E
|e verfasserin
|4 aut
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| 245 |
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|a Inversion of 1J(CC) correlations in 1,n-ADEQUATE spectra
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 01.04.2013
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|a Date Revised 18.07.2012
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|a published: Print
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|a Citation Status MEDLINE
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|a Copyright © 2012 John Wiley & Sons, Ltd.
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|a ADEQUATE experiments provide an alternative to the more commonly employed GHMBC experiment for the establishment of long-range heteronuclear connectivities. The 1,1-ADEQUATE experiment allows the unequivocal identification of both protonated and non-protonated carbon resonances adjacent to a protonated carbon. The 1,n-ADEQUATE experiment establishes correlations via an initial (1)J(CH) heteronuclear transfer followed by an (n)J(CC) out-and-back transfer, most typically, via three carbon-carbon bonds. Hence, the 1,n-ADEQUATE experiment allows the equivalent of (4)J(CH) heteronuclear correlations to be probed when they are not observed in a GHMBC spectrum. Aside from the lower sensitivity of the 1,n-ADEQUATE experiment relative to GHMBC experiments, the interpretation of the former is also complicated by the 'leakage' of (1)J(CC) correlations into the spectrum that must be identified. A method for the inversion of (1)J(CC) correlations to facilitate the interpretation of 1,n-ADEQUATE spectra is presented that allows a single experiment to be performed to access (1)J(CC) and (n)J(CC) correlation information
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|a Journal Article
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|a Protons
|2 NLM
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| 650 |
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|a Pyrrolizidine Alkaloids
|2 NLM
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| 650 |
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|a Carbon
|2 NLM
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| 650 |
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|a 7440-44-0
|2 NLM
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| 650 |
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|a retrorsine
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| 700 |
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|a Williamson, R Thomas
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dormer, Peter G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bermel, Wolfgang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 50(2012), 8 vom: 30. Aug., Seite 563-8
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnns
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| 773 |
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|g volume:50
|g year:2012
|g number:8
|g day:30
|g month:08
|g pages:563-8
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|u http://dx.doi.org/10.1002/mrc.3840
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