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Parallel NMR Supersequences : Ten Spectra in a Single Measurement
- Kupče, Ēriks (author)
- Yong, Jonathan R. J. (author)
-
- Widmalm, Göran (author)
- Stockholms universitet,Institutionen för organisk kemi
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- Claridge, Tim D. W. (author)
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- (creator_code:org_t)
- 2021-11-09
- 2021
- English.
- In: JACS Au. - : American Chemical Society (ACS). - 2691-3704. ; 1:11, s. 1892-1897
- Journal article (peer-reviewed)
Abstract
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- The principles employed in parallel NMR and MRI are applied to NMR supersequences yielding as many as ten 2D NMR spectra in one measurement. We present a number of examples where two NOAH (NMR by Ordered Acquisition using 1H-detection) supersequences are recorded in parallel, thus dramatically increasing the information content obtained in a single NMR experiment. The two parallel supersequences entangled by time-sharing schemes (IPAP-seHSQC, HSQC-COSY, and HSQC-TOCSY) incorporate also modified (sequential and/or interleaved) conventional pulse schemes (modules), including HMBC, TOCSY, COSY, CLIP-COSY, NOESY, and ROESY. Such parallel supersequences can be tailored for specific applications, for instance, the analysis and characterization of molecular structure of complex organic molecules from a single measurement. In particular, the CASPER software was used to establish the structure of a tetrasaccharide, β-LNnTOMe, with a high degree of confidence from a single measurement involving a parallel NOAH-5 supersequence.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Parallel NMR
- NOAH supersequences
- CASPER
- CASE
- oligosaccharides
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- art (subject category)
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