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Heteronuclear chemical-shift correlation utilizing homonuclear decoupling and distortionless enhancement by polarization transfer

✍ Scribed by V. Rutar

Publisher: Elsevier Science
Year: 1984
Tongue: English
Weight: 354 KB
Volume: 106
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(84)80291-2

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✦ Synopsis

NMR spectroscopy, selective i?ips of distant protons and distortionless enhancement by polarization transfer are combined into a new two-dimensionaI technique. Correlation maps are simpfifkd by suppressing most homonuclear couplings, thus improving the signal-to-noise ratio. Applications include accurate measurements and assignments of t H chemical shifts as well as couplings with additional nuclear spins (lgF, 31Pl etc.) in the molecule. The DEPT pulse sequence [I ] promotes the transfer of polarization from abundant (usually lI3) to di-

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