Abstract
We present a new pulse sequence that conditionally excites I spin magnetization only in the presence of a nonzero heteronuclear coupling to an S spin. The pulse sequence, referred to as the reverse INEPT pathway selective pulse or RIPSP, generates a pure I spin rotation by an angle that depends upon the heteronuclear coupling constant in InS spin systems. Experimental demonstrations are shown in 13C labeled chloroform, dichloromethane, and toluene samples and in unlabeled 2,3-dibromopropionic acid and brucine samples.
Original language | English (US) |
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Pages (from-to) | 63-70 |
Number of pages | 8 |
Journal | Journal of Magnetic Resonance |
Volume | 250 |
DOIs | |
State | Published - Jan 2015 |
Keywords
- Average Hamiltonian theory
- Reverse INEPT
- Selective excitation
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Biochemistry
- Biophysics
- Condensed Matter Physics