title: A new selective population transfer experiment using a double pulsed field gradient spin-echo.
abstract: A new pulse sequence is proposed for the determination of scalar coupling correlation in small- and medium-sized organic compounds. The method uses a combination of the double pulsed field gradient spin-echo (DPFGSE) and the selective population transfer (SPT) techniques and is shown to be useful in the analysis of complex spectra with many overlapped signals. The usefulness of this method in the structural elucidation of natural substances is demonstrated using strychnine and digitoxin as examples.
authors.affiliation: Plant Science Center, Riken (Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. juzawa@postman.riken.go.jp
authors.forename: Jun
authors.initials: J
authors.lastname: Uzawa
authors.forename: Shigeo
authors.initials: S
authors.lastname: Yoshida
mesh_terms: D004074:Digitoxin / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D015394:Molecular Structure; D009930:Organic Chemicals / Q000737:chemistry*; D013331:Strychnine / Q000737:chemistry
chemical_list: D009930:Organic Chemicals; D004074:Digitoxin; D013331:Strychnine