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Methine carbon INEPT method

Carbon 13 NMR spectra of low density-polyethylene and ethylene propylene copolymer were observed at a freqeuncy of 125.77 MHz. The INEPT method was applied to identify methyl, methylene, and methine carbons. [Pg.119]

Four yegs ago, Morris and Freeman(31) reported a method for enhancing C NMR signals by using polarization transfer from protons(INEPT). Subsequently, Doddrell and Pegg(32) showed that this INEPT method could be used to identify methine, methylene, and methyl groups of a complex molecule v en combined with appropriate delay time (A) prior to data acquisition and broad- d decou ing. If A=1/2J (J is the coupling constant between C and ), only methine carbon resonances appear in the... [Pg.119]

See other pages where Methine carbon INEPT method is mentioned: [Pg.404]    [Pg.3445]    [Pg.119]    [Pg.120]    [Pg.662]    [Pg.120]    [Pg.294]    [Pg.275]   


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