Carbon-13 NMR Spectroscopy: High-Resolution Methods and by E. Breitmaier

By E. Breitmaier

E. Breitmaier, W. Voelter Carbon-13 NMR Spectroscopy High-Resolution equipment and functions in natural Chemistry and Biochemistry 3rd, thoroughly revised version New ideas and elevated use of pcs have resulted in quick improvement in 13C NMR spectroscopy with improved instrumental sensitivity and enhanced caliber of the spectra. This necessitated a whole revision while the 3rd variation of this winning monograph used to be ready. the hot equipment defined contain these for multiplicity research and two-dimensional homo- or hetero-nuclear shift correlations. As within the moment variation, the authors survey the massive variety of 13C NMR functions to natural molecules and common items in a consultant and systematic instead of an exhaustive approach. New sections approximately coupling constants, organophosphorus and organometallic compounds in addition to man made polymers were further. The scope continues to be restricted to high-resolution equipment and molecular structures.

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Example text

15), achieved by using the phase shifts indicated above; extrapolation of the linear plot cp ( v ) yields qA= 15" and cpe = + 280"; for correction, the signs have to be changed, thus qA= - 15" and cpB = - 280"; (c) real part after phase correction according to (b).

15), achieved by using the phase shifts indicated above; extrapolation of the linear plot cp ( v ) yields qA= 15" and cpe = + 280"; for correction, the signs have to be changed, thus qA= - 15" and cpB = - 280"; (c) real part after phase correction according to (b).

63 MHz PFT 13C{1H} NMR spectrum of methyl acetate (20%) in hexadeuteriobenzene (75%) and tetramethylsilane (5%); 256 accumulated pulse interferograms; (a) real part before phase correction; (b) phase correction according to eq. 15), achieved by using the phase shifts indicated above; extrapolation of the linear plot cp ( v ) yields qA= 15" and cpe = + 280"; for correction, the signs have to be changed, thus qA= - 15" and cpB = - 280"; (c) real part after phase correction according to (b).

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