Basic 1H- and 13C-NMR Spectroscopy
Elsevier, 19.1.2005 - 430 sivua
Nuclear Magnetic Resonance (NMR) spectroscopy is a powerful and theoretically complex analytical tool. Basic 1H- and 13C-NMR Spectroscopy provides an introduction to the principles and applications of NMR spectroscopy. Whilst looking at the problems students encounter when using NMR spectroscopy, the author avoids the complicated mathematics that are applied within the field. Providing a rational description of the NMR phenomenon, this book is easy to read and is suitable for the undergraduate and graduate student in chemistry.
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13C NMR AA'BB aldehyde aligned antiparallel aromatic protons benzene C-NMR calculated carbon atoms carbon resonances carbonyl carbon carbonyl group CDCl3 chemical shift chemical shift difference correlation coupled protons coupling constants cross peaks cyclopropane decoupling deshielding determined deuterium dihedral angle double bond doublet doublet lines doublet of doublets effect electron density electronegative energy levels example external magnetic field FID signal geminal geminal coupling constants HETCOR high field increased interaction irradiation Larmor frequency long-range coupling low field lower field magnetic field magnetic quantum magnetization vector methyl group methylenic protons MHz H-NMR spectrum molecule neighboring protons NMR spectra NMR spectroscopy nuclei observed olefinic olefinic proton paramagnetic proton H proton resonances quartet relaxation resonance frequency resonance signal ring current rotating sample shielding shift parameters signal intensity singlet solvent spectrometer spin quantum spin quantum number spin-spin coupling splitting steric structure substituents technique triplet values xy-plane y-axis
Sivu vii - The aim of this book is to provide an introduction to the principles and applications of NMR spectroscopy at a level that is suitable for undergraduate as well as graduate students.
Sivu 31 - When chemical shifts are given in hertz (designated v), the applied frequency must be specified. Chemical shifts can be expressed in dimensionless units, independent of the applied frequency, by dividing v by the applied frequency and multiplying by 106. Thus, a peak at 60 Hz (v 60) from TMS at an applied frequency of 60 MHz would be at 8 1.00 (8 scale).