Challenges in Molecular Structure Determination
Springer Science & Business Media, Mar 22, 2012 - Science - 482 pages
Taking a problem-based approach, the authors provide a practice-oriented and systematic introduction to both organic and inorganic structure determination by spectroscopic methods. This includes mass spectrometry, vibrational spectroscopies, UV/VIS spectroscopy and NMR as well as applying combinations of these methods. The authors show how to elucidate chemical structures with a minimal number of spectroscopic techniques. Readers can train their skills by more than 400 problems with varying degree of sophistication. Interactive Powerpoint-Charts are available as Extra Materials to support self-study.
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Chapter 2 Vibrational Spectroscopy
Chapter 3 Electronic Absorption Spectroscopy
Chapter 4 Nuclear Magnetic Resonance Spectroscopy NMR
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13C NMR signal 1H NMR spectrum 70-eV EI mass absorption bands absorption spectrum according to Eq alkenes alkyl amines amu Irel aromatic compounds Aryl base chromophore bending vibrations benzene capillary thin film carbon atoms carboxylic acid CDCl3 chemical shift chromophore cleavage cm-1 Fig cmÀ1 COSY spectrum coupling constant cross peaks DMSO double bond electron absorption electron transitions energy example excited extras.springer.com fragmentation reactions frequency gives rise HMBC spectrum HSQC hydrogen atoms infrared absorption bands infrared spectrum intensity Irelin isomers isotope lmax ¼ m/z ¼ m/z in amu mass spectrum McLafferty rearrangement methine methyl molÀ1 cmÀ1 molecular peak molecule multiplets n0 ¼ nin cm-1 NMR spectroscopy NMR spectrum n0 nuclei orbitals ppm Fig protons Raman lines resonance respective shown in Fig solutions to Challenge spectra spectroscopy spectrum solvent spin system stretching vibration structural moieties structure determination substituents sum formula Table unknown compound vibrational spectroscopy wavelength