Spectroscopic Methods in Organic ChemistryIntended as a textbook suitable for a first course in the subject, and as a handbook for practising organic chemists. |
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Page 10
... effect . A shift of an absorption maximum towards longer wavelength . It may be produced by a change of medium , or by the presence of an auxochrome . Auxochrome . A substituent on a chromophore which leads to a red shift . For example ...
... effect . A shift of an absorption maximum towards longer wavelength . It may be produced by a change of medium , or by the presence of an auxochrome . Auxochrome . A substituent on a chromophore which leads to a red shift . For example ...
Page 241
... effect , 10 Beer's law , 2 Benzene : UV , 22 , 23 NMR , 86 as solvent in NMR , 202 Blue shift , 10 , 33 13C NMR , 129–131 , 144 Carbonyl group : IR , 45 , 55-60 NMR , 81 , 86 anisotropy of , 81 , 85 UV , 5 , 6 , 7 , 20 Chemical ...
... effect , 10 Beer's law , 2 Benzene : UV , 22 , 23 NMR , 86 as solvent in NMR , 202 Blue shift , 10 , 33 13C NMR , 129–131 , 144 Carbonyl group : IR , 45 , 55-60 NMR , 81 , 86 anisotropy of , 81 , 85 UV , 5 , 6 , 7 , 20 Chemical ...
Page 243
... effect , 160 , 169-170 peptide sequencing , 193–195 polyfunctional molecules , 177– 180 rearrangement processes , 159 , 172-174 representation of , 152–154 resonance effects , 167-169 sample size , 151–152 shift technique , 189–190 ...
... effect , 160 , 169-170 peptide sequencing , 193–195 polyfunctional molecules , 177– 180 rearrangement processes , 159 , 172-174 representation of , 152–154 resonance effects , 167-169 sample size , 151–152 shift technique , 189–190 ...
Contents
Contents | 13 |
Infrared Spectra | 35 |
Nuclear Magnetic Resonance Spectra 1741 | 147 |
Copyright | |
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Common terms and phrases
absorption acid adjacent aldehyde aliphatic alkyl amide Aryl aß-unsaturated associated benzene ring C-H stretching carbon atom carbonyl group CCl4 centred CH₂ CH₂X CH3 CH3 chemical shift chromophore cm.¹ compounds conjugated coupling constants cyclic deshielding deuterium diene double bond doublet effect electron electronegative energy equation ester ether even-electron example fragmentation functional groups geminal geminal coupling constant give rise Group Band H-bonding hydrocarbon hydrogen bonding Infrared intensity interaction ionization Karplus equation ketones lines lower m/e values magnetic field Mass Spectrometry mass spectrum Metastable peaks methyl group methylene methylene protons molecular ion molecule nm ɛ NMR spectrum nucleus observed occur OCH3 olefinic protons protons attached Raman range reactions Relative abundance 100 sample saturated shows signals singlet solid solution solvent spectra spectrometer Spectroscopy spectrum Fig spin-spin coupling steric stretching frequencies structure substituents Table transition triplet ultraviolet unsaturated usually Varian catalogue vibrations wavelength