CHMB42H3 Lecture Notes - Lecture 7: Carbon-13 Nuclear Magnetic Resonance, Proton Nuclear Magnetic Resonance, Nuclear Magnetic Resonance
Document Summary
Nuclear magnetic resonance nobel prize in physics - 1952: edward purcell, felix bloch. Mass spec: gives molar mass, gives base peak (most stable fragment) Ir: does not fragment compound shakes the compound, resonance with appropriate energy gives an absorption band, gives the functional groups in a compound. Nmr: has to do with nuclear compound with odd number of atomic weight. Nmr spectroscopy: the absorption of rf radiation in an applied magnetic field to determine the structural features of an organic compound in the case of 1h nmr spectroscopy, it determines the carbon-hydrogen framework. Rf radiation: radiation in the radiofrequency region of the electromagnetic spectrum. When the nuclei relaxes the energy is released as electromagnetic signals the frequency of these signals depends on the energy difference (delta: between alpha and beta spin states. Ft nmr richard ernst: nobel prize in chemistry 1991.
