CHEM 344 Chapter Notes - Chapter 2: Silane, Radio Wave, Methyl Group
20 Sep 2016
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How nmr works: a strong magnetic field is applied to randomly aligned nuclei, forcing them to align either parallel or antiparallel with the field. The nuclei being detected will align on two different energy levels: a pulse of radio frequency light is shot at the molecule. At the top of the graph, helps you determine what to expect from the peaks. Uses a deuterated (solvent with the majority of hydrogens as deuterium) solvent -- although it won"t be perfect and a small artifact of that imperfection will show up on the graph: signal integrations. A curved line through the spikes on the graph, listing a number close to the number of detected nuclei that exhibit that chemical shift: chemical shift. A number above the peak, in parts per million (ppm) Set relative in this class to tetramethylsilane (tms), which is used to set the.
