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14 Cards in this Set
- Front
- Back
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zone 1
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broad OH, C-H end of alkyne, broad N-H (amide, amine)
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zone 2
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aldehyde (2700-2500), carboxylic OH = broad, aryl/vinyl carbon, sp3 carbon (alkane)
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zone 3
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triple bonds- alkyne, nitrile
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zone 4
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carbonyl group, aromatic overtones
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zone 5
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benzene ring, alkene
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purpose of mass spec
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determine molecular mass by manipulating flight path of molecular ion (or fragments) in magnetic field
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what happens in IR
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heat in IR casues vibration between a bond
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purpose of proton NMR
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energy required to cause nuclear spin flip fxn of magnetic environment experienced by the nucleus
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base peak
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peak corresponding to most abundant ion in mass spectrum
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chemical shift
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shift in parts per million of an NMR signal from signal of a reference signal
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downfield
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chemical shift of a nucleus that is deshielded
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spin spin coupling
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magnetic interaction of nuclear spins that results in two or more energy states for spin system
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splitting
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pattern that appears on NMR spectrum as result of spin spin coupling
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upfield
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chem shift of nucleus that is shielded
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