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X-ray frequency range:
Approximately 10^18 to 10^22 Hz.
UV range
200-400 nm
Visible light range
400-700 nm
IR range
2 um to 50 um
Single bond wavenumber range
400-1600
Double bond wavenumber range
1600-1850
Triple bond wavenumber range
2100-2300
Bonds to H range
2700-4000
M-15
Loss of a methyl radical
M-29
Loss of an ethyl radical
M-43
Loss of a propyl radical
M-57
Loss of a butyl radical
M-18
Loss of water (from an alcohol)
M-x
McLafferty rearrangement (ketone or aldehyde) x = even number
1H relative atomic mass
1.0078
12C relative atomic mass
12.0000
14N relative atomic mass
14.0031
16O relative atomic mass
15.9949
35Cl relative atomic mass
34.9689
79Br relative atomic mass
78.9183
Degree of unsaturation formula
HDI = (2+2C + N - X - H)/2