4-OCTYNE
Formula: C8H14

C8H14
8 - 14/2 + 1 = 2 degrees of unsaturation.
Look for any 2 of pi bonds or aliphatic rings.
8 - 14/2 + 1 = 2 degrees of unsaturation.
Look for any 2 of pi bonds or aliphatic rings.
The bands at 3000-2850 indicate C-H alkane stretches. There really
aren't many other bands in the spectrum to indicate functional groups.
The compound is an alkyne; we would expect to see a carbon-carbon triple
bond stretch at 2260-2100, however, this is a weak band at best and
often does not show up on IR.
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