N
X
C
Hal
O
N
S
P Si
Natural
Products
Solvents
C
C
C
C C
C
329
7.8 Alcohols, Ethers, and Related Compounds
329
7.8.4 Peroxides and Hydroperoxides
Typical Ranges (v ~ in cm -1 )
Assignment
Range
Comments
O–O–H st
3450–3200
Of variable intensity
Subranges:
≈3450
Free OOH; H-bonded: ≈30 cm -1 higher than in
corresponding alcohols
In the same range: OH st, NH st, – – – – – CH st, H 2 O
C–O–O st
1200–1000
Strong, ≈20 cm -1 lower than in corresponding
alcohols
In the same range: strong bands for C–O st, C–F st, C–N st,
N–O st, P–O st, C=S st, S=O st, P=O st, Si–O
st, Si–H δ
O–O st
1000–800
Medium or weak, often doublet, assignment
uncertain
Also:
1760–1745
C=O st in peracids
1820–1770
C=O st in diacylperoxides (two bands)
Examples (v ~ in cm -1 )
O
O
1017
880
O
O
1070
1060
943
O
O
O
1100
852
%T
400
800
1200
1600
2000
2800
3600
O–O st
C–O–O st