preface to fifteenth edition

SPECTROSCOPY 7.73
TABLE 7.30
Raman Frequencies of Single Bonds to Hydrogen and Carbon (Continued)
Group Band, cm 1 Remarks
Saturated C9H and C9C (continued)
CH 3
CH 3
C"C
CH 3
H
1385–1375
522–488 (w)
CH 3
CH 3
1392–1386
C"C
690–678 (m–s)
510–485 (m)
CH 3
CH 3 424–388 (w)
C9C9C
O
C9C9
O
9CH 2 9CO9
1170–1100 (w–m)
600–580 (m–s)
1120–1090 (m–vs) Tertiary or quaternary carbon adjacent
to carbonyl group lowers
the frequency 300 cm 1 .
600–510 (w–m)
1420–1410 (s)
9CHO
2850–2810 (m)
2720–2695 (vs)
Unsaturated C9H
Often appears as a shoulder
9C#C9H 3340–3270 (w–m) Alkyl substituents at higher frequencies;
unsaturated or aryl
substituents at lower frequencies
C"C
H
3040–2995 (m)
C"C
H
H
3095–3050 (m)
2990–2983 (s)
Asymmetric "CH 2 stretch
Symmetric "CH 2 stretch
H
H
C"C
R
H
1419–1415 (m)
1309–1288 (m)
Plus "CH and "CH stretching
bands
H
H
C"C
R 1
R 2
1413–1399 (m)
909–885 (m)
711–684 (w)
Plus "CH 2 stretching bands