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preface to fifteenth edition

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7.74 SECTION 7<br />

TABLE 7.30<br />

Raman Frequencies of Single Bonds <strong>to</strong> Hydrogen and Carbon (Continued)<br />

Group Band, cm 1 Remarks<br />

Unsaturated C9H (continued)<br />

R 1<br />

H<br />

C"C<br />

R 2<br />

H<br />

1270–1251 (m) Plus "CH stretching band<br />

R 1<br />

R 2<br />

H<br />

C"C<br />

1314–1290 (m) Plus "CH stretching band<br />

H<br />

R 1<br />

R 3 1360–1322 (w)<br />

C"C<br />

830–800 (vw)<br />

R 2<br />

H<br />

Plus "CH stretching band<br />

Hydroxy O9H<br />

Free 9OH<br />

Intermolecularly bonded<br />

Aromatic 9OH<br />

9OH<br />

C9C9OH primary<br />

C9C9OH<br />

Secondary<br />

Tertiary<br />

3650–3250 (w)<br />

3400–3300 (w)<br />

ca 3160 (s)<br />

1460–1320 (w)<br />

1276–1205 (w–m)<br />

1260 (w–m)<br />

1070–1050 (m–s)<br />

1030–960 (m–s)<br />

480–430 (w–m)<br />

1135–1120 (m–s)<br />

825–815 (vs)<br />

500–490 (w–m)<br />

1210–1200 (m–s)<br />

755–730 (vs)<br />

360–350 (w–m)<br />

Common <strong>to</strong> all OH substituents<br />

Primary<br />

Secondary<br />

CCO stretching<br />

CCO deformation<br />

9CO9O9H 1305–1270 CO stretching<br />

Amine N9H<br />

Associated<br />

Nonbonded<br />

Salts<br />

N9H and C9N bonds<br />

3400–3250 (s)<br />

3550–3250 (s)<br />

2986–2974<br />

9NH 2 1650–1590 (w–vs) Bending<br />

Primary amines show two bands.<br />

Often obscured by intense CH<br />

stretching bands

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