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preface to fifteenth edition

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7.62 SECTION 7<br />

TABLE 7.26<br />

Absorption Frequencies of Miscellaneous Bands (Continued)<br />

Group Band,cm 1 Remarks<br />

Boron compounds (continued)<br />

BH 4 2310–2195 (s) Two bands<br />

B9N 1550–1330<br />

750–635<br />

Borazines and borazoles<br />

B9O<br />

1390–1310 (s)<br />

1280–1200<br />

BO stretching<br />

Metal orthoborates<br />

B9Cl<br />

B9Br<br />

1090–890 (s) Plus other bands at lower frequencies<br />

for BX 2 and BX 3<br />

B9F 1500–840 (var) Iso<strong>to</strong>pe splitting present<br />

XBF 2<br />

X 2 BF<br />

BF 3 complexes<br />

BF 4<br />

1500–1410 (s)<br />

1300–1200 (s)<br />

1360–1300 (s)<br />

1260–1125 (s)<br />

1030–800 (s)<br />

ca 1030 (vs)<br />

Halogen compounds<br />

Band splitting may be added <strong>to</strong> iso<strong>to</strong>pic<br />

splittings.<br />

C9F<br />

Aliphatic,mono-F<br />

1110–1000 (vs)<br />

780–680 (s)<br />

Aliphatic,di-F 1250–1050 (vs) Two bands<br />

Aliphatic,poly-F 1360–1090 (vs) Number of bands<br />

Aromatic<br />

1270–1100 (m)<br />

680–520 (m–s)<br />

420–375 (var)<br />

340–240 (s)<br />

9CF 3<br />

Aliphatic<br />

Aromatic<br />

C9Cl<br />

Primary alkanes<br />

1350–1120 (vs)<br />

780–680 (s)<br />

680–590 (s)<br />

600–540 (s)<br />

555–505 (s)<br />

1330–1310 (m–s)<br />

600–580 (s)<br />

730–720 (s)<br />

685–680 (s)<br />

660–650 (s)

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