28.12.2013 Views

preface to fifteenth edition

preface to fifteenth edition

preface to fifteenth edition

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

7.82 SECTION 7<br />

TABLE 7.34<br />

Raman Frequencies of Other Double Bonds (Continued)<br />

GroupBand, cm<br />

1<br />

Remarks<br />

Nitro compounds N"O (continued)<br />

Nitroalkanes (continued)<br />

Tertiary<br />

Nitrogen oxides<br />

<br />

N:O<br />

1543–1533 (m)<br />

1355–1345 (s)<br />

1612–1602 (s)<br />

1252 (m)<br />

1049–1017 (s)<br />

835 (s)<br />

541 (w)<br />

469 (w)<br />

TABLE 7.35<br />

Raman Frequencies of Aromatic Compounds<br />

Abbreviations Used in the Table<br />

m, moderately strong var, of variable strength<br />

m–s, moderate <strong>to</strong> strong vs, very strong<br />

m–vs, moderate <strong>to</strong> very strong w, weak<br />

s, strong w–m, weak <strong>to</strong> moderately strong<br />

s–vs, strong <strong>to</strong> very strong<br />

GroupBand, cm<br />

1<br />

Remarks<br />

Common features<br />

Aromatic compounds 3070–3020 (s) CH stretching<br />

1630–1570 (m–s) C9C stretching<br />

Substitution patterns of the benzene ring<br />

Monosubstituted<br />

1,2-Disubstituted<br />

1180–1170 (w–m)<br />

1035–1015 (s)<br />

1010–990 (vs) Characteristic feature; found also with 1,3- and<br />

1,3,5-substitutions<br />

630–605 (w)<br />

1230–1215 (m)<br />

1060–1020 (s) Characteristic feature<br />

740–715 (m) Lowered 60 cm 1 for halogen substituents

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!