Category Credit cards

Ir peak assignments table

Posted on by RICARDA O.

The soon after desk provides infrared spectroscopy absorptions by frequency regions.

4000-3000 cm-1
3700-3584mediumsharpO-Hstretchingalcoholfree
3550-3200strongbroadO-Hstretchingalcoholintermolecular bonded
3500
3400
medium N-Hstretchingprimary amine 
3400-3300
3330-3250
medium N-Hstretchingaliphatic chief amine 
3350-3310medium N-Hstretchingsecondary amine 
3300-2500strongbroadO-Hstretchingcarboxylic acidusually centered with 3000 cm-1
3200-2700weakbroadO-Hstretchingalcoholintramolecular bonded
3000-2800strongbroadN-Hstretchingamine salt 
       
3000-2500 cm-1
3333-3267strongsharpC-Hstretchingalkyne 
3100-3000medium C-Hstretchingalkene 
3000-2840medium C-Hstretchingalkane 
2830-2695medium C-Hstretchingaldehydedoublet
2600-2550weak S-Hstretchingthiol 
       
2400-2000 cm-1
2349strong O=C=Ostretchingcarbon dioxide 
2275-2250strongbroadN=C=Ostretchingisocyanate 
2260-2222weak CΞNstretchingnitrile 
2260-2190weak CΞCstretchingalkynedisubstituted
2175-2140strong S-CΞNstretchingthiocyanate 
2160-2120strong N=N=Nstretchingazide 
2150  C=C=Ostretchingketene 
2145-2120strong N=C=Nstretchingcarbodiimide 
2140-2100weak CΞCstretchingalkynemonosubstituted
2140-1990strong N=C=Sstretchingisothiocyanate 
2000-1900medium C=C=Cstretchingallene 
2000  C=C=Nstretchingketenimine 
       
2000-1650 cm-1
2000-1650weak C-Hbendingaromatic compoundovertone
       
1870-1540 cm-1
1818
1750
strong C=Ostretchinganhydride 
1815-1785strong C=Ostretchingacid halide 
1800-1770strong C=Ostretchingconjugated chemical halide 
1775
1720
strong C=Ostretchingconjugated anhydride 
1770-1780strong C=Ostretchingvinyl Or phenyl ester 
1760strong C=Ostretchingcarboxylic acidmonomer
1750-1735strong C=Ostretchingesters6-membered lactone
1750-1735strong C=Ostretchingδ-lactoneγ: 1770
1745strong C=Ostretchingcyclopentanone 
1740-1720strong C=Ostretchingaldehyde 
1730-1715strong C=Ostretchingα,β-unsaturated esteror formates
1725-1705strong C=Ostretchingaliphatic ketoneor cyclohexanone and cyclopentenone
1720-1706strong C=Ostretchingcarboxylic aciddimer
1710-1680strong C=Ostretchingconjugated aciddimer
1710-1685strong C=Ostretchingconjugated aldehyde 
1690strong C=Ostretchingprimary amidefree (associated: 1650)
1690-1640medium C=Nstretchingimine Or oxime 
1685-1666strong C=Ostretchingconjugated ketone 
1680strong C=Ostretchingsecondary amidefree (associated: 1640)
1680strong C=Ostretchingtertiary amidefree (associated: 1630)
1650strong C=Ostretchingδ-lactamγ: 1750-1700 β: 1760-1730
       
1670-1600 cm-1
1678-1668weak C=Cstretchingalkenedisubstituted (trans)
1675-1665weak C=Cstretchingalkenetrisubstituted
1675-1665weak C=Cstretchingalkenetetrasubstituted
1662-1626medium C=Cstretchingalkenedisubstituted (cis)
1658-1648medium C=Cstretchingalkenevinylidene
1650-1600medium C=Cstretchingconjugated alkene 
1650-1580medium N-Hbendingamine 
1650-1566medium C=Cstretchingcyclic alkene 
1648-1638strong C=Cstretchingalkenemonosubstituted
1620-1610strong C=Cstretchingα,β-unsaturated ketone 
       
1600-1300 cm-1
1550-1500
1372-1290
strong N-Ostretchingnitro compound 
1465medium C-Hbendingalkanemethylene group
1450
1375
medium C-Hbendingalkanemethyl group
1390-1380medium C-Hbendingaldehyde 
1385-1380
1370-1365
medium C-Hbendingalkanegem dimethyl
       
1400-1000 cm-1
1440-1395medium O-Hbendingcarboxylic acid 
1420-1330medium O-Hbendingalcohol 
1415-1380
1200-1185
strong S=Ostretchingsulfate 
1410-1380
1204-1177
strong S=Ostretchingsulfonyl chloride 
1400-1000strong C-Fstretchingfluoro compound 
1390-1310medium O-Hbendingphenol 
1372-1335
1195-1168
strong S=Ostretchingsulfonate 
1370-1335
1170-1155
strong S=Ostretchingsulfonamide 
1350-1342
1165-1150
strong S=Ostretchingsulfonic acidanhydrous
hydrate: 1230-1120
1350-1300
1160-1120
strong S=Ostretchingsulfone 
1342-1266strong C-Nstretchingaromatic amine 
1310-1250strong C-Ostretchingaromatic ester 
1275-1200
1075-1020
strong C-Ostretchingalkyl aryl ether 
1250-1020medium C-Nstretchingamine 
1225-1200
1075-1020
strong C-Ostretchingvinyl ether 
1210-1163strong C-Ostretchingester 
1205-1124strong C-Ostretchingtertiary alcohol 
1150-1085strong C-Ostretchingaliphatic ether 
1124-1087strong C-Ostretchingsecondary alcohol 
1085-1050strong C-Ostretchingprimary alcohol 
1070-1030strong S=Ostretchingsulfoxide 
1050-1040strongbroadCO-O-COstretchinganhydride 
       
1000-650 cm-1
995-985
915-905
strong C=Cbendingalkenemonosubstituted
980-960strong C=Cbendingalkenedisubstituted (trans)
895-885strong C=Cbendingalkenevinylidene
850-550strong C-Clstretchinghalo compound 
840-790medium C=Cbendingalkenetrisubstituted
730-665strong C=Cbendingalkenedisubstituted (cis)
690-515strong C-Brstretchinghalo compound 
600-500strong C-Istretchinghalo compound 
       
900-700 cm-1
880 ± enterochromaffine zellen dissertation abstracts 810 ± 20strong C-Hbending1,2,4-trisubstituted 
880 ± 20
780 ± 20
(700 ± 20)
strong C-Hbending1,3-disubstituted 
810 ± 20strong C-Hbending1,4-disubstituted or
1,2,3,4-tetrasubstituted
 
780 ± 20
(700 ± 20)
strong C-Hbending1,2,3-trisubstituted 
755 ± 20strong C-Hbending1,2-disubstituted 
750 ± 20
800 ± 20
strong C-Hbendingmonosubstituted
benzene derivative
 

ir high tasks table

0 thoughts on “Ir peak assignments table

Add comments

Your e-mail will not be published. Required fields *