Sample $5$

Determine the functional group$($s$)$ present in the IR spectrum. You may use ir table in assignment $1$

Samnle $1$

Sample $2$

Sample $7$

Sample $8$

Sample $3$

Table of Characteristic IR Absorptions

$\backslash$table$[[$frequency$.c{m}^{-1},$bond,functional group$],[3640-3610(s,sh),$O$-$H stretch, free hydroxyl,alcohols, phenols$],[3500-3200(s,b),$O$-$H stretch, $H-$bonded,alcohols, phenols$],[3400-3250(m),N-H$ stretch,$1^{**},2^{**}$ amines, amides$],[3300-2500(m),$O$-$H stretch,carboxylic acids$],[3330-3270(n,s),-$CEC$-$H:C$-$H stretch,alkynes $($terminal$)],[3100-3000(s),$C$-$H stretch,aromatics$],[3100-3000(m),=C-H$ stretch,alkenes$],[3000-2850(m),$C$-H$ stretch,alkanes$],[2830-2695(m),H-C=O$:$C-H$ stretch,aldehydes$],[2260-2210(v),C-=N$ stretch,nitriles$],[2260-2100(w),-C-=C-$ stretch,alkynes$],[1760-1665(s),C=O$ stretch,carbonyls $($general$)],[1760-1690(s),C=O$ stretch,carboxylic acids$],[1750-1735(s),C=O$ stretch,esters, saturated aliphatic$],[1740-1720(s),CO$ stretch,aldehydes, saturated aliphatic$],[1730-1715(s),C=O$ stretch,a$,-$unsaturated esters$],[1715(s),C=O$ stretch,ketones, saturated aliphatic$],[1710-1665(s),C=O$ stretch,a$,-$unsaturated aldehydes, ketones$],[1680-1640(m),-C-C-$ stretch,alkenes$],[1650-1580(m),N-H$ bend,$1^{**}$ amines$],[1600-1585(m),$C$-$C stretch $($in$-$ring$),$aromatics$],[1550-1475(s),N-O$ asymmetric stretch,nitro compounds$],[1500-1400(m),$C$-$C stretch $($in$-$ring$),$aromatics$],[1470-1450(m),$C$-$H bend,alkanes$],[1370-1350(m),$C$-$H rock,alkanes$],[1360-1290(m),$N$-$O symmetric stretch,nitro compounds$],[1335-1250(s),$C$-$N stretch,aromatic amines$],[1320-1000(s),$C$-$O stretch,alcohols, carboxylic acids, esters, ethers$],[1300-1150(m),$C$-H$ wag $(-C{H}_{2}x),$alkyl halides$],[1250-1020(m),C-N$ stretch,aliphatic amines$],[1000-650(s),=C-H$ bend,alkenes$],[950-910(m),O-H$ bend,carboxylic acids$],[910-665(s,b),N-H$ wag,$1^{**},2^{**}$ amines$],[900-675($s$),$C$-$H ${"}^{-}{?}^{-},$aromatics$],[850-550(m),C-Cl$ stretch,alkyl halides$],[725-720(m),$C$-$H rock,alkanes$],[700-610(b,s),-C-=C-H$:$C-H$ bend,alkynes$],[690-515(m),$C$-Br$ stretch,alkyl halides$]]$