The broad signal at 3300cm-1 is of hydroxyl (OH) functional group stretching frequency.
The sharp signal at 1500cm- is of aromatic C=C stretching frequency.
There is no signal near 1700Cm-1, it meaans no carbonyl functional group is present.
Hence, the purposes structure is phenol.
corelate the spectrum and draw the structure it represents 1007 (1) % de transmitancia 1000 1500...
HEM 3102 Exp 3.5B Spectrum C 4000 1500 1000 650 Provide name and structure 30516 75 1287 24cm1 65 3500 3000 2500 2000 1500 1000 cm-1 650
HEM 3102 Exp 3.5B Spectrum C 4000 1500 1000 650 Provide name and structure 30516 75 1287 24cm1 65 3500 3000 2500 2000 1500 1000 cm-1 650
Which structure below will match the IR spectrum? 100 mm 500 1000 1500 2000 3000 4000 wavenumber cm-1 d С b The 'H NMR will match which structure below? PPM -OH CH; OCH2CH3 HC OCH3 e d b a By considering lone pairs and resonance structures, which of the following structures does NOT have tetrahedral geometry( sp3 hybridization) around any of its central atoms? A. B. X C. D. NH2 ОА OB
Match up the structures with the Spectrums, (A-E), explain why
you matched the structure with the spectrum (ex: a large broad
signal at approximately 3500cm^-1 so you have chosen an alcohol),
and give the name of the IUPAC name of the compound.
Structures: OH OH Spectrum A: IOD TPANSTANCIU มา 4000 9000 2000 1500 1000 HAVE NUMBER Spectrum B: 1000 3000 2000 Wavenumber (cm-1) Spectrum C: 3000 1000 2000 Wavenumber (cm-1) Spectrum D: 3000 2000 Wavenumber (cm-1) 1000 Spectrum E:...
Question 54 Which structure is most consistent with the following IR spectrum? 100 m TRANSMITTANCE [%] 50 500 1000 4000 3000 2000 1500 WAVENUMBER (-1) OH do de in 11 III IV
Draw the correct structure for C8H8 by analyzing the spectra
below. Label the spectrum and explain your answer.
100 95 90 85 80 75 70 65 60 55 50 45 4000 3500 3000 2500 1500 1000 2000 500 Wavenumbers (cm-1) %Transmittance 2973.42 2940.13 2826.86 1469.79 1386.26 1363.07 1262.57 1020.89 850.92 724.39 459.11 4.5 3.5 3.0 4.0 2.5 2.0 0.5 ppm 1.5 1.0 00 3.04
Assign the peak for both of the IR spectrum below and identify
what compound is this and draw the structure of the compound.
100 90 80 70 W 60 50 % Transmission 40 30 - 923 1677 1285 20 - 702 10 0 4000 3500 3000 2500 2000 1500 1000 Wavenumber (cm) 100 80 m % Transmission 1660 1209 1438 886 757 0 4000 3500 3000 2500 1500 1000 2000 Wavenumber (cm*')
Which structure is most consistent with the following IR spectrum? 100 TRANSMITTANCE [%] 50 4000 500 3000 1000 2000 1500 WAVENUMBER (-1) OH ОН II
Draw the correct structure for C7H6O2 by analyzing the spectra
below. Label the spectrum and explain your answer.
CORRECTION! Formula is C4H6O4
Sample #2 CyHeOy 94 92 90 88 82 76 70 68 4000 3500 3000 2500 1000 2000 1500 500 Wavenumbers (cm-1) 8 8 2868.76 2530.76 1671.92 1408.84 06 20 1175.52 1270.88 1194.56 997.33 885.17 800.78 636.57 577 42 545.36 504.07 431:38 416.49 401.13 Sampe 4.5 4.0 3.5 3.0 2.5 2.0 Ppm 0.53 00'
Absorbance/% 100+ 4000 3000 2500 1000 500 2000 1500 Wavenumbers /cm-1 Absorbance/ 100+ 4000 3000 2500 1000 2000 1500 Wavenumbers icm? Absorbance / % 100+ 4000 3000 2500 1500 1000 2000 Wavenumbers/cm Absorbance/% 100+ 4000 3000 2500 1000 500 2000 1500 Warenumbers /cm1 2. Match the following with their possible spectra above (A - D). More than one (or none) of these compounds might be a possible match for a single spectra. Not all of the named compounds necessarily matches...
Fill the table using the IR above!
100 D + 4000 2000 1500 HAVENUMBERI- Spectrum Region Frequency (cm) Peak Shape (sharp, broad) Peak Intensity (strong, med. or weak) Functional Group Indicated (name and abbrev. structure) >3000 cm Between 3000- 2000 cm Between 2000- 1400 cm Between1400-500 cm