Homework Answers
IR :
- 3457 cm-1 : due to -OH stretching
- 1671 cm-1 : due -C=O stretching ( indicates conjugated Carbonyl group)
UV : indicates n to pi* transitions.
Mass Spectra : molecular mass : m/z - 112
using IR and mass spectra possible Molecular Formula : C6H8O2.
13C-NMR :
6 peak at 24 ppm, 25 ppm, 37 ppm (Sp3 C) ; 120 ppm,149 ppm (sp2 C) , 198 ppm (carbonyl). 13C-DEPT indicates 3*-CH2- grops, 1 '-CH-' group and other 'Cs' without Hs.
1H-NMR :
2.0 ppm ( 2H, quintet) ,2.4 ppm ( 2H, quartet) , 2.53 ppm ( 2H, triplet) , 6.14 ppm (1H - alkenic H ). -OH is exchanged with D2O.
Most probable structure :
2-hydroxy-2-cyclohexen-1-one
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BONUS (10 pts) Determine the compound structure based on the spectra below. Annotate spectra to receive...
Label the spectra and propose a structure for the compound. Compound 1 IR Spectrum liquid mi...
Label the spectra and propose a structure for the compound.
Compound 1 IR Spectrum liquid mi 4000 3000 2000 1600 1200 1200 V on Mass Spectrum UV Spectrum 2. max 252 mm (10910622) 2. max 257 nm (log, 2.3) 2 mar 262 nm (10910€ 2.2) 2. max 254 nm (1090€ 2.2) 2.mex 268 nm logo 2.0) solvent thanol M 150 Coto2 40 80 240 120 m 200 280 160 /e 13C NMR Spectrum (100 M-2. CDC, solution ansion DEPT CH...
Label spectra and propose a structure for the compound. Compound 1 IR Spectrum liquid mi 4000 3000 2000 1600 1200 12...
Label spectra and propose a structure for the compound.
Compound 1 IR Spectrum liquid mi 4000 3000 2000 1600 1200 1200 V on Mass Spectrum UV Spectrum 2. max 252 mm (10910622) 2. max 257 nm (log, 2.3) 2 mar 262 nm (10910€ 2.2) 2. max 254 nm (1090€ 2.2) 2.mex 268 nm logo 2.0) solvent thanol M 150 Coto2 40 80 240 120 m 200 280 160 /e 13C NMR Spectrum (100 M-2. CDC, solution ansion DEPT CH chut...
Attached are four spectra for isomer with the MF= c12h14o4. Determine the structure for each molecule...
Attached are four spectra for isomer with the MF=
c12h14o4. Determine the structure for each molecule and draw them
below.
problem 63 IR Spectrum (CCI, solution) 1765 4000 3000 1200 800 2000 V (cm ) Mass Spectrum UV Spectrum & 8 8 g 8 of base 2 mar 269 nm (10910€ 2.7) humax 263 nm (10910 2.7) M -222 (< 1) 169 sahent: methanol 8 C12H1404 240 280 40 80 120 160 200 13C NMR Spectrum (50.0 MHz, COCI, solution)...
Please help me annotate the following spectra. "roblem 4 3396 3334 IR Spectrum 1662 4000 3000...
Please help me annotate the
following spectra.
"roblem 4 3396 3334 IR Spectrum 1662 4000 3000 1200 800 2000 v (cm 1600 ) 120 Mass Spectrum Provide the structure for the problem in the space provided % of base peak M+ 135 Cg H, NO 40 80 120 160 m/e 200 240 280 Students are to ignore marked solvents and water in NMR spectra. 13C NMR Spectrum (100 Mz, DMSO-d6 solution) DEPT CHA CHA CHA solvent proton decoupled 200 160...
Deduce the following structure of the compound given their IR, H1 NMR, 13C NMR spectra, and...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 4 Da- U6)+20 IR Spectrum Oquid fim) 1760 800 1200 2000 1600 3000 4000 v (cm) Mass Spectrum 100 43 No significant UV absorption above 220 nm M146 (1% ) 87 20 CH1004 280 40 80 120 m/e 160 200 240 13C NMR Spectrum (1000 MHz,...
im trying to figure out the structure of the molecule using the H+ NMR Problem R...
im
trying to figure out the structure of the molecule using the H+
NMR
Problem R Spectrum quid fm) C-H Srvetc CN orCEL 2249 4000 3000 2000 1600 1200 800 CyHe NBr CN CSHOB CHzBr No significant Uv V (om) 100 fass o Mass Spectrum 147 147 54 43 CHIBr 79 Br 40t absorption above 220 nm M 147/149 S0ttpe 20 CaH&NBr (204)+2)- 40 80 120 160 m/e 200 240 280 duple 13C NMR Spectrum (100 MHz, CDCI, solution) 2nd...
Use the spectral data provided to determine the structure of the following organic conpounds. IR Spectrum...
Use the spectral data provided to determine the structure of
the following organic conpounds.
IR Spectrum ouid im) 3410 4000 3000 2000 1600 1200 V (om: 800 100 Mass Spectrum 43 80 60 M (15) 71 20 40 120 80 160 200 240 280 m/e 13C NMR Spectrum (50.0 M, COCI, solution) DEPT CHt CH,t CHt solvent proton decoupled 0 8 (ppm) 40 80 120 200 160 'H NMR Spectrum (200 MHz, CDCI, solution) expansion exchanges with Dy0 50 pom...
Deduce the following structure of the compound given their IR, H1 NMR, 13C NMR spectra, and...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 6 1756 IR Spectrum uid Sm) 15820 4000 3000 2000 1600 1200 800 V (cm) 100 55 Mass Spectrum 71 80 70 60 No significant UV M158 (1%) absorption above 220 nm C&H140s 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (50.0 MHz,...
IR Spectra help, question up top Use IR, proton NMR and MS data to deduce the...
IR Spectra help, question up top
Use IR, proton NMR and MS data to deduce the correct structure. Draw the structure and circle it. Indicate on the IR, NMR and MS spectra the information you got from each to deduce the structure. Problem 26 3200 R Spectrum falsar| 200903 Mass Spectrum N 102 UV Spectrum 258 nm (log,o€ 221 1 mar 254 m (109,2.1) shanno CHON 280 180 200 240 WC NMR spectrum M CDC, solution DEPT Out out pro...
) A compound with molecular formula CxH 1403 displays the following spectral data. Propose a structure...
) A compound with molecular formula CxH 1403 displays the following spectral data. Propose a structure for this compound in the box at the bottom of the page. Peak assignments written on the spectra may be worth partial credit. (5 marks) r IR Spectrum liquid film) 1735 1717 4000 3000 1200 800 2000 1600 V (cm) 13C NMR Spectrum (100 MHz, CDCI, solution) DEPT CHI Chit Cht solvent proton decoupled 100 no Sloml proton decoupled 200 160 120 80 40...
Label the spectra and propose a structure for the compound.
Compound 1 IR Spectrum liquid mi 4000 3000 2000 1600 1200 1200 V on Mass Spectrum UV Spectrum 2. max 252 mm (10910622) 2. max 257 nm (log, 2.3) 2 mar 262 nm (10910€ 2.2) 2. max 254 nm (1090€ 2.2) 2.mex 268 nm logo 2.0) solvent thanol M 150 Coto2 40 80 240 120 m 200 280 160 /e 13C NMR Spectrum (100 M-2. CDC, solution ansion DEPT CH...
Label spectra and propose a structure for the compound.
Compound 1 IR Spectrum liquid mi 4000 3000 2000 1600 1200 1200 V on Mass Spectrum UV Spectrum 2. max 252 mm (10910622) 2. max 257 nm (log, 2.3) 2 mar 262 nm (10910€ 2.2) 2. max 254 nm (1090€ 2.2) 2.mex 268 nm logo 2.0) solvent thanol M 150 Coto2 40 80 240 120 m 200 280 160 /e 13C NMR Spectrum (100 M-2. CDC, solution ansion DEPT CH chut...
Attached are four spectra for isomer with the MF=
c12h14o4. Determine the structure for each molecule and draw them
below.
problem 63 IR Spectrum (CCI, solution) 1765 4000 3000 1200 800 2000 V (cm ) Mass Spectrum UV Spectrum & 8 8 g 8 of base 2 mar 269 nm (10910€ 2.7) humax 263 nm (10910 2.7) M -222 (< 1) 169 sahent: methanol 8 C12H1404 240 280 40 80 120 160 200 13C NMR Spectrum (50.0 MHz, COCI, solution)...
Please help me annotate the
following spectra.
"roblem 4 3396 3334 IR Spectrum 1662 4000 3000 1200 800 2000 v (cm 1600 ) 120 Mass Spectrum Provide the structure for the problem in the space provided % of base peak M+ 135 Cg H, NO 40 80 120 160 m/e 200 240 280 Students are to ignore marked solvents and water in NMR spectra. 13C NMR Spectrum (100 Mz, DMSO-d6 solution) DEPT CHA CHA CHA solvent proton decoupled 200 160...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 4 Da- U6)+20 IR Spectrum Oquid fim) 1760 800 1200 2000 1600 3000 4000 v (cm) Mass Spectrum 100 43 No significant UV absorption above 220 nm M146 (1% ) 87 20 CH1004 280 40 80 120 m/e 160 200 240 13C NMR Spectrum (1000 MHz,...
im
trying to figure out the structure of the molecule using the H+
NMR
Problem R Spectrum quid fm) C-H Srvetc CN orCEL 2249 4000 3000 2000 1600 1200 800 CyHe NBr CN CSHOB CHzBr No significant Uv V (om) 100 fass o Mass Spectrum 147 147 54 43 CHIBr 79 Br 40t absorption above 220 nm M 147/149 S0ttpe 20 CaH&NBr (204)+2)- 40 80 120 160 m/e 200 240 280 duple 13C NMR Spectrum (100 MHz, CDCI, solution) 2nd...
Use the spectral data provided to determine the structure of
the following organic conpounds.
IR Spectrum ouid im) 3410 4000 3000 2000 1600 1200 V (om: 800 100 Mass Spectrum 43 80 60 M (15) 71 20 40 120 80 160 200 240 280 m/e 13C NMR Spectrum (50.0 M, COCI, solution) DEPT CHt CH,t CHt solvent proton decoupled 0 8 (ppm) 40 80 120 200 160 'H NMR Spectrum (200 MHz, CDCI, solution) expansion exchanges with Dy0 50 pom...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 6 1756 IR Spectrum uid Sm) 15820 4000 3000 2000 1600 1200 800 V (cm) 100 55 Mass Spectrum 71 80 70 60 No significant UV M158 (1%) absorption above 220 nm C&H140s 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (50.0 MHz,...
IR Spectra help, question up top
Use IR, proton NMR and MS data to deduce the correct structure. Draw the structure and circle it. Indicate on the IR, NMR and MS spectra the information you got from each to deduce the structure. Problem 26 3200 R Spectrum falsar| 200903 Mass Spectrum N 102 UV Spectrum 258 nm (log,o€ 221 1 mar 254 m (109,2.1) shanno CHON 280 180 200 240 WC NMR spectrum M CDC, solution DEPT Out out pro...
) A compound with molecular formula CxH 1403 displays the following spectral data. Propose a structure for this compound in the box at the bottom of the page. Peak assignments written on the spectra may be worth partial credit. (5 marks) r IR Spectrum liquid film) 1735 1717 4000 3000 1200 800 2000 1600 V (cm) 13C NMR Spectrum (100 MHz, CDCI, solution) DEPT CHI Chit Cht solvent proton decoupled 100 no Sloml proton decoupled 200 160 120 80 40...
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