Q2 Match each proton in the following molecule to its signal Ha, OCH3 7 5 2...
Match the signal to the corresponding vinylic proton 2 13 He 7 Hb Ha 4 PPI 5 6 о 1 2 3 Hс Hb На 5 PPI 6 o 1=A, 2=B, 3=C 1=A, 2=C, 3=B 1=С, 22А, 3=B (р 1=B, 22А, 3=C 1=С, 2=B, 3=A 1=B, 2=C, 3=A
1. [2 pts] Identify which signal on the proton NMR is produced by which proton or set of protons in the molecule shown. Assign protons a-e to the signals. 3 2 PPM 0 2. [2.5 pts] Evaluate the following proton NMR and determine which compound produced the NMR. Circle the answer and indicate one reason why each of the other answers must be wrong. Be specific in your reasons PPM Br Br Br Br Br CH3
Page - 8 - of 9 B Solvent • ppm 8A) MATCH the proton (1H) NMR spectrum above to the CORRECT molecule (1, 2, 3, or 4). 8B) In the table below, ASSIGN each signal in the spectrum to the corresponding hydrogen atom(s) in the compounds. Use this format example: 3.0 ppm ЗН singlet (fictitious) -CH SIGNAL ppm (x scale) Integration Splitting Assignment A B с D E
5. 'H Matching Match each proton spectrum with the molecule that produced it. Only six molecules will be matched. For each molecule, indicate which structural feature allowed you to identify it, and circle the corresponding peak on the N spectrum. OH O. OH OH benzoic acid phenol anisole o-cresol OH toluene benzyl alcohol styrene p-cresol
Match the hydrogens in the structure below to each signal in the NMR spectrum H1 H5 H4 tra -H3 6H E 6H, singlet B 3H, singlet D 2H, singlet с 1H, septet F. 6H, doublet A 4H, mult 8 7 6 5 3 2 1 0 4 PPM
Identify each signal with the corresponding H atoms in the
molecule (for example, “signal 4 corresponds to the H’s in the
CH2group between aromatic ring and the C=O group”). Why
is the signal at chemical shift 0.0 ppm not labeled?
7. Insert the 'H NMR spectrum of the product molecule from the BL lab book. Identify each signal with the corresponding H atoms in the molecule (for example, "signal 4 corresponds to the H's in the CH2 group between aromatic...
1) Provide the structure of the molecule. Proton NMR spectrum is shown below. MF C.H.00. 2.22 1.13 1.04 6.00 an 20 1.0 ppm 2) Provide the structure of the molecule. Proton NMR spectrum is shown below. MF C,H,O Integral 12 1 2 3 11 10 9 8 7 6 5 4 3 2 ppm
3) Provide the structure of the molecule. Proton NMR spectrum is shown below. MF: CH100 PPN 4) Provide the structure of the molecule. Proton NMR spectrum is shown below. MF: C10H120 Integration 2 2 2 3 3 11 10 9 8 7 6 5 Ppm 4 3 2 1 0
Please Give the multiplicity of each signal. Mark on the molecule
where R and S are located.
8 0.88 I0 2.02 0.99 2.332.33 40.7 62 1.55 1.82:1 57 1.80:1.55 89 33.7 5 2 0.86 1H NMR 13C NN Signal PPM Multi 1 2.02 36 2 180 1 55 1.89 0.86 1.82 1.57 2.33:2.33 1.62 Quarte 36 $3 4 18 24 6 Triplet 24 7 0.88 155 12 9 32 10 0.99 Triplet
Each spectrum corresponds to one of the IR molecules. Match each
spectrum to the correct molecule.
Spectrum 1460 * TRANSPETTANCE 1120 TLCT D 0821 0862 esti TTTTT 1sbe llwid sample between all plate HAVENUMBERS 99. Copyright 1994 Spectrum D NULLDISHA 1637 LCE TTTTTTTT capillary file between salt plates AVGUBERS Corrie 1993 Spectrum 6 19TINOS Cevich 1994 Spectrum F TSMETTANCE 37 BAVENUMERI Spectrum G 100 my TRANSMETTINCERI 2000 1500 KRYENUMERII Spectrum H 0.8 TRANSMITTANCE 1000 3000 2000 Wavenumber (cm-1) Spectrum 3000...