Select the correct structural fragments for the NMR of the unknown compound with the formula C5H10O.b3.02.8Cd2.6Peak Chemical Shift (ppm)a2.41b2.131.610.92-CH2(a)-CH2(c)-CH2(a)-CH2(c)-CH3(d)-CH2(c)-CH3(d)-CH3(b)-CH2(c)-CH3(b)a2Hil2.43H2.22.0Integration Multiplicity2H3H2H3H1.82Hсuillu1.61.4Structural Fragments1.2d3H1.0U0.80.6 PPM

1HNMR spectroscopy is used to determine the arrangement of Hydrogen atoms in the molecule.

Select the correct structural fragments for the NMR of the unknown compound with the formula C5H100. b 3.0 Peak a b 000 00 с d 2.8 2.6 Chemical Shift (ppm) 2.41 2.13 1.61 0.92 -CH2(a)-CH2(c) -CH2(a)-CH2(c)-CH3(d) -CH2(c)-CH3(d) -CH3(b) -CH2(c)-CH3(b) a 2H 2.4 3H 2.2 2.0 Integration Multiplicity 2H 3H 2H 3H 1.8 с 2H 1. illi 1.6 1.4 Structural Fragments 1.2 3H 1.0 0.8 0.6 PPM

Select the correct structural fragments for the NMR of the unknown compound with the formula C5H100. b 3.0 Peak a b 000 00 с d 2.8 2.6 Chemical Shift (ppm) 2.41 2.13 1.61 0.92 -CH2(a)-CH2(c) -CH2(a)-CH2(c)-CH3(d) -CH2(c)-CH3(d) -CH3(b) -CH2(c)-CH3(b) a 2H 2.4 3H 2.2 2.0 Integration Multiplicity 2H 3H 2H 3H 1.8 с 2H 1. illi 1.6 1.4 Structural Fragments 1.2 3H 1.0 0.8 0.6 PPM

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL4: Proton (1h) Nmr Spectroscopy

Section: Chapter Questions

Problem 9E

See similar textbooks

Similar questions

The carbon NMR chemical shifts of diethylmethylamine, piperidine, propan-1-ol, andpropanal follow. Determine which spectrum corresponds to each structure, and showwhich carbon atom(s) are responsible for each absorption.10.0, 25.8, 63.6
Predict the 13C-NMR shift of labeled carbon number (3) b 1276 b. 1376 c1279 d. 122.1 e 1292
If the molecule giving the ¹H NMR spectrum shown below has a total of 10 protons, how many protons are represented by peak II? 4 PPM
NMR lr 1-nilrobensaldehyde Chemical Splirting ahift (A) сно (A) 10.152 SINCILET (D) H, H(B) (B) 8.727 SINGLET (C) 8.509 SINCGLET (E) H (D) 8.369 SINGLET (E) 7811 SINCILET what are the chemical shifts? how do I add the 1H 2H? ARE THEY ALL SINGLET
Analyze the BC NMR spectrum for the C4H602 compound shown below and determine a structure. Assign all the carbons. Shift (ppm) Mult. 173.7 136.1 128.0 T 17.6 Q
2. Three compounds with the molecular formula C4H3O2 have the following structures: CH,COCH,CH, HCOCH,CH,CH3 CH,OCCH,CH3 (1) (2) (3) Match each 'H NMR with the correct compound and assign all signals to their corresponding protons. Compound A 28 C ppm Chenucal Saifi (8 ) 3H 2 o ppm Clhemicat Shift (5) 3H Cimpmind C SH 7. D. Ppm Chemical Shifh 18)
4. Deduce the structure of a compound with the molecular formular C8H10O that exhibits the following ¹H NMR and ¹³℃ NMR spectra. (6 pts) Proton NMR 22 7 Carbon NMR There are two. 160 unresolved lines at 130 ppm 140 120 5 Chemical Shift (ppm) 100 80 60 Chemical Shift (ppm) 40 3 20 2V 0
7 Example 6 An unknown compound, insoluble in water and soluble in 10% aqueous HCl, has the molecular formula C6H8N₂ and exhibits the ¹H NMR spectrum in Figure 7.32. What is its structure? 6 T T 5 T 4 3 Chemical shift (ppm) FIGURE 7.32 2 1 tto 0
Draw the structural formulas of the following compounds and indicate the number of NMR signals that would be expected for each compound. (a) methyl iodide (b) 2,4-dimethylpentane (c) cyclopentane (d) propylene (propene)
Which compound is correct for the given NMR spectrum? |(3) (2) (2) 2 1 PPM CN 1) 2) 3) Structure 1 O Structure 2 Structure 3
Using the 'H NMR chemical shift table, predict the proton chemical shifts range of the following molecule. (c) (c) H (a) (b) (b) (a) H;C-CH,-O 0–CH2-CH3 (a) CH, bonded to C? (b) CH, bonded to O? (c) H bonded to C=C?
The 'H NMR shown below belongs to a compound with the formula C4H9B.. Give its structure and assign the chemical shifts. 6 32 PPM 2 3.4 12 1.1 10 PPM 8 7 4 3 8 (ppm) frequency O 2011 Pearson Education, Inc.