An unknown compound (A), C10H12O, gave the following proton NMR data: (a) triplet, at 1.0 ppm...

An unknown compound (A), C10H12O, gave the following proton NMR data: (a) triplet, at 1.0 ppm (3H) (b) quartet, at 2.4 ppm (2H) (c) singlet, at 3.7 ppm (2H) (d) multiplet, at 7.2 ppm (5H) Propose a structure for (A).

Expert Solution

queen_honey_blossom answered 2 years ago

1. if a compound has a NMR resonance at 9.5 ppm , and an IR absorbance...

1. if a compound has a NMR resonance at 9.5 ppm , and an IR absorbance at 2550cm^-1, what functional group does the molecule contain? a) ketone b)alkyne c)carboxylic acid d)aldehyde e)amine f) nitrile 2. when examining an NMR spectra you see peaks between 7-8 ppm. Which of the following compounds would assume you were analyzing? a) benzene b) (e) 3-penten-2-one c)2-cyclopropene-1-carboxylic acid d) formylcyclohexane

Identify the compound A (C5H10O) with the proton NMR spectrum shown. Compound A has IR absorptions...

Identify the compound A (C5H10O) with the proton NMR spectrum shown. Compound A has IR absorptions at 3200–3600 cm–1 (strong, broad), 1676 cm–1 (weak), and 965 cm–1, and also has 13C NMR absorptions (attached protons in parentheses) at δ 17.5 (3), δ 23.3 (3), δ 68.8 (1), δ 125.5 (1), and δ 135.5 (1). Compound A may be resolved into enantiomers; draw one molecule of A, omitting wedge/dash bonds.

The proton NMR spectrum for a compound with the formula C7H14O is shown below along with...

The proton NMR spectrum for a compound with the formula C7H14O is shown below along with carbon-13 spectral data in tabular form. (It may be necessary to expand (zoom) some of the 1H signals to view spin-spin splitting details.) This compound exhibits strong infrared absorption at 1717 cm-1, but the 1500-1650 cm-1 region is empty. 13C Data Normal Carbon DEPT-135 DEPT-90 Proton Shift Relative Area 13.8 Positive No peak 0.91 3.2 17.2 Negative No peak 1.09 5.8 18.2 Positive No...

Combustion of 8.732 mg of an unknown organic compound gave 16.432 mg of CO2 and 2.840...

Combustion of 8.732 mg of an unknown organic compound gave 16.432 mg of CO2 and 2.840 mg of H2O. (a) find the wt% of C and H in the substance. (b) Find the smallest reasonable integer mole ration of C:H in the compound.

Deduce the identity of the following compound from the spectral data given. C9H10O2: 13C NMR, δ...

Deduce the identity of the following compound from the spectral data given. C9H10O2: 13C NMR, δ 18.06 (quartet), 45.40 (doublet), 127.32 (doublet), 127.55 (doublet), 128.61 (doublet), 139.70 (singlet), 180.98 (singlet); IR, broad 3500-2800, 1708 cm-1

Part A Table of C-13 NMR data for 1-phenylcyclohexanol using the following headings for each compound...

Part A Table of C-13 NMR data for 1-phenylcyclohexanol using the following headings for each compound (carbon types: CH, CH2, CH3, CH-OH, etc) Chemical Shift (ppm) Carbon Type Part B Table of C-13 NMR data for 1-phenylcyclohexene using the following headings for each compound (carbon types: CH, CH2, CH3, CH-OH, etc): Chemical Shift (ppm) Carbon Type Give detailed explanation of the chemical Shift only and show the carbon labeled.

elemental analysis of an unknown compound was found to give the following data 70.4% carbon, 8.08%...

elemental analysis of an unknown compound was found to give the following data 70.4% carbon, 8.08% hydrogen and 10.12 % of nitrogen. it was found to have a molecular weight of 137.18 Da. determine the empirical formula, molecular formula, and the degree of unsaturation for this compound

The following data were obtained from experiments to find the molecular formula of an unknown compound...

The following data were obtained from experiments to find the molecular formula of an unknown compound which acts as a common local anesthetic. The unknown compound contains only carbon, hydrogen, nitrogen, and oxygen. Complete combustion of a 4.82 g sample of the unknown compound with excess oxygen formed 12.67 g of carbon dioxide and 4.076 g of water. Another sample of the unknown compound with a mass of 1.12 g was found to contain 0.1339 g of nitrogen. The molar...

How many unique 1H NMR signals exist in the spectrum of the following compound?

Independent random samples from two regions in the same area gave the following chemical measurements (ppm)....

Independent random samples from two regions in the same area gave the following chemical measurements (ppm). Assume the population distributions of the chemical are mound-shaped and symmetric for these two regions. Region I: , 1008 852 567 749 764 727 945 657 880 773 1023 1002 Region II: , 1070 750 879 836 711 1070 706 866 608 892 891 965 998 1089 852 443 Let be the population mean for and be the population mean for Find a 90%...

Question