All Related Questions of Chemical Shift

Q: For each of the following compounds, identify the expected chemical shift

For each of the following compounds, identify the expected chemical shift for each type of proton:

Q: Below are NMR spectra of several compounds. Identify whether these compounds

Below are NMR spectra of several compounds. Identify whether these compounds are likely to contain ethyl, isopropyl, and/or tert-butyl groups:

Q: Propose a structure that is consistent with each of the following 1H

Propose a structure that is consistent with each of the following 1H NMR spectra. In each case, the molecular formula is provided.

Q: Determine the structure of a compound with the molecular formula C5H10O that

Determine the structure of a compound with the molecular formula C5H10O that exhibits the following broadband-decoupled and DEPT-135 spectra. The DEPT-90 spectrum has no signals.

Q: A compound with the molecular formula C7H14O exhibits the following 13C NMR

A compound with the molecular formula C7H14O exhibits the following 13C NMR spectra: Several structures are consistent with these spectra. To determine which structure is correct, a 1H NMR spectrum w...

Q: Deduce the structure of a compound with the molecular formula C9H12 that

Deduce the structure of a compound with the molecular formula C9H12 that produces the following 1H NMR spectrum:

Q: Deduce the structure of a compound with the molecular formula C9H10O2 that

Deduce the structure of a compound with the molecular formula C9H10O2 that produces the following 1H NMR spectrum and 13C NMR spectrum:

Q: Determine the structure of an alcohol with the molecular formula C6H14O that

Determine the structure of an alcohol with the molecular formula C6H14O that exhibits the following DEPT-135 spectrum:

Q: Deduce the structure of a compound with the molecular formula C6H14O2 that

Deduce the structure of a compound with the molecular formula C6H14O2 that exhibits the following IR, 1H NMR, and 13C NMR spectra:

Q: Deduce the structure of a compound with the molecular formula C8H10O that

Deduce the structure of a compound with the molecular formula C8H10O that exhibits the following IR, 1H NMR, and 13C NMR spectra:

Q: Deduce the structure of a compound with the molecular formula C5H10O that

Deduce the structure of a compound with the molecular formula C5H10O that exhibits the following IR, 1H NMR, and 13C NMR spectra. Data from the mass spectrum are also provided.

Q: Deduce the structure of a compound with the molecular formula C8H14O3 that

Deduce the structure of a compound with the molecular formula C8H14O3 that exhibits the following IR, 1H NMR, and 13C NMR spectra:

Q: Deduce the structure of a compound with the molecular formula C6H10O4 that

Deduce the structure of a compound with the molecular formula C6H10O4 that exhibits the following IR, 1H NMR, and 13C NMR spectra:

Q: Deduce the structure of a compound with the molecular formula C8H14O4 that

Deduce the structure of a compound with the molecular formula C8H14O4 that exhibits the following IR, 1H NMR, and 13C NMR spectra:

Q: Deduce the structure of a compound with the molecular formula C12H8Br2 that

Deduce the structure of a compound with the molecular formula C12H8Br2 that exhibits the following 1H NMR and 13C NMR spectra:

Q: An unknown compound exhibits the following IR, 1H NMR, and

An unknown compound exhibits the following IR, 1H NMR, and 13C NMR spectra. In a mass spectrum of this compound, the (M)+• peak appears at m/z = 104, and the (M+1)+•...

Q: 75. Which compound gives the following 1H NMR spectrum?

75. Which compound gives the following 1H NMR spectrum? 76. A compound with the molecular formula C4H8O2 gives a 1H NMR spectrum with the following three signals. What is the structure of the compou...

Q: Brevianamide S, a potent antitubercular natural product, was recently isolated

Brevianamide S, a potent antitubercular natural product, was recently isolated from a marine sediment collected off the coast of China. Predict the chemical shift and determine the multiplicity of eac...

Q: Ethyl 3-ethoxypropanoate is a solvent used in the preparation of

Ethyl 3-ethoxypropanoate is a solvent used in the preparation of polymers, and it has been detected in the gaseous emissions at some industrial sites. One study showed that it can be decomposed by sev...

Q: Propose a structure for a compound with the molecular formula C10H14O that

Propose a structure for a compound with the molecular formula C10H14O that exhibits the following 1 H NMR spectrum:

Q: Propose a structure for a compound with the molecular formula C3H8O that

Propose a structure for a compound with the molecular formula C3H8O that exhibits the following 1H NMR and 13C NMR spectra:

Q: Propose two possible structures for a compound with the molecular formula C5H12O

Propose two possible structures for a compound with the molecular formula C5H12O that exhibits the following 13C NMR and IR spectra:

Q: Propose a structure for a compound with the molecular formula C8H10O that

Propose a structure for a compound with the molecular formula C8H10O that exhibits the following 1H NMR spectrum:

Q: Propose a structure for an ether with the molecular formula C7H8O that

Propose a structure for an ether with the molecular formula C7H8O that exhibits the following 13C NMR spectrum:

Q: Propose a structure for a compound with the molecular formula C8H18O that

Propose a structure for a compound with the molecular formula C8H18O that exhibits the following 1H NMR and 13C NMR spectra:

Q: Propose a structure for a compound with the molecular formula C4H8O that

Propose a structure for a compound with the molecular formula C4H8O that exhibits the following 13C NMR and FTIR spectra:

Q: Propose a structure for a compound with the molecular formula C4H10O that

Propose a structure for a compound with the molecular formula C4H10O that exhibits the following 1H NMR spectrum:

Q: A compound with the molecular formula C11H14O2 exhibits the following spectra (

A compound with the molecular formula C11H14O2 exhibits the following spectra (1H NMR, 13C NMR, and IR). Identify the structure of this compound.

Q: A compound with the molecular formula C9H10O exhibits the following spectra (

A compound with the molecular formula C9H10O exhibits the following spectra (1H NMR, 13C NMR, and IR). Identify the structure of this compound.

Q: A compound with the molecular formula C9H10O exhibits a strong signal at

A compound with the molecular formula C9H10O exhibits a strong signal at 1687 cm−1 in its IR spectrum. The 1H and 13C NMR spectra for this compound are shown below. Identify the stru...

Q: A compound with the molecular formula C13H10O produces a strong signal at

A compound with the molecular formula C13H10O produces a strong signal at 1660 cm−1 in its IR spectrum. The 13C NMR spectrum for this compound is shown below. Identify the structure...

Q: A compound with the molecular formula C8H8O3 exhibits the following IR,

A compound with the molecular formula C8H8O3 exhibits the following IR, 1H NMR, and 13C NMR spectra. Deduce the structure of this compound.

Q: Draw the structure of the compound with the molecular formula C6H15N that

Draw the structure of the compound with the molecular formula C6H15N that exhibits the following 1 H NMR and 13C NMR spectra:

Q: Draw the structure of the compound with the molecular formula C8H11N that

Draw the structure of the compound with the molecular formula C8H11N that exhibits the following 1 H NMR and 13C NMR spectra: