Structure & Reactivity

Nuclear Magnetic Resonance Spectroscopy

NMR2D6.  2D NMR Practice

The following problems involve real samples.  Note that you may need to check for peaks due to solvent.  Helpful tables may be found here.

Problem NMR2D6.1.* 

Present an analysis of the following data and propose a structure.

MW: 86 amu.

The full 1H NMR spectrum in CDCl3:

 

Note that the m beside one of the integral values stands for milli (one thousandth).  61.29m = 0.06129 units.

An expansion of the 1H NMR spectrum:

Another expansion:

A 13C NMR spectrum:

COSY spectrum:

HMQC spectrum:

HMBC spectrum:

 

Problem NMR2D6.2.* 

Present an analysis of the following data and propose a structure.

MW: 202 amu

The full 1H NMR spectrum in D2O:

An expansion:

13C NMR:

COSY:

 

Problem NMR2D6.3.*

Present an analysis of the following data and propose a structure.

MW: 164 amu

The full 1H NMR spectrum in CDCl3:

An expansion of the 1H NMR spectrum:

Another expansion:

13C NMR spectrum:

COSY spectrum:

HMQC:

HMBC:

 

Problem NMR2D6.4.*

Present an analysis of the following data and propose a structure.

MW: 131 amu

The full 1H NMR spectrum in D2O:

An expansion:

13C NMR:

COSY:

HMBC:

 

Problem NMR2D6.5.*

Present an analysis of the following data and propose a structure.

MW: 144 amu

The 1H NMR spectrum in CDCl3:

An expansion of the 1H NMR spectrum:

13C NMR spectrum:

COSY:

An expansion of the COSY spectrum:

HMBC:

An expansion of the HMBC spectrum:

 

Problem NMR2D6.6.* 

Present an analysis of the following data and propose a structure.

MW: 164 amu

The full 1H NMR spectrum in CDCl3:

AN expansion:

13C NMR:

COSY:

Expansion of COSY spectrum:

 

Problem NMR2D6.7.* 

Present an analysis of the following data and propose a structure.

MW: 129 amu

The full 1H NMR spectrum in D2O:

13C NMR spectrum:

COSY spectrum:

 

Problem NMR2D6.8.* 

Present an analysis of the following data and propose a structure.

MW: 173 amu

The full 1H NMR spectrum in CDCl3:

An expansion of the 1H NMR spectrum:

13C NMR spectrum:

COSY:

HMQC:

HMBC:

 

Problem NMR2D6.9.* 

Present an analysis of the following data and propose a structure.

MW: 145 amu

The full 1H NMR spectrum in D2O:

An expanded view of 1H NMR spectrum:

Another expanded view:

13C NMR spectrum:

COSY spectrum:

 

Problem NMR2D6.10.* 

Present an analysis of the following data and propose a structure.

MW: 251 amu

The full 1H NMR spectrum in DMSO-d6:

An expanded view of the 1H NMR spectrum:

Another expansion:

13C NMR spectrum:

COSY spectrum:

Expansion of COSY:

HMQC spectrum:

 

Problem NMR2D6.11.* 

Present an analysis of the following data and propose a structure.

MW: 244 amu

The full 1H NMR spectrum in DMSO-d6:

An expanded view of the 1H NMR spectrum:

Another expansion of the 1H NMR spectrum:

Another expansion of the 1H NMR spectrum:

13C NMR spectrum:

COSY:

An expanded view of the COSY spectrum:

 

Problem NMR2D6.12.* 

Present an analysis of the following data and propose a structure.

MW:  242 amu

The full 1H NMR spectrum in DMSO-d6:

Expansion of the 1H NMR spectrum:

Another expansion:

13C NMR spectrum:

COSY:

An expansion of the COSY spectrum:

 

Problem NMR2D6.13.* 

Present an analysis of the following data and propose a structure.

MW: 152 amu

The full 1H NMR spectrum in CDCl3:

An expansion of the 1H NMR spectrum:

13C NMR spectrum in CDCl3:

COSY spectrum:

HMQC spectrum:

HMBC spectrum:

 

Problem NMR2D6.14.* 

Present an analysis of the following data and propose a structure.

MW: 152 amu

The full 1H NMR spectrum in CDCl3:

13C NMR spectrum:

COSY spectrum:

HMQC spectrum:

HMBC spectrum:

 

Problem NMR2D6.15.* 

Present an analysis of the following data and propose a structure.

MW: 150 amu

The full 1H NMR spectrum in CDCl3:

 

An expansion of the 1H NMR spectrum:

13C NMR spectrum:

COSY spectrum:

HMQC spectrum:

HMBC spectrum:

 

 

NMR spectra obtained on a JEOL 400 MHz NMR spectrometer.

Contributions from Edward McIntee, College of Saint Benedict | Saint John's University

This site is written and maintained by Chris P. Schaller, Ph.D., College of Saint Benedict / Saint John's University (with contributions from other authors as noted).  It is freely available for educational use.

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Structure & Reactivity in Organic, Biological and Inorganic Chemistry by Chris Schaller is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License

Send corrections to cschaller@csbsju.edu

 

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