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Problems in NMR and IR Spectroscopy

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Welcome to WebSpectra - This site was established to provide chemistry students with a library of spectroscopy problems. Interpretation of spectra is a technique that requires practice - this site provides ¹H NMR and ¹³C NMR, DEPT, COSY and IR spectra of various compounds for students to interpret. Hopefully, these problems will provide a useful resource to better understand spectroscopy. This project is supported by Cambridge Isotope Laboratories and the UCLA Department of Chemistry and Biochemistry.

Project Director	Professor Craig A. Merlic	©Copyright 1997 Craig A. Merlic, Barry C. Fam and The Regents of University of California
NMR Facility Contributor	Dr. Jane Strouse

Instructional Documents

Solving Spectral Problems
Overview of NMR Spectroscopy
Notes on NMR Solvents
Types of NMR Spectra
Introduction to IR Spectra
Table of IR Absorptions

Awards

Problems
All problems contain ¹H and ¹³C NMR Spectra
Problems with additional spectra are marked: IR Spectrum, DEPT spectra, and COSY spectrum.

Use the WebSpectra Search to locate specific types of compounds

IR Spectra may be compared in order to illustrate differences in absorption using the WebSpectra IR Comparison.

BEGINNING

Compound 1	Compound 2	Compound 3	Compound 4
Compound 5	Compound 6	Compound 7	Compound 8
Compound 9	Compound 10	Compound 11	Compound 12
Compound 13	Compound 14	Compound 15	Compound 16
Compound 17	Compound 18	Compound 19	Compound 20
Compound 21	Compound 22	Compound 23	Compound 24
Compound 25	Compound 26	Compound 27	Compound 28
Compound 29	Compound 30	COMBINED ANSWER KEY BEGINNING PROBLEMS 1-15	COMBINED ANSWER KEY BEGINNING PROBLEMS 16-30

INTERMEDIATE 1

Compound 1	Compound 2	Compound 3	Compound 4
Compound 5	Compound 6	Compound 7	Compound 8
Compound 9	Compound 10	Compound 11	Compound 12
Compound 13	Compound 14	Compound 15	Compound 16
Compound 16	COMBINED ANSWER KEY BEGINNING PROBLEMS INTERMEDIATE 1

INTERMEDIATE 2

Compound 1	Compound 2	Compound 3	Compound 4
Compound 5	Compound 6	Compound 7	Compound 8
Compound 9	Compound 10	Compound 11	Compound 12
Compound 13	COMBINED ANSWER KEY BEGINNING PROBLEMS INTERMEDIATE 2

ADVANCED

Compound 1	Compound 2	Compound 3	Compound 4
Compound 5	Compound 6	Compound 7	Compound 8
Compound 9	Compound 10	Compound 11	Compound 12
Compound 13	Compound 14	Compound 15	Compound 16
	COMBINED ANSWER KEY - ADVANCED PROBLEMS

NMR Links of Interest

General

WebSpectra Technical Notes
NMR at Widener University
Widener University, Pennsylvania

Spectrum Archives

Organic Structure Elucidation Workbook
University of Notre Dame, Indiana
The FTNMR Free Induction Decay Archive
Pacific Lutheran University, Washington
Integrated Spectral Data Base System for Organic Compounds
National Institute of Materials and Chemical Research, Japan
Spectroscopic Tools

Software

Compilation of Educational NMR Software
University of York, United Kingdom
Compilation of Educational NMR Software
European Molecular Biology Laboratory, Germany

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