Quiz4 - for each set of equivalent protons, even on the...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Quiz 4 S343 Summer 2008 Name___________________________________________________________ 1. (1pt) What is meant by “downfield” in an NMR spectrum? 2. (1pt) Which of these carbon atoms would have a signal that is furthest downfield? CH 3 CH 2 CH 2 OH 3. (2pts) What is the physical reason that one signal would appear downfield from another signal in an NMR spectrum? 4. (3 pts) Label all sets of equivalent carbons in this molecule. O 5. (2pt) How many signals would you expect to see in a 13 C NMR for the molecule in problem 4? How many signals in a 1 H NMR? (Assume you would see a signal
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: for each set of equivalent protons, even on the aromatic ring.) # of 1 H signals # of 13 C signals 6. (1pts) How could you use proton NMR to distinguish between these molecules? Be specific. 7. (4 pts) Draw an approximate proton NMR for this molecule: 1 2 3 4 5 6 7 8 9 10 8. (6pts) Determine the structure of a molecule that is consistent with this IR and proton NMR data. Draw a table of data, list all pieces, and give a final answer. Characteristic IR peaks: 2960 cm-1 (intense), 1738 cm-1 (intense) Pavia 138b Table: Pieces:...
View Full Document

This note was uploaded on 01/18/2012 for the course CHEM S343 taught by Professor Benburlingham during the Summer '11 term at Indiana.

Page1 / 3

Quiz4 - for each set of equivalent protons, even on the...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online