March 17, 2025, 07:28:50 PM
Forum Rules: Read This Before Posting


Topic: NMR Peaks; Hydrogen Splitting  (Read 2810 times)

0 Members and 1 Guest are viewing this topic.

Offline jhb1422

  • New Member
  • **
  • Posts: 5
  • Mole Snacks: +0/-0
NMR Peaks; Hydrogen Splitting
« on: February 09, 2010, 10:15:27 PM »


(CH3)2CHCOOCH3

My question is indicated by the colors.

According to the method for peak splitting, the CH3's hydrogens are split into two peaks. (adjacent n+1).

However, how many peaks would the CH be split into? My original assumption is 8 (3H+1 = 4, 4x2 = 8 ). However my solutions manual says the answer is 6.... why is 6 the correct answer?

Offline orgopete

  • Chemist
  • Sr. Member
  • *
  • Posts: 2636
  • Mole Snacks: +213/-71
    • Curved Arrow Press
Re: NMR Peaks; Hydrogen Splitting
« Reply #1 on: February 10, 2010, 07:52:46 AM »
The rule should be interpreted that adjacent to the CH are 6-hydrogens. The adjacency rule should then be 6 + 1 = 7 peaks.
Author of a multi-tiered example based workbook for learning organic chemistry mechanisms.

Sponsored Links