This is an interactive tutorial presenting proton NMR for students in a university level introductory organic chemistry course. It consists of four components: - Theory, Correlation Table, Virtual Lab, and a Quiz. In the latter students build a spectrum by dragging and dropping signals from a "peak pool" onto a baseline.
Type of Material:
Could be used for self-study or assigned as homework.1st year organic students being introduced to NMR will benefit greatly.
HTML probably using Java.
Identify Major Learning Goals:
Understand the various components of an NMR spectrum (peak integration, chemical shift, splitting pattern). Demonstrate an ability to systematically analyze an NMR spectrum and propose a structure.
Target Student Population:
1st year organic students.
Prerequisite Knowledge or Skills:
Students should have some knowledge of functional groups and which groups are electron dense.
Easy to follow the stepwise, linear format. The animations are excellent and very helpful.
The background discussion related to the reason for the absorption is quite poor and needs to be redone. The discussion behind the Fourier Transform technique is in fact incorrect and needs to be redone. No mention of nuclear "spin flip" in the theory section.
Potential Effectiveness as a Teaching Tool
User should have an understanding of how to interpret a 1H NMR by evaluating the various components of a spectrum in a systematic way. Good problem-solving skills are developed and plenty of practice problems are provided so the user can get immediate feedback. This is a very clean and quick way to get students to master downfield and upfield shifting, integration, equivalence etc.
More attention needs to be paid to the background information relating to how the process actually works. The current explanations are so poor that the students are better off not viewing them.
Ease of Use for Both Students and Faculty
Very easy to navigate with an overall outline along the left side and an arrow key to proceed to the next slide. It was obvious how to enter the answers to the problems given (multiple choice or fill in the blanks). Nice use of color to correlate answer boxes with particular NMR signals so it was very user-friendly. This is a readily navigated site with a clarity that encourages use.
The main navigation icons are a little bit blurry. The animations are very clever. The pencil like figure is probably a detraction.
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