lecture7_2D - Todays Lecture 8) Monday, Oct 19:...

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A. S. Edison University of Florida 2009 Today’s Lecture 8) Monday, Oct 19: Introduction to 2D NMR a. Two pulse exchange experiment (aka NOESY) b. COSY for homework
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A. S. Edison University of Florida 2009 1D NMR I z 90 ö I x ¾ ® ¾ ¾ - I y W I t ö I z ¾ ® ¾ ¾ - I y cos ( W I t) + I x sin ( W I t) For a single spin and no coupling, a 1D NMR experiment can be described as follows. Recall that the drawing of the FID signifies that the receiver is turned on to record the signal. We will ignore relaxation for the product operator analysis.
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A. S. Edison University of Florida 2009 The next step… What happens to the spins if the receiver is not turned on? Just the same thing (they don’t care if you record their signal or not). I z 90 ö I x ¾ ® ¾ ¾ - I y W I t ö I z ¾ ® ¾ ¾ - I y cos ( W I t) + I x sin ( W I t)
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A. S. Edison University of Florida 2009 Time to add another pulse I z 90 ö I x ¾ ® ¾ ¾ - I y W I t ö I z ¾ ® ¾ ¾ - I y cos ( W I t) + I x sin ( W I t) 90 ö I x ¾ ® ¾ ¾ - I z cos ( W I t) + I x sin ( W I t) What happens here?
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A. S. Edison University of Florida 2009 Let’s look in more detail
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lecture7_2D - Todays Lecture 8) Monday, Oct 19:...

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