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COSY
Course: CHEM 380, Fall 2009School: Sveriges...
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(Correlation COSY Spectroscopy) /2 t1 evolution /2 t2 acquire 1 1. 2. 3. 4. 2 3 4 Bulk polarization is tipped into xy-plane by first pulse. Signals will precess a characteristic frequency around z-axis. After time t1, vector will have moved to new position; it can be considered as the sum of two vectors in x- and y-directions. A second pulse has no effect on the x-component, but moves the y-component the to...
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(Correlation COSY Spectroscopy)
/2 t1
evolution
/2 t2
acquire
1
1. 2. 3. 4.
2
3
4
Bulk polarization is tipped into xy-plane by first pulse. Signals will precess a characteristic frequency around z-axis. After time t1, vector will have moved to new position; it can be considered as the sum of two vectors in x- and y-directions. A second pulse has no effect on the x-component, but moves the y-component the to z-axis. This new z-component does not contribute to the peak intensity; only the x-component will.
This experiment is repeated with variable t1; the result are a series of spectra that are presented as a contour plot. Note that for an...
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