Organic Spectroscopy Lecture 5 Notes

2013 gregory r cook ndsu delays alternating with

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Unformatted text preview: ng with Nutation for Tailored Excitation Resonances @ frequency of the delay remain static and affect is cummulative. Other resonances are less excited and are diminished. 25 Coupling and the Rotating Frame of Reference ‣ Actual magnetization vector is complicated from our outside frame of reference ‣ Imagine you are spinning at the larmor frequency and are observing the magnetization on the XY plane ‣ It would stand still ©2013 Gregory R. Cook, NDSU Thursday, January 17, 13 26 C-H Connectivity - Spin Echo sequence ‣ In a rotating frame of reference, a vector that is coupled with another nuclei will split. In that reference frame one magnetization vector will precess slower and one will precess faster than the frame. The result will be divergent precessions of the vectors. ©2013 Gregory R. Cook, NDSU Thursday, January 17, 13 27 C-H Connectivity - Spin Echo sequence ©2013 Gregory R. Cook, NDSU Thursday, January 17, 13 28 Spin Echo is basis for Attached Proton Test ©2013 Gregory R. Cook, NDSU Thursday, January 17, 13 29 APT ©2013 Gregory R. Cook, NDSU Thursday, January 17, 13 30 DEPT ‣ ©2013 Gregory R. Cook, NDSU Thursday, January 17, 13 Distortionless Enhancement by Polarization Transfer 31 DEPT ©2013 Gregory R. Cook, NDSU Thursday, January 17, 13 32 Reverse DEPT ©2013 Gregory R. Cook, NDSU Thursday, January 17, 13 33...
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This note was uploaded on 02/10/2014 for the course CHEM 744 taught by Professor Gregorycook during the Spring '13 term at ND State.

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