NMR supplement Hendrickson, W-A& Wuthrich, K Macromolecular 16. Leahy, D.J., Aukhil, I.& Erickson, H.P. 2.0 Cell 84 A K.D. thanks the Wellcome Trust and The queens 2D0i9 Riddiough. G. Nature Struct. Biol 18. sakaning. AK Kean. cel l8r.597-605i(eRw& by the Wellcome Trust. The authors acknowledge
6 The noe effect c Gerd Gemmecker, 1999 Nuclear OVERHAUSER Effect(NOE): resonance line intensity changes caused by dipolare cross- relaxation from neighbouring spins with perturbed energy level populations To understand the nature of the NOE, we have to look at a two-spin system I' and
4 DQF-COSY, Relayed-COSY, TOCSY Gerd Gemmecker 1999 Double-quantum filtered cOSY The phase problem of normal COsY can be circumvented by the dQF-COSY, using the MQc term generated by the second 90 pulse Ilz cos( @2t1) cos( t1) polarization
一、谱图中化合物的结 构信息 structure information of compound in spectrograph 二、简化谱图的方法 methods of simpling spectrograph 三、谱图解析 spectrum unscrambling 四、谱图联合解析 deduce the structures from NMR spectrum and IR spectrum
3 Multidimensional NMR Spectroscopy C Gerd Gemmecker 1999 Models used for the description of NMR experiments 1. energy level diagram: only for polarisations, not dependent phenom