New TFH triple resonance probe

TFH triple resonance probe is designed for standard 2 channel spectrometer, since the high frequency double-tuned coil is dedicated for proton and fluorine.
2D ¹³C-¹⁹F experiment with ¹H decoupling, 2D ¹³C-¹H experiment with ¹⁹F decoupling, and 1D ¹³C experiment with ¹H and ¹⁹F simultaneous decoupling are possible in analysis of various fluorine-containing compounds.

• 1. Auto-tuning is default^*1
• 2. Additional attachments are not necessary for triple resonance experiments^*2

*1 Auto-tuning unit is required
*2 In case of JNM-ECZ series spectrometer

 

In general, signal-to-noise ratio of ¹³C signal in highly-fluorinated compounds is often very poor despite of ¹H decoupling due to the splitting caused by fluorine nuclei.
This may also result in very complicated splitting patterns and overlapping signals. If we apply simultaneuous ¹H and ¹⁹F decoupling in ¹³C experiment, sensitivity will increase and the spectrum will be easier to analyze. This greatly helps to analyze complex fluorinated compounds.

All data are collected with JNM-ECZ400S and TFH probe.
Sample : 20% 2,2,3,3-tetrafluoro-1-propanol in CDCl₃ Scans : 64

*TFH probe:observe Tunable multinuclear including 19F and 1H probe