Z-axis pulse

The modern NMR instrument will have z-axis pulsed field gradient capabilities. This capability allows the collection of the absolute... 

About 150 mg of each sample (1 , 2" and 3 generation wedges(41 was dissolved in 0.7mL deuterated acetone in a 5 mm NMR tube for NMR studies. NMR spectra were obtained on a Varian Vnityplus 750 MHz NMR spectrometer equipped with four RF chatmels, a Performa II z axis pulse field gradient (PPG) accessory, and a Varian H/ C/ P/ H foin chapel triple resonance probe with a PFG coil. Acetone-de was also used as internal references for both H (2.05 ppm) and C (29.92 ppm) chemical shifts. All experiments were performed at 25.0 0.1 °C. All data were processed with Varian s VNMR software on a SUN Ultra-10 workstation. 

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