Transcription of Basic NMR Concepts - Boston University
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Basic NMR Concepts - Boston University
BU-CIC-12-041 Basic NMR Concepts :A Guide for the Modern LaboratoryDescription:This handout is designed to furnish you with a Basic understanding of Nuclear MagneticResonance (NMR) Spectroscopy. The Concepts implicit and fundamental to the operationof a modern NMR spectrometer, with generic illustrations where appropriate, will bedescribed. It can be read without having to be in front of the spectrometer itself. Somebasic understanding of NMR spectroscopy is of Contents: Basic NMR IntroductionII. basics of FT-NMR: Six critical Applications of FT-NMR1) Shimming, line widths, and line shapes2) Signal-to-noise measurements3) Integration4) Homonuclear decoupling5) 13C-{1H} spectra6) 13C-{1H} DEPT spectraBU-CIC-12-042 IntroductionNuclear Magnetic Resonance (NMR) is a powerful relatively non-selectiveanalytical tool, which enables you to ascertain molecular structure including relativeconfiguration, relative and absolute concentrations, and even intermolecular challenging and specialized NMR techniques have become routine.
1. Spectrometer Frequency [sfrq]: It is called a “1-PULSE” experiment because one radio frequency (Rf) pulse (pw) is applied per cycle. The Rf pulse excites the nuclei, which then emit Rf during the acquisition time, giving rise to an NMR signal in the form of an exponentially decaying sine wave, termed free-induction decay (FID).
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