Chapter 9 Nuclear Magnetic Resonance andE Mass Spectrometry: Too or Structure, Determinat 抗谱和质谱
Chapter 9 Nuclear Magnetic Resonance and Mass Spectrometry: Tools for Structure Determination 核磁共振谱和质谱
ORGANIC CHEMISTRY Chapter 9 9.1 Introduction Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 9 9.1 Introduction
ORGANIC CHEMISTRY Chapter 9 g How are molecular structures determined? One o way Is though the use of spectroscopic methods Spectroscopy is the study of the interaction of energy with matter o When energy is applied to matter it can be absorbed emitted cause a chemical change or be transmitted o Nuclear magnetic resonance(NMR) spectrometry -energy absorption by molecules that have been placed in a strong magnetic field o Mass spectrometry(MS)-molecular structure robed by bombarding molecules with a beam of high energy electrons Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 9 How are molecular structures determined? One way is though the use of spectroscopic methods. Spectroscopy is the study of the interaction of energy with matter. When energy is applied to matter it can be absorbed, emitted, cause a chemical change, or be transmitted. Nuclear magnetic resonance (NMR) spectrometry –energy absorption by molecules that have been placed in a strong magnetic field. Mass spectrometry (MS) — molecular structure probed by bombarding molecules with a beam of high energy electrons
ORGANIC CHEMISTRY Chapter 9 9.2 The Electromagnetic Spectrum Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 9 9.2 The Electromagnetic Spectrum
ORGANIC CHEMISTRY Chapter 9 o Electromagnetic radiation is one type of energy e=h hc o NMR involves absorption of energy in the radiofrequency range Highe Lowest waelenst ium IINO 10 Gamma I ray X viole Infrared Radio frequency iN 60O 7 751 VIsible region Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 9 Electromagnetic radiation is one type of energy. E = hv = hcλ NMR involves absorption of energy in the radiofrequency range