PPT-1 NMR Spectroscopy CHEM 212

Introduction to Spectroscopy 2 Spectroscopy is the study of the interaction of matter with the electromagnetic spectrum Electromagnetic radiation displays the properties of both particles and waves. Leo . Lamontagne. MATRL286K. December 10. th. , 2014. Intro to Nuclear Magnetic Resonance . 2. Element specific technique utilizing nuclear spins of atoms. Nuclear spins are aligned in a magnetic field and pulsed with a radio frequency causing spins to . 1. 1. 2. Deduce the Structure. C. 4. H. 8. O. 2. 4.27 . ppm. (q, 1H); 3.91 (s, 1H); 2.22 (s, 3H); 1.39 (d, 3H). 2. 3. Deduce the Structure. 3. C. 9. H. 12. O. 6.58 (s, 1H); 6.52 (s, 2H); 3.74 (s, 3H); 2.27 (s, 6H).. Second Order Effects in NMR. Splitting does not follow N+1; cannot be solved graphically. Different intensities. Additional peaks. Cannot directly measure coupling constants. Causes of Second Order Spectra. Nuclear Magnetic Resonance. Powerful analysis. Identity. Purity. No authentic needed. Analyze nuclei. 1. H, . 13. C, . 31. P, . etc. Get information of how they are attached. Nuclear Magnetic Resonance. Relaxation times vs. viscosity and impurities. Tony Hyun Kim. (Partner: Connor McEntee). 11/17/2008. 8.13 MW2-5 Prof. Roland. Topics to be discussed. Introduction. Relaxation times (T. 1. , T. 2. ). Theory of NMR. Presented by- Santosh Kumar Singh. Integrated . Ph.D. student. Supervisor – Dr. Aloke Das. 1. Lone pair of Oxygen of carbonyl group or any lone . pair containing atom interacts with the aromatic ring.. 2. C. DANIEL WITSCH, VOLKER LUTTER, GUIDO W. FUCHS, . THOMAS GIESEN. Institute of Physics, University of Kassel, Germany. JÜRGEN GAUSS,. Institut. . für. . Physikalische. . Chemie. , Universität Mainz, Germany. 11.00 Gareth Morris . . Welcome. , introduction and history. 11.30 Peter . Kiraly. . Interferogram. . and real-time acquisition methods. 12.00 Laura . Castañar. . . Zangger. -Sterk. and band-selective methods. Electron can behave like a tiny bar magnet.. Atomic nucleus can spin and behave as a tiny bar magnet. These . spinning nuclei generate tiny magnetic . fields. Any nucleus will spin (odd mass or odd atomic number. Fall . 2017. FACTORS THAT INFLUENCE PROTON SHIFTS. Local Fields. Shielding by e. -. that surround the resonating nuclei arise from . local fields . They are a simple function of e. -. density affected by induction, resonance and hybridization effects. Mass Spectrometry . Carbon-13 NMR. Proton NMR. Chromatography . 1. Infrared Spectroscopy. Absorption of infrared radiation causes bonds to vibrate. Different bonds absorb different wavelengths. These can be identified using the table on the data sheet. . 1. Introduction to Spectroscopy. 2. Spectroscopy. is the study of the interaction of matter with the electromagnetic spectrum. Electromagnetic radiation displays the properties of both particles and waves. 1 FALL 2017 CHEM 430 IR SPECTROSCOPY Long Lecture Play Dr. Justik Introduction The method provides a rapid and simple method for observing the functional group species present in an organic molecule 2. Nuclear Magnetic Resonance Spectroscopy. After hydrogen, the most useful atom providing information is carbon-13.. The . overall intensity of a . 13. C signal is about 6400 . times . less than the intensity of an .