Download
slide1 n.
Skip this Video
Loading SlideShow in 5 Seconds..
1 H-NMR SPECTROSCOPY 2008 PowerPoint Presentation
Download Presentation
1 H-NMR SPECTROSCOPY 2008

1 H-NMR SPECTROSCOPY 2008

230 Vues Download Presentation
Télécharger la présentation

1 H-NMR SPECTROSCOPY 2008

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. 1H-NMR SPECTROSCOPY 2008

  2. Unknown C4H8O2

  3. 1H-NMR

  4. 1H-NMR - Theory 3.1 Nuclear Spin States 3.2 Nuclear Magnetic Moments 3.3 Absorption of Energy

  5. 1H-NMR - Theory

  6. 1H-NMR - Theory 3.4 Absorption / Resonance 3.4 Absorption / Resonance

  7. 1H-NMR 3.7 The Spectrometer The FID (Free Induction Decay) Fourier Transform (time domain signal converted to frequency domain signal)

  8. 1H-NMR – Chemical Shift Chemical equivalence Hybridization effects Electronegativity Effects Shielding (vs deshielded) hexane

  9. 1H-NMR Chemical Shift Hybridization effects Electronegativity Effects

  10. 1H-NMR – Chemical Shift

  11. 1H-NMR – Chemical Shift Acidic and Exchangeable Protons - Chemical Shift Ranges

  12. 1H-NMR – Chemical Shift Magnetic Anisotropy (3.12)

  13. 1H-NMR – Coupling Spin-Spin Splitting (3.13)

  14. 1H-NMR – Coupling Spin-Spin Splitting (3.13)

  15. 1H-NMR – Coupling Spin-Spin Splitting (3.13)

  16. 1H-NMR – Coupling The Coupling Constant (3.17)

  17. 1H-NMR – Coupling The Coupling Constant (3.17)

  18. 1H-NMR – Coupling The Coupling Constant (3.17)

  19. 1H-NMR – Coupling The Coupling Constant (3.17)

  20. 1H-NMR – Coupling The Coupling Constant (3.17)

  21. 1H-NMR – Coupling - The Coupling Constant (3.17) C6H5-CH=CH-CO2CH3 C10H10O2 2587.6 2571.6 3073.8 3089.8

  22. 1H-NMR - Aromatics (3.19C)

  23. 1H-NMR 4-n-propylphenol

  24. 1H-NMR - Aromatics Chemical Shift Calculation 6.75 vs 7.03 ppm

  25. 1H-NMR – Unknown (C6H4Br)

  26. 1H-NMR – Unknown (C6H6BrN)

  27. 1H-NMR – Unknown (C7H7BrO) C7H7OBr

  28. 1H-NMR – Unknown isomers Unknown A (C7H14) Unknown B (C7H14)