NMR spectroscopy in easy way - Part 5 | Magnetic anisotropy and chemical shift

What is diamagnetic anisotropy? It is the non-uniformity of magnetic field due to pi electrons which may either produce shielding or deshielding effect on surrounding portions. In case of alkenes and aromatic compounds, it shows deshielding effect whereas protons attached to alkyne carbon are shielded resulting in decrease in the chemical shift.

Part-1: Principles of NMR spectroscopy :    • NMR spectroscopy in easy way - Part 1  
Part -2 : How NMR works :    • NMR spectroscopy in easy way - Part 2...  
Part-3 : NMR spectral interpretation and rules:    • NMR spectroscopy in easy way - Part 3...  
Part-4 : NMR spectral table:    • NMR spectroscopy in easy way - Part 4...  
Part-5 : Magnetic anisotropy:    • NMR spectroscopy in easy way - Part 5...  
Part-6: Solvents in NMR :    • NMR spectroscopy in easy way - Part-6...  
Part-7: 1H vs 13C NMR :    • NMR spectroscopy in easy way - Part 7...  
Part-8: Number of NMR signals:    • NMR spectroscopy in easy way - Part 8...  
Part-9: Magnetic equivalence:    • NMR spectroscopy in easy way - Part 9...  
Part-10: NMR signals in cyclic compounds:    • NMR spectroscopy in easy way - Part 1...