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Using Silicon NMR Spectroscopy To Analyze Compounds

1H
13C

31P

19F

29Si

11B

59Co

6,7Li

15N

What can you do with 29Si?

Follow the hydrolysis of alkylalkoxysilanes and the subsequent condensation reactions. 29Si NMR differentiates the silanol monomers and the M-structures, D-structures, and T-structures of the oligomers

Did You Know?

Silicon, often thought of as inorganic, it is a vital element for many life forms. Algae (diatoms) convert about six billion metric tons of silicon into silica each year. Silicon also plays important roles in grasses, trees, and bone.

Despite this, the carbon-silicon (C-Si, organosilicon) bond does not exist in nature. Only in the lab have chemists devised synthetic routes to organosilcons. This has led to silicones, organofunctionalized silanes and other valuable materials. Continued R&D and commercialization has resulted in a wide range of industrial and consumer applications.

In 2016 researchers reported using modified enzymes to catalyze the formation of the C-Si bond. This opens the possibility of using biomolecules to produce commodity and specialty organosilicons rather than toxic or expensive catalysts.

Recommended Literature

H. C. Marsmann in Encyclopedia of Nuclear Magnetic Resonance, John Wiley & Sons, Inc., Chichester, 1996; Vol. 7, 4386-4398E. A. Williams in The Chemistry of Organic Silicon Compounds, John Wiley & Sons, Inc., Chichester, 1989; Vol. 1, 511-554

 

29Si Properties

  • 4.7% natural abandance
  • Spin 1/2
  • Chemical shift range of 825 ppm
  • Receptivity 2.09
  • Gyromagnetic ratio -8.465 MHzT-1
  • Reference standard (CH3 )4Si
  • Freq EFT-90: 17.882 MHz

Nuclei Series Download

To download a copy of Silicon-29 for your use and reference click on the download PDF link below.

1H     |     13C     |   31P     |     19F    |    29Si  

11B     |     59Co     |     6,7Li    |     15N

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