Why we use TMS in NMR spectroscopy?
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Answer Posted / bharat kumar mishra raipur ka
In nmr spectrum we usually take TMS our intarnal refernce because TMS has the following character which proves it to be most suitable one
1-it is volatile liquid having b.p.=26.5°C is inert to most of the reagents and is soluble in most of the organic solvent
2-when a very small amount is added to the sample it gives an intense sharp signal aven at low cone
3-all the hydrogen in TMS are equivalent and furter more silicon is more electropositive compound to carbon and tends to donate electron density to methyl group thier by increasing thier shielding
4-since its b.p. is low it can be easily removed from sample are pure compound can be recoverd
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