Why we use TMS in NMR spectroscopy?
Answer Posted / mehdi hatefi
TMS Stands for TetraMethylSilane.Si(CH3)4
Owing to the electronegativity difference between Silicon
and Carbon,electron density on carbon is greater than silicon and hydrogen atoms of methyl group are greatly shielded and compared to most of organic compounds,hydrogen atoms of TMS resonate at a higher frequncy that by definition sigma value for TMS is zero
| Is This Answer Correct ? | 29 Yes | 3 No |
Post New Answer View All Answers
how do you make a amine sugar
Protactinium-231 decays to Uranium-235. How is this decay used in radiometric dating and the determination of geological ages?
Protactinium is a rare and highly radioactive element. How is its radioactivity utilized in various scientific and industrial applications?
which question ask me in grasim in inerview?
Protactinium-234 is an important tool for studying ocean circulation. How is it utilized in oceanographic research?
Explain the differences between organic and inorganic chemistry?
How hydrate is forming along with API?
What is the difference between cracking, pyrolysis, destructive distillation, hydroforming, carbonization and dry distillation?
why use of sulfuric acid in roi test in pharmaceutical industry
what things are suitable for investigatory project?
Discuss the historical significance of Actinium and its discovery in the context of the periodic table.
we shall use Dichloromethane in last stage of API.
Actinium-227 has a long half-life and emits alpha particles. How can this property be harnessed in radiation detectors or other monitoring devices?
Why we are use glass viscometer, and what is calculation manual calculation formula as per USP. How many types of viscometre in glass type viscometer.
Protactinium-231 emits alpha particles. How can this property be utilized in radiation detectors or other scientific instruments?