Tetramethylsilane tau dhau los ua tsim cov khoom siv sab hauv rau 1 H NMR vim nws muaj zog, ntse resonance kab los ntawm nws 12 protons , nrog rau kev hloov tshuaj lom neeg ntawm tsawg resonance zaus txheeb ze rau yuav luag tag nrho lwm yam 1 H resonances. Yog li, qhov sib ntxiv ntawm TMS feem ntau tsis cuam tshuam nrog lwm cov resonances.
Vim li cas TMS thiaj xaiv raws li tus qauv?
TMS raug xaiv los ua tus qauv rau ntau yam. Qhov tseem ceeb tshaj plaws yog: Nws muaj 12 hydrogen atoms tag nrho cov uas nyob hauv ib puag ncig tib yam. … Qhov ntawd ua rau ib lub ncov, tab sis nws kuj yog lub ncov muaj zog (vim muaj ntau cov hydrogen atoms).
Tus yam ntxwv ntawm TMS yog tus qauv siv zoo li cas?
Vim li cas TMS yog Tus Qauv Zoo? TMS yog unreactive (tshwj tsis yog cov concentration ntawm sulfuric acid, nws yuav tsum tsis txhob siv) thiab nws tsis koom nrog cov qauv. TMS is symmetrical. Yog li nws muab lub ncov ntse ntawm 12 sib npaug protons.
Vim li cas Tetrachloromethane siv los ua cov kuab tshuaj hauv NMR?
Kev piav qhia ntawm lub ntsiab lus (b) ntawm Ludger Ernst cov lus teb, cov kuab tshuaj deuterated yog siv hauv proton NMR vim lub resonance zaus ntawm ib deuteron (2 H) yog txawv ntawm cov proton (1 H). Yog li ntawd, ib tug yuav tsis tas txhawj txog qhov siab tshaj plaws ntawm cov kuab tshuaj nyob rau hauv proton NMR spectrum.
Vim li cas peb thiaj siv NMR spectroscopy?
A nuclearSib nqus resonance (NMR) spectrometer yog cov cuab yeej xaiv rau cov kws tshawb fawb soj ntsuam cov qauv tshuaj. … NMR spectroscopy yog kev siv NMR phenomena los kawm lub cev, tshuaj, thiab roj ntsha ntawm cov teeb meem. Chemists siv nws los txiav txim txog tus kheej molecular thiab qauv.
