Proton magnit rezonans spektroskopiyasi (pmr)

PROTON MAGNIT REZONANS SPEKTROSKOPIYASI (PMR)

KIRISH

• YaMR organic moddalarni strukturasini aniqlashda juda muhim usul hisoblanadi.
• Turli xildagi atomlarni o’rganishda foydalaniladi:
• 1H
• 13C
• 15N
• 19F
• 31P

• YaMR

• Magnit maydoni bo’lmagan vaqtda spin holatlari orasida farq bo’lmaydi.

• Tashqi magnit maydon yuqori va quyi energetik spin holatlarga farqlanishiga sabab bo’ladi.

• Chunki, tashqi maydon intensivligining ortishi spin holatlari o'rtasida energiyada bo'linish tobora kengayib boradi (3)

• Magnit Rezonans

• Izobutan

• Common NMR splitting patterns

• Learning Module

• Practicing NMR Spectroscopy

• Table of Contents

• The influence of neighboring groups (deshielding) on 1H
• chemical shifts is cumulative

•  = 7.3 5.3 3.1 ppm

•  = 2.1 4.06 5.96 ppm

• TMS

• = 3.50 ppm
• 3H

• = 4.20 ppm
• 2H