310-3 - Organic Lecture Series CH 310 N LECTURE 3 Textbook...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Organic Lecture Series 1 CH 310 N LECTURE 3 Textbook Assignment: Chapter 13 (NMR) Homework (for credit): POW 1 posted (Due Jan 31) Today’s Topics: NMR-chemical shift; equivalent H’s; splitting Notice & Announcements: Office Hrs- JAC-Mon & Wed: 2-4 pm WEL 1.316 Organic Lecture Series 2 The more deshielded the nucleus, the higher the frequency of resonance, the higher the ppm value in the spectrum. More deshielding -the HIGHER ppm value the HIGHER ppm value Upfield-protons are shielded Downfield-protons are deshielded
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Organic Lecture Series 3 • Essentials of an NMR spectrometer are a powerful magnet, a radio-frequency generator, and a radio-frequency detector • The sample is dissolved in a solvent, most commonly CDCl 3 or D 2 O, and placed in a sample tube which is then suspended in the magnetic field and set spinning • Using a Fourier transform NMR (FT-NMR) spectrometer, a spectrum can be recorded in about 2 seconds NMR Spectrometer NMR Spectrometer Organic Lecture Series 4 NMR Spectrometer NMR Spectrometer
Background image of page 2
Organic Lecture Series 5 1 H-NMR spectrum of methyl acetate – Downfield: Downfield: the shift of an NMR signal to the left on the chart paper
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 10

310-3 - Organic Lecture Series CH 310 N LECTURE 3 Textbook...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online