Handout 3 - Infrared (IR) Spectroscopy T 13.4, 13.20 -...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Infrared (IR) Spectroscopy T 13.4, 13.20 - 13.22, IR part only of 15.14, 16.18 Functional Groups: absorption of IR light, molecular motion 17.17, 19.18, 20.18 and 22.19 Wavenumber (cm -1 ) O-H Alcohol ~ 3400 strong (s), broad (br) Carboxylic Acid ~ 3000 s, very br N-H Amine or Amide ~ 3400 medium (m) C-H Alkyne ~ 3300 m, sharp (sh) =C-H Arene ~ 3050 m, sh =C-H Alkene ~ 3050 s C-H Alkane ~ 2900 s C-H Aldehyde ~ 2750 weak (w) C C Alkyne ~ 2150 w, sh C N Nitrile ~ 2250 w, sh C=O Ester, Aldehyde, Ketone ~ 1700 s Carboxylic Acid, Amide C=C Alkene ~1650 m, sh C=C Arene 1600 and 1500 m, sh C-O stretch ~ 1100 s, br Lowered by conjugation, increased by strain and EW groups Acid-Base Reactions T 1.7 More Stable Base = More Stabe Electrons equilibrium favors more stable (weaker) base 3.5C stronger acid = weaker conjugate base stronger base = weaker conjugate acid More Stable Base, Weaker Base ( most important to least important ) 1.15 1) Conjugate Bases from the Stronger Acids are Very Weak
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/23/2010 for the course CHEMISTRY 3361 taught by Professor Any during the Spring '10 term at Kennesaw.

Page1 / 2

Handout 3 - Infrared (IR) Spectroscopy T 13.4, 13.20 -...

This preview shows document pages 1 - 2. Sign up to view the full document.

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