Read More
Date: 29-5-2017
![]()
Date: 27-9-2020
![]()
Date: 8-9-2019
![]() |
If you look at an IR spectrum of 1-butanol, you will see:
Peak shapes are sometimes very useful in recognizing what kind of bond is present. The rounded shape of most O-H stretching modes occurs because of hydrogen bonding between different hydroxy groups. Because protons are shared to varying extent with neighboring oxygens, the covalent O-H bonds in a sample of alcohol all vibrate at slightly different frequencies and show up at slightly different positions in the IR spectrum. Instead of seeing one sharp peak, you see a whole lot of them all smeared out into one broad blob. Since C-H bonds don't hydrogen bond very well, you don't see that phenomenon in an ether, and an O-H peak is very easy to distinguish in the IR spectrum.
|
|
ما أبرز التغيرات التي تحدث عند الرجال عندما يصبحون آباءً؟
|
|
|
|
|
حقائق مثيرة للاهتمام حول الأرض
|
|
|
|
|
قسم الشؤون الفكرية يصدر العدد 53 من مجلة عطاء الشباب
|
|
|