IR Spectroscopy Details of Interest

IR Spectroscopy Details of Interest - c*Oop bands 900-675 d...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
IR Spectroscopy Details of Interest 1. Alkanes a. Pretty boring landscape throughout b. Sharp C-H stretch just below 3000 down to around 2850 or so c. Notable C-H scissoring at 1470 and methyl rock 1383 2. Alkenes a. =C-H Stretch 3100-3000 (not necessarily strong) b. C=C stretch 1680-1640 c. Similar to Alkanes except for subtle C=C and =C-H stretches (MAKE SURE TO DISTINGUISH) 3. Alkynes a. –CtripleC-H stretch notable 3330-3270 (Only this in TERMINAL ALKYNES) b. –CtripleC— stretch 2260-2100 (both TERMINAL & INTERNAL ALKYNES) 4. Aromatic Molecules a. ***Overtones 2000-1665 (weak bands) b. =C-H stretch 3100-3000 (similar to Alkenes in not necessarily being strong)
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: c. ***Oop bands 900-675 d. DISTINGUISH FROM ALKENES BY OVERTONES & OOP BANDS 5. Aldehydes a. 2830-2650 (?? Around there) C-H stretches differentiating from ketone b. Obvious C=O stretch 1640-1750 (??something around there) 6. Ketones a. Same as Aldehydes mostly, except for 2850-2650 (?) stretch 7. Esters a. C-O stretches 1300-1000 b. Similar to Aldehydes and ketones with relative location of C=O stretch c. C-H stretch is too high to be aldehyde or ketone 8. Amine a. Primary – 2 N-H stretches (peaks) 3300-3500 b. Secondary – 1 N-H stretch c. Tertiary – no N-H stretches...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online