home *** CD-ROM | disk | FTP | other *** search
/ Organic Chemistry (8th Edition) / Image.iso / pc / data1.cab / Program_Files / PC_IR_Tutor / INTERP04 / 00056.png < prev    next >
Portable Network Graphic  |  2003-05-14  |  1.2 KB  |  199x97  |  1-bit (2 colors)
   ocr: 2119 cm-1- C=C stretch. Normal range. 2220+10 cm-1 for terminal alkynes, 2225+10 - cm-l for internal alkynes. Absent when symmetrically substituted (overlay 4-octyne). Compare - to the CEN stretch in heptyl I - cyanide (2247 cm-1).