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À´Ô´¡¶Infrared and Raman characteristic group frequencies. Tables and charts ¡·

In general, azoles have three or four bands in the region 1670-1320 cm- I
(5.99-7.58/lm) due to C=C and C=N stretching vibrations. The intensities
of these bands depend on the nature and positions of the substituent and on
the position and nature of the ring heteroatoms.
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