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Are carbonyls the only bonds that have overtones in IR spectroscopy?
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+ Analytical chemistry
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Adam Abraham (Abraham Abraham)
Are carbonyls the only bonds that have overtones in IR spectroscopy?
NO! However, the overtones for the carbonyl absorption is one of the most commonly recognized. This is because the carbonyl fundamental absorption is one of strongest peaks, which makes the overtone similarly relatively strong and observable. Also, the overtone for the carbonyl is usually easily seen since it occurs in a region of the spectrum (around 3400cm-1) where there are not too many other peaks which can obscure the overtone. Aromatic compounds frequently give relatively strong overtones in the area of 1700 cm-1 to 2000 cm-1 which can help identify the substitution pattern of groups on the ring.
NO! However, the overtones for the carbonyl absorption is one of the most commonly recognized. This is because the carbonyl fundamental absorption is one of strongest peaks, which makes the overtone similarly relatively strong and observable. Also, the overtone for the carbonyl is usually easily seen since it occurs in a region of the spectrum (around 3400cm-1) where there are not too many other peaks which can obscure the overtone. Aromatic compounds frequently give relatively strong overtones in the area of 1700 cm-1 to 2000 cm-1 which can help identify the substitution pattern of groups on the ring.
NO! However, the overtones for the carbonyl absorption is one of the most commonly recognized. This is because the carbonyl fundamental absorption is one of strongest peaks, which makes the overtone similarly relatively strong and observable. Also, the overtone for the carbonyl is usually easily seen since it occurs in a region of the spectrum (around 3400cm-1) where there are not too many other peaks which can obscure the overtone. Aromatic compounds frequently give relatively strong overtones in the area of 1700 cm-1 to 2000 cm-1 which can help identify the substitution pattern of groups on the ring.
NO! However, the overtones for the carbonyl absorption is one of the most commonly recognized. This is because the carbonyl fundamental absorption is one of strongest peaks, which makes the overtone similarly relatively strong and observable. Also, the overtone for the carbonyl is usually easily seen since it occurs in a region of the spectrum (around 3400cm-1) where there are not too many other peaks which can obscure the overtone. Aromatic compounds frequently give relatively strong overtones in the area of 1700 cm-1 to 2000 cm-1 which can help identify the substitution pattern of groups on the ring.
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