Which of these eight compounds are expected to absorb radiation between 200 and 400 nm?
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Question “Which of these eight compounds are expected to absorb radiation between 200 and 400 nm?”
Answer
Conjugation of molecules is the key to radiation. Conjugation is the process of combining different single and double bonds in a molecule.
Example of conjugation
High radiation absorption is possible for compounds with more conjugated bonds. Radiation above 200nm is absorbed by conjugated dienes. The compound 2 contains 2 conjugated bonds, as shown in the previous structures. It absorbs radiation at 200nm. Compound 1 only has one double bond. This will result in a lower radiation value.
There is no conjugated second bond. Radiation will therefore not be visible between 200nm to 400nm.
The structure above does not contain a conjugated double bond. The radiation between 200nm to 400nm will therefore not be seen.
The structure above does not have a double bond, and there is no conjugation. Radiation will therefore not be visible between 200nm to 400nm.
The above structure does not show any conjugation. The radiation between 200nm to 400nm will therefore not be seen.
The above structure does not show any conjugation. The radiation between 200nm to 400nm will therefore not be seen.
The structure above contains double-conjugated conjugated bonds. This compound absorbs radiation between 200 nm and 400nm.
Ans:
These compounds are expected to be sensitive to radiation from 200nm to 400nm
Conclusion
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