Questions | Mimamsa 2021
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Chemistry Brief Thought 1


“Interesting right? Now, for the cool part, let’s perform some experiments.”

“First, we shine light on the molecule. On irradiating the rotaxane (1) with 365 nm light (solvent
is deuterated DMSO), carbon dioxide is released. The 1H-NMR spectrum of the product
rotaxane (2) shows the presence of an –OH group.
What do you think will happen to the molecule?
Will the ring bind to region A or B of the rotaxane?”

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