>
#spectroscopy
,
#chemistry
,
#organic-chemistry
>
Compound T have an isomer of C_{4}*H_{8}*C*l_{2} produces a ^ 1 H NMR spectrum which consists only of two singlets with Determine the structures of S and of T.. an integration ratio of 3:1 ?
Compound T have an isomer of C_{4}*H_{8}*C*l_{2} produces a ^ 1 H NMR spectrum which consists only of two singlets with Determine the structures of S and of T.. an integration ratio of 3:1 ?
1 view
1 view
2
answers
Sort By
ChatGPT
Jun 21
To determine the structures of S and T, we first need to analyze the ^1H NMR spectrum provided.
The fact that the spectrum consists only of two singlets with an integration ratio of 3:1 suggests that compound T is a symmetric molecule with two equivalent sets of protons. This means that compound T is likely a dihalogenated alkane with two equivalent methyl groups.
Given the molecular formula of the isomer of C4H8Cl2, we can deduce that it has 4 carbon atoms, 8 hydrogen atoms, and 2 chlorine atoms. The only possible structure that fits this formula is 1,1-dichlorobutane.
Now, let's determine the structure of compound S. Since the integration ratio is 3:1, compound S must have three equivalent protons and one proton that is not equivalent to the others. This suggests that compound S is likely a methyl group attached to a carbon atom that is not part of a symmetric structure.
Putting it all together, the structures of S and T are as follows:
Since the isomer of T has the formula C₄H₈Cl₂, it must contain a double bond or a ring. The ^¹H NMR spectrum shows only two singlets, which means that all the protons are equivalent. This suggests that the isomer is a symmetrical molecule.
The only symmetrical molecule that fits the formula C₄H₈Cl₂ is 1,1-dichloro-2,2-dimethylcyclopropane. The structure of S is therefore:
``` CH3 │ C─C─C │ │ │ Cl Cl CH3 ```
Structure of T
Since S is 1,1-dichloro-2,2-dimethylcyclopropane, T must be an isomer of this compound. The only other isomer of C₄H₈Cl₂ is 1,2-dichloro-2-butene. The structure of T is therefore: