Structure of 3-ethyl-3-isopropyl-2-methylpentane

To understand the structure of the compound 3-ethyl-3-isopropyl-2-methylpentane, let's break it down step by step.

1. Identify the parent chain:
The compound contains five carbon atoms, so the parent chain will have five carbons. Since it is a pentane derivative, the parent chain is a pentane.

2. Identify and locate the substituents:
The compound has three substituents: ethyl, isopropyl, and methyl. Let's locate each of them on the parent chain:
- The ethyl group is located at the third carbon atom.
- The isopropyl group is located at the third carbon atom as well.
- The methyl group is located at the second carbon atom.

3. Number the parent chain:
Number the parent chain starting from the end that gives the lowest possible numbers to the substituents. In this case, numbering from the right end gives the lowest numbers for all substituents.

4. Name and position the substituents:
Using the numbering, we can now name and position the substituents:
- The ethyl group is located at the 3rd carbon, so it is named as 3-ethyl.
- The isopropyl group is also located at the 3rd carbon, so it is named as 3-isopropyl.
- The methyl group is located at the 2nd carbon, so it is named as 2-methyl.

5. Combine the names:
Combine the names of the substituents in alphabetical order, separated by hyphens, with the parent chain name at the end:
3-ethyl-3-isopropyl-2-methylpentane

6. Structural representation:
The structural representation of 3-ethyl-3-isopropyl-2-methylpentane can be drawn as follows:
CH3 CH3
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CH3 - C - C - C - C - CH2 - CH3
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CH3 CH2CH3

In this structure, the five carbon atoms of the pentane chain are represented by horizontal lines, and the substituents are attached to the appropriate carbon atoms.

Summary:
The compound 3-ethyl-3-isopropyl-2-methylpentane consists of a pentane parent chain with three substituents: ethyl, isopropyl, and methyl. The substituents are located at the 3rd carbon atom (ethyl and isopropyl) and the 2nd carbon atom (methyl). The IUPAC name of the compound is derived by combining the names of the substituents in alphabetical order with the parent chain name, resulting in 3-ethyl-3-isopropyl-2-methylpentane.