What do the brackets mean- chemistry?

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Darkness_o
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#1
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#1
What does it mean when your they write the structure if the compund like this- (CH3)3CCH(CH3)2 OR CH3(CH2)5CH3
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Br0wnies
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#2
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It just means that there are 3 parts of that molecule. Like three CH3 molecules etc.
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scimus63
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#3
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#3
the brackets indicate sidechains
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bl0bf1sh
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#4
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(CH3)3CCH(CH3)2
there are 3 methyl groups attached to the C that comes after the (CH3)3
and there are 2 methyl groups, as well as 1 H, attached to the C after that

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CH3(CH2)5CH3
the (CH2)5 is a shorthand way of writing CH2CH2CH2CH2CH2; it means there is a chain of 5 carbons, each with 2 Hs attached, and at each end of this 5-carbon chain there is one methyl (CH3) group; the chain is 1+5+1 = 7 carbons in length

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