What is the degree of unsaturation of a cube?
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Cubane(C8H8C8H8) appears to possess six rings, corresponding to the six faces of a cube. However, in the case of hydrocarbons, you can use a simple trick- count the deficiency of hydrogens as compared to saturated open chain alkanes for given number of carbons and then DBE is half of this deficiency.
Here, compare with C8H18C8H18, octane and then a deficiency in hydrogens in cubane is 10 so, DBE=10/2=5DBE=10/2=5.
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Cubane(C8H8C8H8) appears to possess six rings, corresponding to the six faces of a cube. However, in the case of hydrocarbons, you can use a simple trick- count the deficiency of hydrogens as compared to saturated open chain alkanes for given number of carbons and then DBE is half of this deficiency.
Here, compare with C8H18C8H18, octane and then a deficiency in hydrogens in cubane is 10 so, DBE=10/2=5DBE=10/2=5.
hope u understand plz mark as brain list hard one
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DBE or double bond equivalent a.k.a LU or level of unsaturation is the number of unsaturations present in a organic molecule. The termunsaturation mean a double bond or a ring system. For instance , in benzene there are 3 double bonds and 1 ring which gives us 4 DBE. Moreover a tripple bond can be regarded as DBE=2.
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