how many possible isomers in hexane.... and how to know how many isomers in structure..?
Isomers of Hexane Hexane has five isomers: Hexane, CH3CH2CH2CH2CH2CH3, a straight chain of six carbon atoms. 2-Methylpentane (Isohexane), CH3CH(CH3)CH2CH2CH3, a five-carbon chain with one methyl branch on the second. 3-Methylpentane, CH3CH2CH(CH3)CH2CH3, a five-carbon chain with one methyl branch on the third. 2,3-Dimethylbutane, CH3CH(CH3)CH(CH3)CH3, a four-carbon chain with one methyl branch on the second and third. 2,2-Dimethylbutane (neohexane), CH3C(CH3)2CH2CH3, a four-carbon chain with two methyl branches on the second. There is no direct trick to get the structural isomers of an organic compound. ... First step is to find out the Degree of Unsaturation of the given organic compound. Formula for Degree Of Unsaturation (DU) : Now Let us take some examples: Find the structural isomers of C3H8O. Solution: n1=3, n2=8 , So DU=(2n1-n2+2)/2 = 0 .
