Explain 'double bond equivalents' and its significance.

Asked by  | 5th Mar, 2012, 10:18: AM

Expert Answer:

Consider a general organic compound having molecular formula as CaHbNcOdXe ,where,C-Carbon,

H-Hydrogen,

N-Nitrogen,

O-Oxygen,

X-Halogen.

Significance of double bond equivalence:

Using the Double Bond Equivalence we can find the number of the pi bonds present in the compound and in most of the cases also predict the exact structural formula of that compound.

D.B.E = (a+1)-{(b+e-c)/2} [D.B.E :- Double Bond Equivalence]

Ex.

(1)   D.B.E for CH4 is 0 hence no pi bond is present.

(2)   D.B.E for C2H5O is 0 hence no pi bond is present.

Answered by  | 5th Mar, 2012, 10:33: AM

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