Why should the 1,4-addition product be more stable than the 1,2-addition product? Br H II H₂C=CH-CH-CH₂ 1,2-addition product Br H₂C-CH:CH-CH₂ 1,4-addition product Because the two tetracoordinate sp³-hybridized carbons are farther apart in the 1,4 isomer reducting steric crowding. Because it is a disubstituted alkene and the 1,2 isomer is a monosubstituted alkene. O It shouldn't be more stable because it is a primary alkyl bromide and the 1,4 isomer is a secondant alloul ʼn
Electronic Effects
The effect of electrons that are located in the chemical bonds within the atoms of the molecule is termed an electronic effect. The electronic effect is also explained as the effect through which the reactivity of the compound in one portion is controlled by the electron repulsion or attraction producing in another portion of the molecule.
Drawing Resonance Forms
In organic chemistry, resonance may be a mental exercise that illustrates the delocalization of electrons inside molecules within the valence bond theory of octet bonding. It entails creating several Lewis structures that, when combined, reflect the molecule's entire electronic structure. One Lewis diagram cannot explain the bonding (lone pair, double bond, octet) elaborately. A hybrid describes a combination of possible resonance structures that represents the entire delocalization of electrons within the molecule.
Using Molecular Structure To Predict Equilibrium
Equilibrium does not always imply an equal presence of reactants and products. This signifies that the reaction reaches a point when reactant and product quantities remain constant as the rate of forward and backward reaction is the same. Molecular structures of various compounds can help in predicting equilibrium.
The addition reactions to alkene include 1,2-addition and 1,4-addition.
1,2-addition reactions involve the addition of two reactants across the double bond in an "head-to-head" manner, resulting in the formation of an alcohol or an alkyl halide.
1,4-addition reactions involve the addition of two reactants across the double bond in a "tail-to-tail" manner, resulting in the formation of a 1,4-addition product, such as a 1,4-diol or a 1,4-diadduct.
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