how to compare C double bond strength in alkenes
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Bonding and Structure:
• Carbons in the double bond of butene are sp2 hybridized.
• Side on p-p orbital overlap creates a π-bond.
• Angles around the carbons in the double bond are ~ 120º. Thus, all of the
atoms bonded to the sp2
hybridized carbon lie in a plane.
Carbon-Carbon double bond length is ~ 1.34 Å (single bonds in alkane
are ~ 1.54 Å.
H3C H
CH3 H3C
H
H3C
H
H
CH3
H
H
CH3
90° 90°
• In order to interconvert between the isomers with the methyl groups on
the same, and opposite sides, the double bond must be broken.
• As a result the two isomers do not interconvert at ordinary temperatures.
• Carbons in the double bond of butene are sp2 hybridized.
• Side on p-p orbital overlap creates a π-bond.
• Angles around the carbons in the double bond are ~ 120º. Thus, all of the
atoms bonded to the sp2
hybridized carbon lie in a plane.
Carbon-Carbon double bond length is ~ 1.34 Å (single bonds in alkane
are ~ 1.54 Å.
H3C H
CH3 H3C
H
H3C
H
H
CH3
H
H
CH3
90° 90°
• In order to interconvert between the isomers with the methyl groups on
the same, and opposite sides, the double bond must be broken.
• As a result the two isomers do not interconvert at ordinary temperatures.
aradhyasinghi:
I didn't asked that
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