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Stereoisomers ( different arrangements o...

Stereoisomers ( different arrangements of atoms) that can be converted into one another by roatation about single bonds are called

A

enantiomers

B

conformers

C

diasteromers

D

aromers

Text Solution

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The correct Answer is:
B
Also called conformations or rotamers, they are temporary molecular shapes that result form the rotations of group about single bonds. An analysis of the energy changes that a molecule undergoes as group rotate about single bonds is called conformational anaysis. The term conformer is normally used for low energy conformations.
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Conformations are different arragements of atoms htat are interconverted by rotation about single bond. IN eclipsed conformation, the C-H bond on one carbon is directly aligned with C-H bond on the adjacent carbon. In staggered conformation, the C-H bond on one carbon bisect the H-C-H bond angle on adjacent carbon. The angle that seperates a bond on one atom form a bond on a adjacent atom is called a dihedral angle. A staggered conformation with two larger groups 180^(@) from each other is called anti. A staggered conformation with two larger group 60^(@) from each other is called gauche Identify the most conformer of 2-fluoro ethanol among the following:

Conformations are different arragements of atoms htat are interconverted by rotation about single bond. IN eclipsed conformation, the C-H bond on one carbon is directly aligned with C-H bond on the adjacent carbon. In staggered conformation, the C-H bond on one carbon bisect the H-C-H bond angle on adjacent carbon. The angle that seperates a bond on one atom form a bond on a adjacent atom is called a dihedral angle. A staggered conformation with two larger groups 180^(@) from each other is called anti. A staggered conformation with two larger group 60^(@) from each other is called gauche Which of the following is gauche conformer?

Knowledge Check

  • The isomers that can be interconverted through rotation around a single bond are:

    A
    Conformers
    B
    Diastereomers
    C
    Enantiomers
    D
    Positional isomerisms

  • Isomers which can be interconverted through rotation around a single bond are :

    A
    conformers
    B
    diastereomers
    C
    enantiomers
    D
    positional isomers

  • Spatial arrangement of atoms which can be converted one another by rotation around a C-C single bond in alkane is termed as conformers. In the above context one must remember that the rotation around the C-C single bond is

    A
    complete free
    B
    hindered by an energy barrier of 1- 100 kcal
    C
    hindered by an energy barrier of 1- 20 KJ/ol
    D
    hindered by an energy barrier of 1-20 kcal

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    Conformations are different arragements of atoms htat are interconverted by rotation about single bond. IN eclipsed conformation, the C-H bond on one carbon is directly aligned with C-H bond on the adjacent carbon. In staggered conformation, the C-H bond on one carbon bisect the H-C-H bond angle on adjacent carbon. The angle that seperates a bond on one atom form a bond on a adjacent atom is called a dihedral angle. A staggered conformation with two larger groups 180^(@) from each other is called anti. A staggered conformation with two larger group 60^(@) from each other is called gauche Which of the following conformer of butane has minimum energy?

    Isomers which can be interconverted through rotation around a single bond are:

    Isomers which can be interconverted through rotation around a single bond are

    Isomers which can be interconverted through rotation around a single bond are

    The isomers which can be converted into another forms by rotations of the molecules around single bond are

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