Question
Download Solution PDFThe molecule that possesses S4 symmetry element is -
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Symmetry Elements in Molecules
- Symmetry elements in molecules include operations such as rotation (Cn), reflection (σ), and improper rotation (Sn).
- The S4 symmetry element refers to a fourfold improper rotation axis, combining a 90-degree rotation followed by a reflection through a plane perpendicular to the axis.
- Only certain molecular geometries allow for this type of symmetry.
EXPLANATION:
- Structure of allene:
- Allene (C3H4) possesses the S4 symmetry element due to its linear and symmetrical structure, allowing a 90-degree rotation followed by reflection.
- Ethylene (C2H4) and benzene (C6H6) do not possess the S4 symmetry element due to their molecular geometries.
CONCLUSION:
The correct answer is: Allene
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