Question
Download Solution PDFWhich primitive unit cell has unequal edge lengths (a ≠ b ≠ c) and all axial angles different from 90°?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Triclinic primitive unit cell has dimensions as, a ≠ b ≠ c and α ≠ β ≠ 90°.
Among the seven basic or primitive crystalline systems, the triclinic system is most unsymmetrical, the triclinic. In other cases, edge length and axial angles are given as follows:
Hexagonal: a = b ≠ c and α = β = 90°, γ = 120°
Monoclinic: a ≠ b ≠ c and α = γ = 90°, β ≠ 90°
Tetragonal: a ≠ b ≠ c and α = β = γ = 90°
- The parameters of all other crystal systems are given below:
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