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Grade 12th passOrganic Chemistry

the possible distance between two tetrahedral voidsin ccp unit cell

Profile image of mandeep
8 Years agoGrade 12th pass
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2 Answers

Profile image of Ravleen Kaur
7 Years ago
The distance between any two successive (adjacent) tetrahedral void. The angle between body diagonal and an edge is cos inverse of √3a/4, so the projection of the line on an edge is a/4, Similarly the other tetrahedral void will also bea/4 away from its vertex on this edge. So the distance between these two isa−a/4-a/4=a/2
Profile image of Ravleen Kaur
7 Years ago
The distance between any two successive (adjacent) tetrahedral void. The angle between body diagonal and an edge is cos inverse of √3a/4, so the projection of the line on an edge is a/4, Similarly the other tetrahedral void will also bea/4 away from its vertex on this edge. So the distance between these two isa−a/4-a/4=a/2