How we can distinguish between hexagonal and monoclinic unit cells ?

No comments

In case of Hexagonal unit cell we have two sides equal , and two angles equal to 90 degrees(right angles) but the third angle is of 120 degrees.

a = b ≠ c, and similarly α = β = 90 ̊, ɣ = 120 ̊

But in case of monoclinic unit cell we have unequal sides but the two right angles are present.

a ≠ b ≠ c ,  α = ɣ = 90 ̊ and ɣ ≠ 90

In case of hexagonal the third angle was fixed to 120 ̊ only but in monoclinic it is not fixed, it can be any but not 90 ̊ .


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.