Zinc Blende crystal structure

The zinc blende crystal structure is the structure named for the low-temperature phase of the ceramic ZnS. It is cubic with two interpenetrating FCC lattices. One at the normal position and one at (1/4,1/4,1/4). Another way to think of it is an FCC lattice with half of its tetrahedral interstitials filled. The structure has 8 atoms per unit cell (4 formula units of ZnS). The lattice parameter can be found by noticing that atoms touch along body diagonal. 1/4*sqrt(d)*a=R_cation+R_anion. The compound has another phase, wurtzite, that is hexagonal and stable at high-temperature.

[@harshitagoyal7134]

I literally can't even start to express how awesome this video has been!!

[@TaylorSparks]

lol. woohoo!! So glad it helped!

[@harshitagoyal7134]

THIS IS THE ABSOLUTE BEST

[@thecreativa5153]

watching from India . thanks a lot for this cleared my doubt ,,,

[@platones9667]

hey, thanks for the vid. zinc blende has rc/ra = 0.326 and it has tetrahedral geometry, as you said in the video. But afterwards, you were talking about how it's a cubic crystal structure. But cubic ones are stated as 0.732-1?? is it both at the same time or sth?

[@reenadevi551]

Woohoo so this is called awsm crystal clear explanation... Teacher by birth?

[@TaylorSparks]

Lol. It's in my genes!

[@Scienceologist]

What is the structure of the zn unit cell?

[@c.b.pandey5122]

Sir Please upload a video regarding ZnS wurtzite structure.

[@TaylorSparks]

we cover that around 4:00 minutes in ;)

[@harshitagoyal7134]

thank you soooooooo much

[@ayushmansanjeev5487]

👍