Question: NiO adopts the cubic NaCl-type structure while PtO adopts the cooperite structure shown below. (a) What factor do you think is responsible for the differing

NiO adopts the cubic NaCl-type structure while PtO adopts the cooperite structure shown below.

(a) What factor do you think is responsible for the differing crystal chemistry preferences of these two compounds? Consider the splitting and occupation of the d orbitals for each compound.

(b) Which structure type do you think PdO will adopt? Would it be possible to tell from a magnetic measurement?

Ni NiO (rock salt) PtO (cooperite) O Pt

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