Obviously octahedral is by far the most likely answer to any question asked about CN6 complexes, but how would you tell if it was trigonal prismatic?
My notes say that [Zr(Me)6]2- is trig. pris. and I'm answering an exam question asking for [Ni(CN)6]3- geometry and to explain in a few words... As it asks to explain, I kinda wonder if its an unusual answer, can't see why octahedral would need explaining...
Anyway just wondering if there are any rule of thumbs for this.
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Posted this in undergrad section but no replies, so posting here now
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