Chlorite hybridization

[sacjumpman]

What is the central Chlorines hybridization in chlorite (ClO2-)?

Now Kaplan says sp2d, but this is semi unclear.

I had no luck figuring it out with my textbook or multiple google searches.

Thanks.

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[dsony2284]

first i would use the periodic table to determine the group numbers (valence electrons) for each Cl, O and add one for the -. The total is 20 electrons. I drew out the structure to have 20 electrons including four for the bonds. There are 4 things bonded to the Cl, 2 bonds to the Os and 2 pairs of electrons. This is would be sp3 or in this case sp2d....i ve actually never seen sp2d before. Hope that is right, someone please correct me if needed

 

[sacjumpman]

first i would use the periodic table to determine the group numbers (valence electrons) for each Cl, O and add one for the -. The total is 20 electrons. I drew out the structure to have 20 electrons including four for the bonds. There are 4 things bonded to the Cl, 2 bonds to the Os and 2 pairs of electrons. This is would be sp3 or in this case sp2d....i ve actually never seen sp2d before. Hope that is right, someone please correct me if needed

Thanks. Yeah, that's exactly what I did. Several times. There are two possible resonance structures, also.

But either way, I'm not sure exactly why it takes on sp2d as opposed to sp3.

Kaplan attempts to explain it, but I don't follow completely.

 

[dsony2284]

thats interesting, was there by any chance an answer option for sp3?

 

[sacjumpman]

Yeah there was.

But the question wasn't asking about chlorite. It was asking about another compound.

However, in the answer key, they give an extended explanation of hybridization and chlorite is mentioned.

It is Kaplan Gchem Subject Test 1, #19 if you wanted to check it out. But look in the solution, not just the problem.