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Cyaphide is the phosphorous analog to the cyanide ion, with phosphorous replacing nitrogen. a) Draw the...

Cyaphide is the phosphorous analog to the cyanide ion, with phosphorous replacing nitrogen. a) Draw the Lewis dot structure for the cyaphide ion and give the formal charges on each atom. Are the formal charges consistent with electronegativity? b) Draw a molecular orbital energy diagram for the cyaphide ion. Give the bond order. Is the bond order consistent with the Lewis structure?

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Answer #1

a) the lewis structure of cyaphide ion (PC-) will be

There will be negative charge on Carbon, so formal charge on carbon is -1 while on phosphorous will be zero.

Yes it is consistent with the electronegativity as carbon is more electronegative then phosphorous.

b) The MO diagrams will be

It shows the bond order is three consistent with lewis structure

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