Do C.C. bonds have expanded octet?
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Do C.C. bonds have expanded octet?
In all the examples provided so far, it seems that coordinate covalent bonds with transition metals always form expanded octets. Is this because transition metals are in the d-block on the periodic table, or is it because their "sea of electrons" nature means that it is easier for them to form bonds? I know that p-block elements in row 3 or later can form expanded octets so I was wondering if the same concept goes for d-block elements.
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Re: Do C.C. bonds have expanded octet?
I think that the professor mentioned that most transition metals are more stable with an expanded octet, just like some p-block elements. Additionally, the transition metal had an expanded octet in each example he provided.
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Re: Do C.C. bonds have expanded octet?
Elements row 3 and below are capable of expanded octets. I believe that transition metals with a d-subshell are able to have expanded octets, and tend to in coordinate covalent bonds.
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Re: Do C.C. bonds have expanded octet?
As Dr. Lavelle mentioned in the earlier lectures, the octet rule is just a guideline. Most elements outside of the 2nd row of the periodic table can accomodate an expanded octet and don't need to follow the octet rule. The octet rule is only a strict rule for elements including carbon, nitrogen, oxygen, and fluorine. Because d-block elements aren't a part of the 2nd row, then they can be expanded.
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