Non-classical ion: Difference between revisions

Revision as of 14:35, 25 December 2005

Non-classical ion
DRAFT DEFINITION
A penta-coordinated carbonium ion.
Considered between 2004 and 2006 but not included in the 2006 PAC submission
This is an unofficial draft definition presented for information and comment. Recommended terms \| Full list of terms

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-{{DefName|A hyper-coordinated carbonium ion (see [[Onium Ion]]) such as the penta-coordinated norbornyl cation named non-classical by S. Winstein. The term derives from a cornerstone of the classical theory of structural chemistry since the time of Kekul???????????? in the 1860s that stated that carbon could bind at most four other atoms (tetra-coordination). Tri-coordinated carbenium ions (see [[Enium Ion]]) are consequently termed 'Classical Ions'.}}
+{{DefName|
+A penta-coordinated [[carbonium ion]].
+}}
 == Related Terms ==
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 *[[Enium Ion]]
+*[[Classical Ion]]
+[[Category:Ions]]