Non-classical ion: Difference between revisions

Latest revision as of 12:41, 4 April 2014

Non-classical ion
DRAFT DEFINITION
Hyper-coordinated carbonium ion such as the penta-coordinated norbornyl cation. Note: Tri-coordinated carbenium ions are termed classical ions.
Related Term(s): Onium ion, Enium ion
Reference(s):
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'.}}
+{{Def|
+def=Hyper-coordinated carbonium ion such as the penta-coordinated [[wikipedia:norbornane|norbornyl]] cation.
-== Related Terms ==
+:Note: Tri-coordinated [[carbenium ion]]s are termed [[classical ion]]s.
+|rel=[[Onium ion]], [[Enium ion]]
+}}
-*[[Onium Ion]]
+[[Category:Ions]]
-*[[Enium Ions]]