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Henry Rzepa's Blog

Henry Rzepa's Blog
Chemistry with a twist
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Published

I have mentioned Lewis a number of times in these posts; his suggestion of the shared electron covalent bond still underpins much chemical thinking. Take for example mechanistic speculations on the course of a reaction, a very common indulgence in almost all articles reporting such, and largely based on informed * arrow pushing*. This process is bound to follow the rules of reasonable Lewis structures for any putative intermediates.

Published

This story starts with a calixarene, a molecule (suitably adorned with substituents) frequently used as a host to entrap a guest and perchance make the guest do something interesting. Such a calixarene was at the heart of a recent story where an attempt was made to induce it to capture cyclobutadiene in its cavity.