Reactive Intermediates: Carbocations, Carbanions and Radicals
SCIREON
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Reactive Intermediates: Carbocations, Carbanions and Radicals
11 просмотров · 12 дн. назад
SCIREON
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11 просмотров · 12 дн. назад
Is that carbon a carbocation, a carbanion or a radical, and where does the curved arrow start? This lesson builds the habit of reading electron counts before reaching for a memorised rule.
You will learn:
why a carbocation has six valence electrons and an empty p orbital
how a carbanion's lone pair makes it electron-rich
how homolytic bond cleavage gives a radical with one unpaired electron
the usual shapes: planar carbocation, often pyramidal carbanion
electrophiles vs nucleophiles, and why a curved arrow starts at the electron source
what an ambident nucleophile is
Includes a worked question and a pause-and-solve practice question.
Chapters
0:00 Charged carbon centres
0:26 Radicals and shape
1:02 Electron flow
1:39 Worked question
2:23 Pause and solve
Mentivora — Learn visually. Understand deeply.
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