What Makes A Good Nucleophile? (1)
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- เผยแพร่เมื่อ 5 ก.ย. 2024
- What makes a good nucleophile? Two key factors (of 4) are covered here. The conjugate base is always a better nucleophile, and nucleophilicity increases as you go to the left along the periodic table.
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So, in short...
1) The conjugate base of the given species (subtract 1 H) is the better nucleophile.
2) L to R electronegativity increases but Nucleophilicity decreases.
Thanks sir
5:30 is wrong. Oxygen has 3 bonds and 1 lone pair. 3+2=5. O should have 6 6-5 is +1 formal charge
The author has written a C in the methylate ion so it looks like an O. Formal charge -1 for carbon should be correct...
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if higher electron density (more electrons tot give away) makes a good nucleophile, then why is fluorine the least nucleophilic in the second factor? was following along till that, now I/m confused. what factor do we look for then because both factors contradict each other.
because flourine is most electronegative so it does not want to five up its electrons. (i realize this was asked a long time ago. just thought you might still want an answer lol )
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I believe the OH3 should have a positive charge not a negative charge. Correct me if im wrong. Also does that mean its not a nucleophile since it has a positive charge?
That's actually (-)CH3. Badly drawn. Thanks
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Does nucleophilicity increase or decrease down a group (eg. F- vs I-)?
I think since from the Left to Right is decreases then we can assume that down to up is the same, so nucleophilicity increases down so F- is less nucleophlic to I-
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