Welcome Guest Search | Active Topics |

Tag as favorite
Nucleophilicity strength Trend
Options
Previous Topic Next Topic
Ryan_5248
#1 Posted : Wednesday, July 01, 2020 6:25:34 PM
Rank: Newbie

Groups: Registered
Joined: 4/8/2020
Posts: 5

Thanks: 0 times
Was thanked: 0 time(s) in 0 post(s)
Hi, In the CC, on page 159 it says nucleophilicity usually increases down a column of the periodic table (usually with exceptions). So I got that: down column = more nucleophilic.

However, it also says that the basicity/nucleophilicity increases up the column for halides. This is saying something completely different than the last trend.

My question is: Does nucleophilicty increase down a column with the exception of halides (which are backwards)?
Back to top
Report?
INSTR_Katerina_102
#2 Posted : Thursday, July 02, 2020 1:47:06 PM
Rank: Advanced Member

Groups: Registered
Joined: 6/24/2019
Posts: 250

Thanks: 0 times
Was thanked: 0 time(s) in 0 post(s)
Hi,

Essentially yes, halides can be weird though as they are solvent dependant.

We have some longer answers in the post Factors Affecting Sn2 reactivity posted by Oliva, try to check there if you would like a more detailed answer.

Essentially nucleophilic trends can be conflicting and the key is knowing what is the predominant factor when.

I hope this helps!
Back to top
Report?
Users browsing this topic
Guest (2)
Tag as favorite
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Clean Slate theme by Jaben Cargman (Tiny Gecko)
Powered by YAF | YAF © 2003-2009, Yet Another Forum.NET
This page was generated in 0.071 seconds.