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Nucleophile strength?

Posted: Sat Feb 27, 2016 6:35 pm
by Ishan Ayyala 2K
Are there varying strengths for nucleophiles? Are triple bonds stronger nucleophiles than double or single bonds?

Re: Nucleophile strength?

Posted: Sat Feb 27, 2016 7:03 pm
by James Cheng 3I
Yes, there are varying strengths for nucleophiles. In general, the more electronegative something is, the weaker its nuceophile strength will be. Also, as electron density increases, so does its nucleophile properties.

Re: Nucleophile strength?

Posted: Sun Feb 28, 2016 1:53 pm
by Rachel Lipman
In a question of say "which is more nucleophilic" or say "which is the stronger nucleophile" you must look at polarizability of the elements in question. The higher the polarizability (the more electrons, the more free flowing) the stronger the nucleophile.