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Chemical compounds that contain halogens (group 17 in the Periodic Table) as part of their chemical structure. This tag should only be applied where the halide group is one of the main focuses of the question.

1
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group, and (d) solvent effects. Halides are able to function, to varying degrees, as both good leaving groups and strong nucleophiles. In protic solvents, negative charges are stabilized by the $\ce … . Consequently, in protic solvents, the relative nucleophilicity of the halides is generally given as $\ce{I- > Br- > Cl- > F-}$. In aprotic solvents, the reactivity is precisely the opposite. Hence, the …
answered Nov 5 '13 by Greg E.
6
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At constant pressure and temperature, the spontaneity of all chemical reactions is controlled by the difference in Gibbs free energy ($\Delta G$), as described by the following equation: $\Delta G = …
answered Aug 9 '13 by Greg E.
17
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The halogens, particularly in their diatomic free states and within various oxoacids, are strong oxidizing agents by virtue of their high electronegativities, electron affinities, and reduction potent …
answered Jun 13 '13 by Greg E.
8
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The nature of the substrate (in particular the degree of substitution of the α-carbon) is of principal importance in determining which mechanism predominates. Generally, $\mathrm{S_N1}$ and $\mathrm{E …
answered Feb 1 '13 by Greg E.