{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Ch_322a_6.019 - Solvent Effects on the SN1 Reaction Solvent...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Solvent Effects on the S N 1 Reaction Solvent polarity typically influences the rate of chemical reactions where the starting and transition states differ significantly in polar character . The S N 1 reaction usually has a transition state that is much more polar than the starting state. CH 3 -C CH 3 CH 3 Cl CH 3 -C CH 3 CH 3 Cl ! + !" starting state charges are being formed in the TS More Polar Less Polar To determine how a change in solvent affects the rate of a reaction, it is necessary to determine the change in energy on both the starting and transition states. If the solvent change decreases the ! G , the rate increases.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Change from a Less Polar to a More Polar Solvent When there is a change from a less polar to a more polar solvent , the rate of an S N 1 reaction generally increases because the energy of the more polar transition state decreases more than the energy of the less polar starting state. R-Cl Cl R ! + !" R + + Cl - less polar more polar
Background image of page 2
Free Energy Changes for the Rate-Determining Step of an S N
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}