Desorption Energies & Alkyl Chain Length

Alkyl derivatives:

Large functional group

contribution (at n=0) &

dampened chain length dep.

Energy penalty per CH2:

1-2 kcal/mol in order

1-Br < acid < 2-Br-acid

Competition between

functional group and

alkyl chain interactions

Short range van der Waals

forces between alkyl chains

easily disturbed by functional

group requirements

Previous slide

Next slide

Back to first slide

View graphic version