CF4, CH4, CH2Br2, CH2Cl2, CHCl3, CH3Br, CH3I
Some electronegativity values that you may find useful:
An increase in oxidation state causes the binding energy to increase due to a decrease in the screening of the inner electrons by the core electrons. Electronegative elements decrease the electron density around the carbon atom (thus oxidising ...
This solution discusses binding energies.