Polarizability
my home upper InterStellar Chem grain density Abundance Table Dissociate energy Polarizability Proton affinity Charge trans rate Ionize potential rate coeff

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Mean static polarizability alpha of some atoms/molecules (from Tab 3.1 of Duley & Williams, 1984inch.book.....D)

The unit of alpha is 10^-24 cm^3. The given values are averages of the paralell alpha|| and perpendicular alpha|- components: alpha = (alpha|| + 2*alpha|-) /3.

Species   alpha  Species   alpha  Species   alpha  Species   alpha 
 0.667   H2   0.79   H2  1.40   C2H2   3.33   
He   0.20   N2   1.76   CO2   2.65   NH3   2.26   
 1.13   O2   1.58   SO2   4.27   CH4   2.60   
 0.77   CO   1.95   OCS   5.2   C2H6   4.47   
Na   24.75   CN   2.59   HNC   2.46       
 42.4       HCN   2.59       
 

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