Normal Mode Coeffiecient Mass Weighting

[Allyson Leicht]

Attempting to use the normal mode coefficients as a means to generate new coordinates while remaining at the transisition state. 

I have run into the issue where in order to make these displacements, I need to unmass weight the coefficients, but cannot find any information on how the coefficients are weighted to begin with. 

Essentially: 

new_coord = ts_coord + c * q * y 

where c = coefficient of a particular normal mode ( in (g/mol)^-1/2)

q = displacement in Angstroms

y = unweighting factor (in (g/mol)^1/2)

What is the factor (1/y) used to weight each coefficient of each normal mode? 

Thanks!