Acknowledgements

1) Dalton:

The modules transform_nc_to_nm and vib_analysis are both to a certain extent derived from similar 
or corresponding functionality in Dalton, Copyright (C) 2018 by the authors of Dalton.  
Please see README, the documentation or the source files for more info on this

2) John Kendrick for useful discussion on IR spectroscpy

3) Jógvan Magnus Haugaard Olsen for discussion, technical help and other guidance

4) Orian Louant and Per-Olof Årstand

5) Gohlke's elements.py
