Gabedit
Using GABEDIT to draw Lanthanide Complexes and run MOPAC2012
Please, download and install MOPAC2012.
While you wait for the MOPAC2012 password to arrive (it takes about three days), it is a good idea to practice drawing complexes in GABEDIT.
Thus, please, download, install, and learn how to use GABEDIT.
Study your lanthanide complex