Modeling lanthanide complexes: Sparkle/AM1 parameters for ytterbium (III)
Ricardo O. Freire, Gerd B. Rocha, Alfredo M. Simas
Journal of Computational Chemistry, 2005, 26 (14), pp 1524-1528
Supplementary information available.
Example:
Diaqua-bis(nitrato-O,O')-(2,2':6',2''-terpyridine)-ytterbium, CCDC: EFIZUO
MOPAC2009 input and output files: Yb_(EFIZUO).mop Yb_(EFIZUO).arc