David R. Bell, Jeffrey K. Weber, et al.
PNAS
μ-Oxo-bis[protoporphyrin IX dimethyl ester iorn(III)] gave magnetic susceptibility data from 1·5 to 293 K which fit a model dimer with strong anti-ferromagnctic exchange coupling (2J 380 K) between highspin iron(III) atoms.
David R. Bell, Jeffrey K. Weber, et al.
PNAS
Jesus J. Caban, Noah Lee, et al.
ISBI 2009
Tomer Kol, Gal Shachor, et al.
SPIE Medical Imaging 2004
P.S. Bagus, C.J. Nelin, et al.
Journal of Electron Spectroscopy and Related Phenomena