M?ssbauer Spectroscopic Study andMagnetic Investigation of Iron(III) Complexes on a DendrimericBasis

摘要

The functionalization of the molecular surface of various dendrimer generations with a phosphorous core and external amine groups is obtained by converting those amine groups into the corresponding imines of salicylaldehyde creating multiple coordination sites for the iron atoms. Treatment with iron(III) chloride yields multinuclear iron(III) complexes on a dendrimeric basis.The obtained multinuclear molecular systems exhibit extremely high total spin values. The influence of the generation growth on this type of coordination compounds is investigated by M?ssbauer spectroscopy and SQUIDmagnetometry.