| Abstract: A d-f heterodinuclear complexes [Fe(phen)3]2[FeCe(tiron)3]·6H2O (tiron=C6H2O8S3) was isolated from the hydrothermal reaction of Ce(NO3)3·6H2O, Fe(NO3)3·9H2O, 1,10-phenanthroline and 4,5-dihydroxybenzene-1,3-disul-fonate, and characterized by elemental analysis, IR, UV, TG and single-crystal X-ray diffraction analysis. The complex crystallized in the cubic system, space group P213 with the cell parameters: a=2.194 09(4) nm, V=10.562 4(3) nm3, Z=4, F(000)=4 648, R1=0.045 1, wR2=0.107 7, S=1.07. In [FeCe(tiron)3]6- unit with symmetry of C3 was revealed that the Fe3+ ion is in a FeO6 distorted trigonal anti-prism coordination polyhedron completed by six phenolate O atoms from three tiron- ligands, and Ce3+ in a CeO6 distorted trigonal anti-prism coordination polyhedron completed by three phenolate μ2-O atoms and three O atoms from sulfonic group of three ligands. The [Fe(phen)3]3+ cations and [FeCe(tiron)3]6- anions via π-π interaction between phen ligands and electric attraction between cations and anions was assembled into pseudo Host-guest type supramolecule in bougainvillea glabra-like. The magnetic properties of the complex has been determined in the temperature range 2～300 K, indicating that the antiferro-magnetic interaction between the central Ce(Ⅲ)-Fe(Ⅲ) ions. CCDC: 728509. |
