Octanuclear heterometallic Fe-III-Ce-IV pivalate clusters: From a close {Fe4Ce4(mu(4)-O)(4)} cage to an open {Fe4Ce4(mu(4)-O)(2)(mu(3)-O)(2)} core
Journal article, 2021

Ultrasonic irradiation of trinuclear [Fe3O(O2CCMe3)(6)(H2O)(3)]Me(3)CCO(2)2(Me3CCO2H) or hexanuclear [Fe6O2 (OH)(2)(O2CCMe3)(12)] pivalate precursors with Ce(NO3)(6)6H(2)O, NaN3 and triethanolamine (H3tea) in MeOH/ MeCN solution results in the synthesis of two new octanuclear Fe-III-Ce-IV clusters formulated as [Fe4Ce4O4 (O2CCMe3)(4)(tea)(4)(N-3)(4)(MeOH)(4)].MeOH (1) and [Fe4Ce4O4(O2CCMe3)(6)(tea)(4)(N-3)(2)(MeOH)(2)]center dot 3(MeOH) (2). The spectroscopic and thermal properties of these compounds corroborate oxidation states and formula. Single crystal X-ray diffraction analysis revealed that the metal atoms in clusters 1 and 2 are organized in unprecedented close {Fe4Ce4(mu(4)-O)(4)} and open {Fe4Ce4(mu(4)-O)(2)(mu(3)-O)(2)} cores, respectively. The topology of these cores has not been observed before in FeIII-CeIV chemistry.

Aminopolyalcohol ligand

Heterometallic 3d-4f compound

Octanuclear iron(III)-cerium(IV) cluster



Svetlana G. Baca

Institute of Applied Physics Academy of Sciences of Moldava

Francoise Mystere Amombo Noa

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry

Lars Öhrström

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry

Inorganica Chimica Acta

0020-1693 (ISSN)

Vol. 515 120038

Subject Categories

Inorganic Chemistry

Materials Chemistry

Theoretical Chemistry



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1/8/2021 5