| Conţinutul numărului revistei |
| Articolul precedent |
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 SM ISO690:2012BACA, Svetlana, AMOMBO NOA, Francoise M., OHRSTROM, Lars. Octanuclear heterometallic FeIII-CeIV pivalate clusters: From a close {Fe4Ce4(μ4-O)4} cage to an open {Fe4Ce4(μ4-O)2(μ3-O)2} core. In: Inorganica Chimica Acta, 2021, vol. 515, p. 0. ISSN 0020-1693. DOI: https://doi.org/10.1016/j.ica.2020.120038 |
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  Inorganica Chimica Acta |
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| Volumul 515 / 2021 / ISSN 0020-1693 | ||||||
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| DOI:https://doi.org/10.1016/j.ica.2020.120038 | ||||||
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Ultrasonic irradiation of trinuclear [Fe3O(O2CCMe3)6(H2O)3]Me3CCO2·2(Me3CCO2H) or hexanuclear [Fe6O2(OH)2(O2CCMe3)12] pivalate precursors with Ce(NO3)6·6H2O, NaN3 and triethanolamine (H3tea) in MeOH/MeCN solution results in the synthesis of two new octanuclear FeIII-CeIV clusters formulated as [Fe4Ce4O4(O2CCMe3)4(tea)4(N3)4(MeOH)4]∙MeOH (1) and [Fe4Ce4O4(O2CCMe3)6(tea)4(N3)2(MeOH)2]∙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(μ4-O)4} and open {Fe4Ce4(μ4-O)2(μ3-O)2} cores, respectively. The topology of these cores has not been observed before in FeIII-CeIV chemistry. |
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| Cuvinte-cheie aminopolyalcohol ligand, Heterometallic 3d-4f compound, Octanuclear iron(III)-cerium(IV) cluster, structure |
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