Chacon-Teran, Miguel A. and Creutz, Sidney E. and Rodriguez-Lugo, Rafael Emilio and Demeshko, Serhiy and Meyer, Franc and Kajetanowicz, Anna and Grela, Karol (2024) Construction of Diiron Diamond-Core Complexes Influenced by a Fluoroalkoxide Ligand. ORGANOMETALLICS, 43 (4). pp. 564-572. ISSN 0276-7333, 1520-6041
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The Fe n X n scaffold (X = p-block elements) occurs in many multimetallic metallaproteins and metalloenzymes. Studies on synthetic complexes with a Fe2X2 core are of great interest for understanding their electronic structures and intrinsic reactivities. Here is presented the use of alpha,alpha-bis-(trifluoromethyl)-benzyloxide as a ligand to support the assembly of two heteroleptic iron complexes featuring a core structure of the type Fe2X2 (X = HMDS, N-(SiMe3)2; HMTO, O-2,6-(2 ' ,4 ',6 '-Me-3-C6H2)(2)-C6H3). In both cases, the fluoroalkoxide ligand selectively occupies the terminal position at the iron centers, while the amide (HMDS) or the nonfluorinated alkoxide (HMTO) donor is bridging the iron atoms to constitute the Fe2X2-type scaffold. In solution, even at room temperature, the amido-bridged compound features a stable diamond-core structure, exhibiting low-coordinate iron centers and a strong intermetallic antiferromagnetic interaction, as supported by experimental data and theoretical calculations. In contrast, the HMTO-bridged compound features ferromagnetic coupling, but is labile in solution.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | IRON(II) THIOLATE COMPLEXES; ORBITAL ANGULAR-MOMENTUM; METHANE MONOOXYGENASE; DFT CALCULATIONS; KEY INTERMEDIATE; SPIN RELAXATION; FE; 2-COORDINATE; MOSSBAUER; CLUSTERS; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Robert Wolf |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Nov 2025 10:50 |
| Last Modified: | 17 Nov 2025 10:50 |
| URI: | https://pred.uni-regensburg.de/id/eprint/65128 |
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