AI Article Synopsis
- This research introduces the first heterometallic octahedral cluster complexes made from both 5d (tungsten) and 3d (iron) metals.
- The main focus is on a compound called (TBA)[FeWBr], which shows selective reactions at the iron site when different solvents are applied.
- The study also reveals various anions related to {FeW}, characterizes them through X-ray diffraction, examines their redox properties, and contrasts the bonding between Fe and W with bonds in other metal clusters using theoretical calculations.
Article Abstract
This research presents the first examples of heterometallic octahedral cluster complexes incorporating both 5d and 3d metals, specifically, tungsten and iron. The key compound, (TBA)[FeWBr] (TBA = tetrabutylammonium), exhibits selective ligand substitution reactions at the iron site when exposed to various solvents. Several {FeW}-type anions, namely, [FeWBr], [FeWBr(L)] (L = HO, DMSO, CHCN), and [(FeWBr)O], were revealed and characterized by single-crystal X-ray diffraction analysis. The redox properties of [FeWBr] were studied and compared with those of [WBr]. Density functional theory calculations demonstrated that the bonding between Fe and W atoms is fundamentally different from the bonding between 4d (Mo-Mo) or 5d (W-W) metals in isotypic {M} clusters.
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| http://dx.doi.org/10.1021/acs.inorgchem.4c02594 | DOI Listing |
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