Controlled Expansion of a Strong‐Field Iron Nitride Cluster: Multi‐Site Ligand Substitution as a Strategy for Activating Interstitial Nitride Nucleophilicity
- Department of Chemistry and Biochemistry University of California, San Diego 9500 Gilman Drive MC 0358 La Jolla CA 92093 USA
- UCSD-CNRS Joint Research Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California, San Diego 9500 Gilman Drive, Mail Code 0358 La Jolla California 92093 USA
Abstract Multimetallic clusters have long been investigated as molecular surrogates for reactive sites on metal surfaces. In the case of the μ 4 ‐nitrido cluster [Fe 4 (μ 4 ‐N)(CO) 12 ] − , this analogy is limited owing to the electron‐withdrawing effect of carbonyl ligands on the iron nitride core. Described here is the synthesis and reactivity of [Fe 4 (μ 4 ‐N)(CO) 8 (CNAr Mes2 ) 4 ] − , an electron‐rich analogue of [Fe 4 (μ 4 ‐N)(CO) 12 ] − , where the interstitial nitride displays significant nucleophilicity. This characteristic enables rational expansion with main‐group and transition‐metal centers to yield unsaturated sites. The resulting clusters display surface‐like reactivity through coordination‐sphere‐dependent atom rearrangement and metal–metal cooperativity.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1438949
- Journal Information:
- Angewandte Chemie, Journal Name: Angewandte Chemie Vol. 130 Journal Issue: 40; ISSN 0044-8249
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- Germany
- Language:
- English
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