1. Intercalation of Coordinatively Unsaturated FeIII Ion within Interpenetrated Metal-Organic Framework MOF-5.
- Author
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Holmberg, Rebecca J., Burns, Thomas, Greer, Samuel M., Kobera, Libor, Stoian, Sebastian A., Korobkov, Ilia, Hill, Stephen, Bryce, David L., Woo, Tom K., and Murugesu, Muralee
- Subjects
INTERCALATION reactions ,COORDINATE covalent bond ,IRON ions ,METAL-organic frameworks ,CHEMICAL structure ,SINGLE crystals - Abstract
Coordinatively unsaturated Fe
III metal sites were successfully incorporated into the iconic MOF-5 framework. This new structure, FeIII -iMOF-5, is the first example of an interpenetrated MOF linked through intercalated metal ions. Structural characterization was performed with single-crystal and powder XRD, followed by extensive analysis by spectroscopic methods and solid-state NMR, which reveals the paramagnetic ion through its interaction with the framework. EPR and Mössbauer spectroscopy confirmed that the intercalated ions were indeed FeIII , whereas DFT calculations were employed to ascertain the unique pentacoordinate architecture around the FeIII ion. Interestingly, this is also the first crystallographic evidence of pentacoordinate ZnII within the MOF-5 SBU. This new MOF structure displays the potential for metal-site addition as a framework connector, thus creating further opportunity for the innovative development of new MOF materials. [ABSTRACT FROM AUTHOR]- Published
- 2016
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