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Frequently Asked Question
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Considering that the cobalt(ii) tetraphenylporphyrin does not have a coordination site to the metal cluster of the metal-organic frameworks, what interactions are involved in its trapping in the MOF cavities by the bottle-around-ship approach?
Accepted Answer
The trapping of cobalt(II) tetraphenylporphyrin in the metal-organic frameworks (MOFs) cavities by the bottle-around-ship approach involves various interactions, including:
- π-π Stacking: The porphyrin ring of cobalt(II) tetraphenylporphyrin can interact with the aromatic rings of the MOF organic linkers through π-π stacking interactions.
- van der Waals Interactions: Weak van der Waals forces can contribute to the dispersion interactions between the porphyrin molecule and the MOF framework.
- Hydrogen Bonding: If the MOF contains hydrogen bond donor or acceptor groups, hydrogen bonding interactions can occur between the porphyrin and the MOF.
- Electrostatic Interactions: Electrostatic interactions can arise between the charged porphyrin molecule and the charged MOF framework, if applicable.
- Solvent Effects: The solvent used in the bottle-around-ship approach can influence the interactions between the porphyrin and the MOF. For example, polar solvents can promote hydrogen bonding interactions, while non-polar solvents favor π-π stacking and van der Waals interactions.
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