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Abstract A highly water‐ and air‐stable Fe(II) complex with the quinol‐containing macrocyclic ligand H4qp4 reacts with H2O2to yield Fe(III) complexes with less highly chelating forms of the ligand that have either one or twopara‐quinones. The reaction increases theT1‐weighted relaxivity over four‐fold, enabling the complex to detect H2O2using clinical MRI technology. The iron‐containing sensor differs from its recently characterized manganese analog, which also detects H2O2, in that it is the oxidation of the metal center, rather than the ligand, that primarily enhances the relaxivity.
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Facile interconversion of mesitylcopper into a CuMes–Cu 2 bis(amidinate) triangle and a tetracuprous Möbius strip
A rare cuprous triangle featuring a reactive organocopper site is captured by a new flexible bis(amidinate) ligand from the oligomeric mesitylcopper framework and interconverts with another equivalent of ligand into a tetracuprous Möbius strip.
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- PAR ID:
- 10566126
- Publisher / Repository:
- Royal Society of Chemistry
- Date Published:
- Journal Name:
- Chemical Communications
- Volume:
- 60
- Issue:
- 79
- ISSN:
- 1359-7345
- Page Range / eLocation ID:
- 11136 to 11139
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
-
Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1039/d4cc03935a
