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RESEARCH PRODUCT
Spin Switching with Triazolate-Strapped Ferrous Porphyrins
Christian NaetherMorten K PetersFynn RöhrichtFrank D. SönnichsenRainer HergesKari RissanenManu LahtinenSebastian HamerCarolina Von EssenTorben Jäkelsubject
chemistry.chemical_classificationkemiallinen synteesiSpin states010405 organic chemistryLigandkompleksiyhdisteet010402 general chemistry01 natural sciencesPorphyrin0104 chemical sciencesIonCatalysisInorganic Chemistrychemistry.chemical_compoundCrystallographyDeprotonationchemistrycoordination complexesPhysical and Theoretical ChemistryCounterionta116chemical synthesisVisible spectrumdescription
Fe(III) porphyrins bridged with 1,2,3-triazole ligands were synthesized. Upon deprotonation, the triazolate ion coordinates to the Fe(III) ion, forming an overall neutral high-spin Fe(III) porphyrin in which the triazolate serves both as an axial ligand and as the counterion. The second axial coordination site is activated for coordination and binds p-methoxypyridine, forming a six-coordinate low-spin complex. Upon addition of a phenylazopyridine as a photodissociable ligand, the spin state of the complex can be reversibly switched with ultraviolet and visible light. The system provides the basis for the development of switchable catalase- and peroxidase-type catalysts and molecular spin switches.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-04-02 | Inorganic Chemistry |