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RESEARCH PRODUCT
The 5/2,3/2 Spin Admixture in the Chloroiron(III) Derivative of the Sterically Crowded 2,3,7,8,12,13,17,18-Octaethyl-5,10,15,20-tetraphenylporphyrin
Volker SchünemannMichael GerdanAlain TabardDominique MandonRaymond WeissNajib HaoudiAlfred X. TrautweinJean FischerRoger Guilardsubject
Steric effectsSolid-stateGeneral ChemistryRing (chemistry)Catalysislaw.inventionchemistry.chemical_compoundCrystallographyNuclear magnetic resonancechemistrylawTetraphenylporphyrinMössbauer spectroscopySpin (physics)Electron paramagnetic resonanceDerivative (chemistry)description
Despite similar ring deformations in solution and in the solid state, the chloroiron(III) derivative of 2,3,7,8,12,13,17,18-octaethyl-5,10,15,20-tetraphenylporphyrin ([FeCl(oetpp)], shown schematically) prepared in this study exhibits only a very weak quantum-mechanical admixture of spin S=3/2 (only 4-10 %) with spin S=5/2. In contrast, for the variety of [FeCl(oetpp)] studied earlier by other researchers a 40 % contribution of the S=3/2 state was found.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-11-02 | Angewandte Chemie International Edition |