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• W2569729827 endingPage "1381" @default.
• W2569729827 startingPage "1374" @default.
• W2569729827 abstract "Two FeIII corroles were connected through a single meso–meso linkage at different positions, that is, 5,5′-linkage and 10,10′-linkage, which led to the observations of position-dependent antiferromagnetic interactions between the two iron(III) corrole units. The iron(III) centers were found to exhibit an intermediate-spin state, S = 3/2, under ambient conditions on the basis of 1H NMR spectra, Curie plots, Mössbauer spectroscopy, and super-conducting quantum interference device (SQUID) measurements. In previous reports, the X-ray structure of dipyridine tris(pentafluorophenyl)corrolato iron(III) was assigned as a six-coordinate species, but the 10,10′-linked and 5,5′-linked dimers preferred five-coordinate geometry in the solid state. In addition, a mixed five-coordinate/six-coordinate dimer was also obtained, implying a susceptibility of the coordination mode to the crystal packing force. By summarizing the results, it can be concluded that pyridinate–iron(III) tris(pentafluorophenyl)corroles can be better described as five-coordinate, intermediate-spin (S = 3/2) species under ambient conditions in toluene, whereas a dominant contribution of six-coordinate low-spin (S = 1/2) iron(III) complex appears when coordinated with stronger axial ligands such as imidazole at low temperature. Complementary to these interpretations, the 10,10′-linked dimer exhibited a larger antiferromagnetic interaction between the two iron(III) corroles (J = –2.04 cm–1) than that of the 5,5′-dimer (J = –0.64 cm–1)." @default.
• W2569729827 created "2017-01-13" @default.
• W2569729827 creator A5009840123 @default.
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• W2569729827 creator A5089584979 @default.
• W2569729827 date "2017-03-10" @default.
• W2569729827 modified "2023-10-16" @default.
• W2569729827 title "Different Antiferromagnetic Coupling between 5,5′‐ and 10,10′‐Linked Iron(III) Corrole Dimers" @default.
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