Six-Coordinate Nitrato Complexes of Iron(III) Porphyrins
Copyright policy )Six-Coordinate Nitrato Complexes of Iron(III) Porphyrins
The interaction of tetrahydrofuran (THF) with thin films of the nitrato complexes Fe(III)(Por)(eta(2)-O(2)NO) [Por = meso-tetraphenylporphyrinato (TPP) and meso-tetratolylporphyrinato (TTP) dianion] at low temperature leads to the formation of the six-coordinate nitrato complex Fe(Por)(THF)(NO(3)), which was characterized by IR and UV-visible spectroscopies. Formation of the THF adduct was accompanied by nitrate linkage isomerization from bidentate to monodentate coordination. The iron(III) center remains in a high spin state in contrast with the previously observed low-spin nitratonitrosyl complex Fe(TPP)(NO)(eta(10-ONO(2)). Upon warming, THF dissociates to restore the initial five-coordinate bidentate nitrato complex.
- University of California, Santa Barbara United States
Nitrates, Porphyrins, Isomerism, Spectroscopy, Fourier Transform Infrared, Spectrophotometry, Ultraviolet, Ferric Compounds
Nitrates, Porphyrins, Isomerism, Spectroscopy, Fourier Transform Infrared, Spectrophotometry, Ultraviolet, Ferric Compounds
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