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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 1
BKCSDE 23(1)
January 20, 2002

Title	Solution Nuclear Magnetic Resonance Spectral Characterization of Iron(II) Porphyrin Complexes of Weakly Coordinating Anions
Author	Byungho Song, Bongjin Park, Chulhee Han
Keywords	Anion binding, Iron porphyrin.
Abstract	Weakly coordinating anions show little affinity for binding to unfunctionalized iron(Ⅱ) porphyrins. The electron-deficient 5, 10, 15, 20-tetrakis(pentafluorophenyl)porphinatoiron(Ⅱ) compound is utilized in this study to demonstrate solution coordination by chloride, bromide and acetate ions. The binding strength of anions to the iron(Ⅱ) porphyrin is reflected by a systematic change in pyrrole proton chemical shift in ¹H NMR spectra; the pyrrole resonance moves downfield when the σ-donor ability of anions is decreased.
Page	119 - 122
Full Text	PDF

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