Department of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran 1983963113, Iran.
Spectrochim Acta A Mol Biomol Spectrosc. 2012 Jan;85(1):17-24. doi: 10.1016/j.saa.2011.08.034. Epub 2011 Sep 21.
[Fe(3)(μ(3)-O)(μ-OAc)(6)(py)(3)]FeBr(4)[py·H], complex (1), (OAc is acetate) was prepared from the reaction of FeBr(3) with pyridine in 1.2 molar aqueous HBr and 2.4 molar aqueous CH(3)COOH. Recrystallization of 1 in acetonitrile produced the [Fe(3)(μ(3)-O)(μ-OAc)(6)(py)(3)][FeBr(4)] complex (2). Both complexes were characterized by IR and (1)H NMR spectroscopies and their structures were studied using the single-crystal diffraction method. There is a lack of thorough characterization of the titled compounds in solution. Paramagnetic (1)H NMR is introduced as a good probe for the characterization of a family of titled compounds in solution when the L ligand coordinated to iron varies as: CH(3)OH, CH(3)CN, DMSO, H(2)O, py and acetone.
[Fe(3)(μ(3)-O)(μ-OAc)(6)(py)(3)]FeBr(4)[py·H]，配合物（1）（OAc 为乙酸根）是由 FeBr(3)与吡啶在 1.2 摩尔当量的水合氢溴酸和 2.4 摩尔当量的水合乙酸反应制得的。在乙腈中重结晶 1 得到 [Fe(3)(μ(3)-O)(μ-OAc)(6)(py)(3)][FeBr(4)]配合物（2）。两个配合物都通过红外光谱和（1）H NMR 光谱进行了表征，并通过单晶衍射法研究了它们的结构。标题化合物在溶液中的彻底表征还缺乏。当配体 L 配位到铁上的变化为：CH(3)OH、CH(3)CN、DMSO、H(2)O、py 和丙酮时，顺磁（1）H NMR 被引入作为对一系列标题化合物在溶液中进行表征的良好探针。
