@article {Ondrejkovičová:2002:0095-8972:335, title = "Synthesis, Spectra and Crystal Structure of Tetrakis(Triphenylarsine Oxide)Iron(III)--Oxo-Tribromoiron(III) Tetrabromoferrate(III)-Acetonitrile", journal = "Journal of Coordination Chemistry", parent_itemid = "infobike://tandf/gcoo", publishercode ="tandf", year = "2002", volume = "55", number = "3", publication date ="2002-01-01T00:00:00", pages = "335-343", itemtype = "ARTICLE", issn = "0095-8972", eissn = "1029-0389", url = "https://www.ingentaconnect.com/content/tandf/gcoo/2002/00000055/00000003/art00011", doi = "doi:10.1080/00958970211888", author = "Ondrejkoviov{\’a}, Iveta and Vr{\’a}bel, Viktor", abstract = "The oxidation of triphenylarsine with dioxygen in reaction systems containing some iron compound and Br anions in acetonitrile leads to the formation of a novel unsymmetrical oxo-bridged diiron(III) complex [(OAsPh3)4Fe(-O)FeBr3]+[FeBr4]\textperiodcenteredCH3CN, where OAsPh3 is triphenylarsine oxide. The title complex is also formed by direct reaction of iron(III) bromide and OAsPh3 with dioxygen in acetonitrile solution. The crystal structure of the complex was solved by X-ray diffraction techniques. The cation contains two unsymmetrical species with an ${\rm Fe}{{\hskip -1pt -\!\!\!- \hskip-.5pt}}{\rm O}{{\hskip -1pt -\!\!\!- \hskip-.5pt}}{\rm Fe}$", }