FU Berlin Digitale Dissertation
Stefan Seidel : Chemistry in Superacids Halogen Cations, Xenon as a Complex Ligand Chemie im Supersauren
|Abstract| |Table of Contents| |More Information|

Abstract 5. Summary With Cl4+ IrF6? a synthesis of a new homopolyatomic cation of chlorine has been achieved, and we have shown that the reaction of IrF6 with Cl2 described 31 years ago do not result in a compound containing the Cl2+ ion. The x-ray crystallography indicates that the product Cl4+ has a rectangular shape. The substance can be characterized furthermore by raman and ESR spectroscopy. Above ?78 °C the compound decomposes to Cl3+ salts, whereas oxygen converts it to Cl2O2+ salts, which have been described quite recently.[9] The anion of the obtained Cl2O2+ HIr2F12? shows a rare symmetric hydrogen bond between both IrF6 units. Complementary to the crystal structures of the known bromine cations, x-ray crystallographic studies of new Br3+ and Br5+ salts and the first Br2F+ salt are presented. Another result of this work is the isolation and characterization by x-ray crystallography, raman and ESR spectroscopy of AuXe42+ (Sb2F11?)2, the first noble gas-metal compound. Not only it is new with respect to the Au?Xe bond, it is also one of a few true Au(II) compounds. The question whether this compound remains unique or if this is the first of a series of new complexes, cannot be answered yet. The reaction of XeF+ SbF6? with SbCl5 in HF/SbF5 results in the formation of a XeCl+ salt. This can be characterized by x-ray crystallography, raman and 129Xe n.m.r. spectra.

Table of Contents Download the whole PhDthesis as a zip-tar file or as zip-File For download in PDF format click the chapter title Titelblatt Gutachter Inhaltsverzeichnis 1. Einleitung 2. Allgemeiner Teil 2.1. Halogen-Kationen 2.2. Kationische Verbindungen 3.Experimenteller Teil 3.1. Allgemeines 3.2. Synthesen und Kristallstrukturanalysen 4. Zusammenfassung 5. Summary 6. Literaturverzeichnis Publikationsliste Danksagung

More Information:
Online available:	http://www.diss.fu-berlin.de/2001/125/indexe.html
Language of PhDThesis:	german
Keywords:	chlorine, xenon, gold, cations
DNB-Sachgruppe:	30 Chemie
Date of disputation:	12-Jul-2001
PhDThesis from:	Fachbereich Biologie, Chemie, Pharmazie, Freie Universität Berlin
First Referee:	Prof. Dr. Konrad Seppelt
Second Referee:	Prof. Dr. Ulrich Abram
Contact (Author):	sseidel@chemie.fu-berlin.de
Contact (Advisor):	seppelt@chemie.fu-berlin.de
Date created:	16-Jul-2001
Date available:	24-Jul-2001

 

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