Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 795-800 
    ISSN: 0044-2313
    Keywords: Tetraiodoferrate(III) ; Crystal Structure ; Raman Spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation, Characterization, and Crystal Structures of Tetraiodoferrates(III)The extremely air and moisture sensitive tetraiodoferrates MFeI4 with M = K, Rb and Cs have been synthesized by reaction of Fe, MI and I2 at 300°C in closed quartz ampoules. The essentially more stable alkylammonium tetraiodoferrates NR4FeI4 with R = H, C2H5, n-C3H7, n-C4H9 and n-C5H11 can be obtained by reaction of Fe, NR4I and I2 in nitromethane. The Raman and UV/Vis-spectra of the black compounds show the existence of tetrahedral [FeI4]- ions in the structures. The crystal structure of the monoclinic CsFeI4 (CsTlI4 type, spgr P21/c; a = 7.281(1) Å; b = 17.960(3) Å; c = 8.248(2) Å; β = 107.35(15)°) is built up by tetrahedral [FeI4]- ions and CsI11 polyhedra. The crystal structure of the orthorhombic (n-C5H11)4NFeI4 (spgr Pnna; a = 20.143(4) Å; b = 12.683(3) Å; c = 12.577(3) Å) contains tetrahedral [(n-C5H11)4N]+ ions and [FeI4]- ions, respectively.
    Notes: Die extrem luft- und feuchtigkeitsempfindlichen Tetraiodoferrate MFeI4 mit M = K, Rb und Cs entstehen bei Umsetzung von Fe, MI und I2 bei 300°C in geschlossenen Quarzampullen. Die wesentlich stabileren Alkylammoniumtetraiodoferrate NR4FeI4 mit R = H, C2H5, n-C3H7, n-C4H9 und n-C5H11 sind durch Umsetzung von Eisenpulver mit NR4I und Iod in Nitromethan zu erhalten. Die Ramanspektren und UV/Vis-Spektren der schwarzen Verbindungen zeigen, daß in den Strukturen jeweils tetraedrische [FeI4]--Ionen vorliegen. Die Kristallstruktur des monoklinen CsFeI4 (CsTlI4-Typ, RG P21/c; a = 7,281(1) Å; b = 17,960(3) Å; c = 8,248(2) Å; β = 107,35(15)°) wird aus tetraedrischen [FeI4]--Ionen und CsI11-Polyedern aufgebaut. In der Kristallstruktur des orthorhombischen (n-C5H11)4NFeI4 (RG Pnna; a = 20,143(4) Å; b = 12,683(3) Å; c = 12,577(3) Å) sind tetraedrische [(n-C5H11)4N]+-Ionen und [FeI4]--Ionen enthalten.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...