4-Iodo-1,3,5,7-tetramethyl-1,3,5,7-tetraaza-4λ5-phosphaspiro[3.3]heptane-2,6-dione: Synthesis and Crystal Structure of the First Iodophosphorane

Authors

  • Dr. Johannes Breker,

    1. Institut für Anorganische und Analytische Chemie der Technischen Universität, Hagenring 30, D-3300 Braunschweig (FRG)
    Search for more papers by this author
  • Prof. Dr. Peter G. Jones,

    1. Institut für Anorganische Chemie der Universität, Tammannstrasse 4, D-3400 Göttingen (FRG)
    Search for more papers by this author
  • Dr. Dietmar Stalke,

    1. Institut für Anorganische Chemie der Universität, Tammannstrasse 4, D-3400 Göttingen (FRG)
    Search for more papers by this author
  • Prof. Dr. Reinhard Schmutzler

    Corresponding author
    1. Institut für Anorganische und Analytische Chemie der Technischen Universität, Hagenring 30, D-3300 Braunschweig (FRG)
    • Institut für Anorganische und Analytische Chemie der Technischen Universität, Hagenring 30, D-3300 Braunschweig (FRG)
    Search for more papers by this author

  • This work was supported by the Fonds der Chemischen Industrie.

  • Dedicated to Professor Ernst Otto Fischer on the occassion of his 70th birthday

Abstract

original image

A trigonal-bipyramidally coordinated P atom is the characteristic structural element of the title compound 2, which can be synthesized from the readily available 1 by Cl/I exchange. The crystals of 2 are pale yellow at −30°C, but at room temperature light brown; they decompose above 50°C. The P-I bond, which is without precedent, is 245.8(3) pm long.

Ancillary