[Pb2I3(18-crown-6)2][SnI5] and CdI2(18-crown-6) ∙ 2I2: Two Layered Iodine Networks with Crown-ether Coordinated Pb2+ and Cd2+

Michael Wolff (1) , Claus Feldmann (1)

1 Institut für Anorganische Chemie

[Pb2I3(18-crown-6)2][SnI5] (1) and CdI2(18-crown-6) ∙ 2I2 (2) were prepared by reaction of PbI2, SnI4 and 18-crown-6 as well as CdI2, I2 and 18-crown-6. All reactions were performed in the ionic liquid [NMe(n-Bu)3][N(Tf)2], which serves as polar but aprotic liquid-phase providing a fast diffusion of the reactants at moderate temperatures (100 °C). 1 exhibits V-shaped [Pb2I3(18-crown-6)2]+ cations and trigonal-bipyramidal [SnI5]– anions. In CdI2(18-crown-6) ∙ 2I2 (2), the building unit CdI2(18-crown-6) formally contains linear CdI2 molecules that are interlinked by molecular iodine via long-ranging I–I contacts.

Mots clés: Physical Sciences

Michael Wolff, Claus Feldmann. [Pb2I3(18-crown-6)2][SnI5] and CdI2(18-crown-6) ∙ 2I2: Two Layered Iodine Networks with Crown-ether Coordinated Pb2+ and Cd2+. Journal of Inorganic and General Chemistry / Zeitschrift für anorganische und allgemeine Chemie, 2010, 636 (9-10), pp.1787. ⟨10.1002/zaac.201000072⟩. ⟨hal-00552458⟩