Abstract
Complexes with cadmium-containing anions [Me3BuN]2+[CdI4]2− (I), [Ph3(PhCH2)P]2+[Cd2I6]2−(II), [Me3EtN]n+[CdI3]n−(III), and [Me3NH]n+[CdI3]n−(IV) were synthesized by reacting ammonium and phosphonium iodides with cadmium iodide. In the cations, N and P atoms have a distorted tetrahedral coordination, as Cd atom in the mononuclear [CdI4]2− anion of complex I, too. A centrosymmetric binuclear [Cd2I6]2− anion contains two terminal (t) CdI2 moieties linked to each other by two bridging (br) iodine atoms (Cd-Ibr is 2.8547(3) A; Cd-It are 2.7240(3) A and 2.7241(3) A). Anions of complexes III and IV are polymeric; CdI2 structural units (Cd-It are 2.711(3) A, in III and Cd-It are 2.7366(6) A, in IV) are associated via iodine atoms (Cd-Ibr are 2.853(3) A in III and Cd-Ibr are 2.8472(6) A, 2,8421(6) A in IV) to form polymer chains.
Published Version
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