부산대학교 도서관

Salts of transition metal cations complexed by 12‐crown‐4, benzo‐15‐crown‐5 or 18‐crown‐6 with I3–, I5–and I82–anions, are synthesized and their crystal structures are determined bysingle X‐ray diffraction. The crystal structures of 1, 2and 3are built up by three different cations with the compositions [Fe(H2O)6(12c4)6]2+, [Zn(H2O)2(b15c5)3]2+, [Zn(H2O)5(18c6)2]2+, and isolated triiodide anions I3–, respectively. Aside from the cations, the isotypic iron and copper compounds (4, 5) contain crystallographically independent V‐shaped pentaiodide anions which are linked to dimers by weak interionic contacts. Furthermore, the structures contain centrosymmetric I82–anions. An investigation of possible secondary contacts reveals that the iodine substructure of 4and 5consists of essentially isolated octaiodide units.