| Abstract: | The synthesis and X-ray structure of a new cluster compound (Pr4N)2CoRe6S8(CN)6] · 6H2O is reported. It crystallizes in orthorhombic symmetry, P212121 space group with four formula units per unit cell. The following parameters were found: a = 17.942(9) Å, b = 17.979(4) Å, c = 16.344(8) Å, V=5272 0rA3, ρcalc=2.607 g cm−1; final R=0.0331. The compound was prepared by interaction of layered Cs2CoRe6S8(CN)6] · 2H2O with aqueous solution of Pr4NBr. This interaction results in cleavage of covalently linked {Co(H2O)2Re6S8(CN)6}2α2− sheets and in formation of isolated fragments {Co(H2O)5Re6S8(CN)6}u2−. Heating of (Pr4N)2CoRe6S8(CN)6] · 6H2O results in elimination of two water molecules and in formation of (Pr4N)2CoRe6S8(CN)6] · 4H2O containing infinite -Co(H2O)4-NC-Re6S8(CN) 4-CN-Co(H2O)4-chains. |
