COORDINATION OF SNCL2 AND GECL2 ONTO A ONE-DIMENSIONAL PLATINUM NETWORK - SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF THE [PPH(4)](2)[PT-8(ECL(2))(4)(CO)(10)] (E=SN, GE) COMPLEXES

The preparation and molecular structures of two anions [Pt-8(ECl(2))(4 )(CO)(10)](2-) (E = Sn, Ge), obtained from the reaction of [Pt-15(CO)( 30)](2-) with tin dichloride and germanium tetrachloride, are reported ; X-ray analysis shows that the two isomorphous and isostructural anio ns exhibit an array of metal atoms formed by an edge-to-edge condensat ion of three tetrahedra generating a one-dimensional framework along t he ($) over bar 4 axis with four ECl(2) groups capping four independen t exposed butterfly surfaces.