Polymeric and Cluster Compounds

Polymeric and Cluster Compounds. The compound (Bu hOCAgalj) contains infinite chains (106) in which pairs of Agl tetrahedra are linked 

Each silver atom in the chain is surrounded by a tetrahedral arrangement of iodine atoms the Ag-I distances range from 2.73—3.12 A. The original paper should be consulted for a discussion of the bonding.  

The crystal structure of the gold cluster compound [Au,(PR3)a](PF,)3 (R = p-CgHj-Me) contains discrete units in which a central gold atom is surrounded by eight others, these defining an icosahedron from which one equatorial triangle has been removed (107). The Au-Au bonds involving 

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