η³- Allymetall-Schwefel-Cluster des Nickels, Palladiums und Platins / η³-Allyl Metal Sulfur Cluster Compounds of Nickel, Palladium, and Platinum

Abstract

Abstract Novel cluster compounds of the composition [(η 3 -C 3 H 5 ) 2 M 2 S] x , wherein M represents nickel, palladium or platinum are obtained by reaction of 2,5-disubstituted-1,6,6a-trithiopentalenes or H 2 S with (η 3 -C 3 H 5 ) 2 M in THF solution. The molecular structure of one of these new cluster types [(η 3 -C 3 H 5 Ni) 2 S] 3 has been established by X-ray methods. It is best described as being a fraction of a NiS-framework in which peripheral coordination sites are occupied by partial disordered η 3 -allyl groups. Molecular data (cell data: a = 19.868(4), b = 8.988(2), c = 14.501(3) Å, β = 115.30(2)°, space group C2/c, Z = 4, R = 0.106) are compared with the parent Bs-NiS lattice. Spectroscopic evidence for the structural similarity of the related Pd- and Pt-compounds is given.