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The Cluster Polymers $^{1}\ {\infty}\rm [PtBi\ {6}Cl\ {10}]$ and $^{1}\ {\infty}\rm [PtBi\ {6}Br\ {10}]$: Synthesis, Thermochemistry, Crystal Structure and Chemical Bonding by Folker Steden; Peer Schmidt; Bernhard Wahl; Anna Isaeva; Michael Ruck is a Chemistry article available to read on EtoBox.

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## Abstract The reaction of Bi, Pt and Bi__X__~3~ (__X__ = Cl, Br) in an inert flux of Al__X__~3~ yields black crystals of the subhalides PtBi~6~__X__~10~. The compounds can also be obtained from the cluster salts Bi~2/3~[PtBi~6~__X__~12~] by abstracting 2⁄3 equivalents of Bi__X__~3~. Consequently, the formation of PtBi~6~__X__~10~ is favored at higher temperatures when the vapor pressure __p__(Bi__X__~3~) evolved from Bi~2/3~[PtBi~6~__X__~12~] is high. In accordance with the experimental results a quantitative thermodynamic description of the system Bi/Pt/Cl is given. X‐ray diffraction on single‐crystals at 293 K revealed that the two PtBi~6~__X__~10~ compounds crystallize isostructurally in the orthorhombic space group __Pnma__ with __a__ = 1631.4(1)/1682.39(5) pm, __b__ = 2667.8(2)/2731.1(1) pm and __c__ = 906.9(1)/978.30(4) pm for __X__ = Cl/Br. The fundamental motif of the structure is the cuboctahedral [PtBi~6~__X__~12~] cluster, in which the platinum atom centers an octahedron of bismuth atoms whose edges are bridged by twelve halogen atoms. By sharing two halogen atoms with in each case the two neighbors the clusters are concatenated into a cis‐trans chain $^{1}\_{\infty}{\

Who reads The Cluster Polymers $^{1}\ {\infty}\rm [PtBi\ {6}Cl\ {10}]$ and $^{1}\ {\infty}\rm [PtBi\ {6}Br\ {10}]$: Synthesis, Thermochemistry, Crystal Structure and Chemical Bonding?

Author

Folker Steden; Peer Schmidt; Bernhard Wahl; Anna Isaeva; Michael Ruck

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley - V C H Verlag GmbbH & Co.; Wiley (ISSN 0372-7874)

Published

2007

Language

DE

Field

Chemistry (Physical Sciences)