Macropolyhedral boron-containing cluster chemistry. A metallathiaborane from S2B17H17: Isolation and characterisation of [(PMe2Ph)(2)PtS2B16H16]; A neo-arachno ten-vertex cluster shape, and the constitution of the [arachno-B10H15](-) anion(+)

0023089 - ÚACH 2006 RIV CZ eng J - Článek v odborném periodiku
Carr, MJ. - Londesborough, Michael Geoffrey Stephen - Bould, J. - Císařová, I. - Štíbr, Bohumil - Kennedy, JD.
Macropolyhedral boron-containing cluster chemistry. A metallathiaborane from S2B17H17: Isolation and characterisation of [(PMe2Ph)(2)PtS2B16H16]; A neo-arachno ten-vertex cluster shape, and the constitution of the [arachno-B10H15](-) anion(+).
[Chemie makropolyhedrálních klastrů. Metallathiaborane odvozený od S2B17H17: Isolace a cherakterisace [(PMe2Ph)(2)PtS2B16H16]. Neo-arachno desetivrcholový klastr, a tvorba [arachno- B10H15 ]-1 aniontu.]
Collection of Czechoslovak Chemical Communications. Roč. 70, č. 4 (2005), s. 430-440. ISSN 0010-0765
Grant CEP: GA ČR(CZ) GA203/05/2646
Grant ostatní: EPSRC(GB) J/56929; EPSRC(GB) K/05818; EPSRC(GB) L/49505
Výzkumný záměr: CEZ:AV0Z40320502
Klíčová slova: macropolyhedral * neo-arachno ten-vertex cluster * X-ray diffraction
Kód oboru RIV: CA - Anorganická chemie
Impakt faktor: 0.949, rok: 2005

The deprotonation of S2B17H17 with sodium hydride and subsequent reaction with [PtCl2( PMe2Ph)(2)] gives the new macropolyhedral metallathiaborane [( PMe2Ph)(2)PtS2B16H16], of which the cluster consists of a conventional eleven-vertex nido {SB10} unit, fused, with two boron atoms in common, with a{PtSB8} unit of unique ten-vertex neo-arachno constitution and geometry. The latter geometry suggests a configuration for the previously structurally uncharacterised [B10H15](-) anion; starting from this configuration, DFT calculations of structure and thence of boron nuclear shieldings, which are found very closely to mimic those found experimentally, thence support a fluxional structure for [B10H15](-) with three {BHB( bridging)} and two {BH( endo)} hydrogen atoms around a six-membered open face.

Deprotonace S2B17H17 hydridem sodným a následná reakce s [PtCl2( PMe2Ph)(2)] poskytuje nový makropolyhedrální metallathioboranový klastr.
Trvalý link: http://hdl.handle.net/11104/0111768