Ten-Vertex Polyhedral Monocarbaborane Chemistry. The Novel High-Yield Formation of the Ten-Vertex closo Compound [6-(PMe2Ph)-closo-1-CB9H9] from the Thermolysis of [8,8-(PMe2Ph)2-nido-8,7-PtCB9H11]

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Title:Ten-Vertex Polyhedral Monocarbaborane Chemistry. The Novel High-Yield Formation of the Ten-Vertex closo Compound [6-(PMe2Ph)-closo-1-CB9H9] from the Thermolysis of [8,8-(PMe2Ph)2-nido-8,7-PtCB9H11]
Creators:
Jones, Jane H.
Štíbr, Bohumil
Kennedy, John D.
Thornton-Pett, Mark
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 58, 12, pp. 2924-2935

Abstract

Thermolysis of [8,8-(PMe<sub>2</sub>Ph)<sub>2</sub>-<i>nido</i>-8,7-PtCB<sub>9</sub>H<sub>11</sub>] in boiling toluene solution results in an elimination of the platinum centre and cluster closure to give the ten-vertex <i>closo</i> species [6-(PMe<sub>2</sub>Ph)-<i>closo</i>-1-CB<sub>9</sub>H<sub>9</sub>] in 85% yield as a colourles air stable solid. The product is characterized by NMR spectroscopy and single-crystal X-ray diffraction analysis. Crystals (from hexane-dichloromethane) are monoclinic, space group <i>P</i>2<sub>1</sub>/<i>c</i>, with <i>a</i> = 903.20(9), <i>b</i> = 1 481.86(11), <i>c</i> = 2 320.0(2) pm, β = 97.860(7)° and <i>Z</i> = 8, and the structure has been refined to <i>R</i>(<i>R</i><sub>w</sub>) = 0.045(0.051) for 3 281 observed reflections with <i>F</i><sub>o</sub> &gt; 2.0σ(<i>F</i><sub>o</sub>). The clean high-yield elimination of a metal centre from a polyhedral metallaborane or metallaheteroborane species is very rare.

Title:Ten-Vertex Polyhedral Monocarbaborane Chemistry. The Novel High-Yield Formation of the Ten-Vertex closo Compound [6-(PMe2Ph)-closo-1-CB9H9] from the Thermolysis of [8,8-(PMe2Ph)2-nido-8,7-PtCB9H11]
Creators:
Jones, Jane H.
Štíbr, Bohumil
Kennedy, John D.
Thornton-Pett, Mark
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:58
Number:12
Page Range:pp. 2924-2935
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19932924UNSPECIFIED
ID Code:406
Item Type:Article
Deposited On:06 Feb 2009 17:00
Last Modified:06 Feb 2009 16:00

Citation

Jones, Jane H.; Štíbr, Bohumil; Kennedy, John D.; Thornton-Pett, Mark (1993) Ten-Vertex Polyhedral Monocarbaborane Chemistry. The Novel High-Yield Formation of the Ten-Vertex closo Compound [6-(PMe2Ph)-closo-1-CB9H9] from the Thermolysis of [8,8-(PMe2Ph)2-nido-8,7-PtCB9H11]. Collection of Czechoslovak Chemical Communications, 58 (12). pp. 2924-2935. ISSN 0010-0765

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