Nine-vertex metallaborane chemistry. Preparation and characterisation of [1,1,1-(PMe3)(2)H-isocloso-IrB8H7-8-X], where X = H or Cl

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F12%3A00389864" target="_blank" >RIV/61388980:_____/12:00389864 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.jorganchem.2012.08.012" target="_blank" >http://dx.doi.org/10.1016/j.jorganchem.2012.08.012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jorganchem.2012.08.012" target="_blank" >10.1016/j.jorganchem.2012.08.012</a>

Result language

angličtina

Original language name

Nine-vertex metallaborane chemistry. Preparation and characterisation of [1,1,1-(PMe3)(2)H-isocloso-IrB8H7-8-X], where X = H or Cl

Original language description

The heating of solutions of [(CO)(PMe3)(2)H-arachno-IrB8H11Cl] 1a or [(CO)(PMe3)(2)-nido-IrB8H10Cl] 2 in xylene results in the iridanonaborane cluster compound [1,1,1-(PMe3)(2)H-isocloso-IrB8H7-8-Cl] 3a in yields of up to 42%. Significantly less stable is the non-chlorinated analogue [1,1,1-(PMe3)(2)H-isocloso-IrB8H8] 3b, prepared via solutions of [(CO)(PMe3)(2)H-arachno-IrB8H12] 1b and excess nido-B10H14 in refluxing xylene. The structures of the {IrB8} units of 3a and 3b, characterised by multielementNMR spectroscopy and by single-crystal X-ray diffraction analyses, both approximate closely to an idealised C-2v symmetry with the {IrH(PMe3)(2)} moiety capping the six-membered open faces of arachno/nido-shaped {B-8} units. This structural geometry differs significantly from the classical nine-vertex closo D-3h tricapped trigonal prismatic (ttp) structure of the [closo-B9H9](2-) anion. NMR spectroscopy shows that both 3a and 3b are fluxional with regard to the orientation of the {Ir(H(

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CA - Inorganic chemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Organometallic Chemistry

ISSN

0022-328X

e-ISSN

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Volume of the periodical

721

Issue of the periodical within the volume

SI

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

155-163

UT code for WoS article

000311361100024

EID of the result in the Scopus database

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