Metallaborane chemistry. Part III. Oxidative-insertion reactions of eleven-atom monocarbon carbaborane species with zerovalent nickel, palladium, and platinum complexes; the molecular and crystal structure of 1,1 -bis(t-butyl isocyanide)-2-(trimethylamine)-2-carba-1-pallada-closo-decaborane(10)
- 1 January 1975
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 21,p. 2263-2270
- https://doi.org/10.1039/dt9750002263
Abstract
Reaction of [Ni(cod)(ButNC)2], [Pd(ButNC)2], and [Pt(trans-stilbene)(PEt3)2] with [Me4N]+[closo-CB10H11]–and closo-2-NMe3-2-CB10H10 affords the closo-metallacarbaboranes [Me4N]+[1,1-L2-1,2-MCBl0H11]– and [1,1-L2-2-NMe3-1,2-MCBl0Hl0](M = Ni or Pd, L = ButNC; M = Pt, L = PEt3). The molecular structure of the palladium complex has been determined from a single-crystal X-ray diffraction study and refined to R= 0.042 for 3 319 independent observed reflections. Crystals are monoclinic, space group P21/n. with cell dimensions of a= 10.947(3), b= 15.194(4), c= 15.804(4)Å, β= 103.45(2)°. The 12-atom polyhedron has a very distorted icosahedral geometry, marked by an extremely weak metal-carbon interaction with Pd–C(cage) at 2.600(6)Å. The metal to carbaborane bonding is described in terms of approximately square planar co-ordination.Keywords
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