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Artigo Revisado por pares
BIBTEX RIS

Characteristic structural features of cyclopentadienyl derivatives of post-transition metals

1981; Elsevier BV; Volume: 221; Issue: 3 Linguagem: Inglês

10.1016/s0022-328x(00)88380-1

ISSN

1872-8561

Autores

T. V. Baukova, Yu.L. Slovokhotov, Yu. T. Struchkov,

Tópico(s)

Organoboron and organosilicon chemistry

Resumo

The trinuclear cationic complex [Ph4C5(AuPPh3)3+[BF4]- (I) obtained by interaction of C5HPh4AuPPh3 or Ph4C5(AuPPh3)2 with [AuPPh3+[BF4]- in THF was studied by X-ray diffraction. In the presence of benzene, triclinic crystals of the solvate [Ph4C5(AuPPh3)3]+[BF4]-· 2 C6H6 are formed, a = 12.845(6), b = 16.042(8), c = 22.642(11) Å, α = 86.62(4), β = 77.51(4), γ = 76.05(4)°, space group P1, Z = 2, 9494 reflections with I > 2σ (λ(Mo-Kα), θ/2θ scan, 2θ < 46°), with absorption correction R = 0.054. The complex represents a diaurated cation of tetraphenylcyclopentadienyl(triphenylphosphine)gold, containing a triangular Au2C fragment (AuAu 2.820(1) Å) which is bonded to the third Au atom (AuAu 3.021(1) Å), coordinated to the cyclopentadienyl ligand by a bond intermediate between η1(σ) and η3 (AuC 2.21(2), 2.60(2) and 2.71(2) Å).

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