192587-68-1Relevant academic research and scientific papers
Symmetrization reaction of mercurated ferrocenylimines. X-ray crystal structure of [Hg{(η5-C5H5)Fe(η5-C5H3CPh=NC6H4-4-Br)}2]
Liu, Yuan Hong,Wu, Yang Jie,Huo, Shou Quan,Yuan, Han Zhen
, p. 7 - 13 (1997)
The symmetrization reaction of mercurated anils of benzoylferrocene 1 was easily achieved by refluxing 1 and PPh3 in CHCl3 solution, and afforded the symmetrized products [Hg{(η5-C5H5)Fe(η5-C5H3CPh=NAr)}2] (Ar = a variety of substituted phenyls and β-naphthyl) 2. During the reaction the organometallic complex salts [RHgPPh3]C1 formed; this can disproportionate to give the symmetrized products. The molecular structure of [Hg(η5-C5H5)Fe(η5-C5H3CPh=NC6H4-4-Br)}2] has been determined by single-crystal X-ray analysis. It crystallizes in the triclinic space group P1, with a = 13.001(4), b = 13.029(2), c = 12.236(2)A, a = 103.00(1), β = 104.10(2), γ = 78.86(2)° and Z = 2. Refinement led to R = 0.027 (Rw = 0.037) using 3271 unique reflections with I > 3σ(I). The distance between N(2) and Hg is 2.981(6) A, shorter than the sum of van der Waals radii of N and Hg (3.05-3.15 A), indicating an intramolecular coordination of N(2) and Hg. The 1H NMR spectra of [Hg{(η5-C5H5)Fe(η5-C5H3CPh=NAr)}2] (Ar = C6H4-2-C1 and 2-naphthyl) show that both compounds exist as rotamers in solution.
