The seven-membered nickelacycle [NiBr{<i>o</i>-CH=C(CF<sub>3</sub>)C<sub>6</sub>H<sub>4</sub>CH<sub>2</sub>PPh<sub>2</sub>-κ<sup>2</sup><i>C</i>,<i>P</i>}{PPh(CH<sub>2</sub>Ph)<sub>2</sub>}]
作者:Alison J. Edwards、Eric Wenger
DOI:10.1107/s0108270102002883
日期:2002.4.15
The crystal and molecular structures of the title compound, 3-bromo-3-(dibenzylphenylphosphonio)-2,2-diphenyl-5-tri-fluoromethyl-1H-benzo[e][1,2]phosphanickelepine, [NiBr(C22H17F3P)(C20H19P)], which was obtained as the major regioisomer from insertion of HCCCF3 into the Ni-C bond of the five-membered phosphanickelacycle [NiBr(o-C6H4CH2-PPh2-kappa(2) C,P)PPh(CH2Ph)(2)}], have been determined. Principal geometric data include the Ni-X bond lengths Ni-Br 2.3343 (4) Angstrom, Ni-P 2.1867 (7) and 2.2094 (7) Angstrom, and Ni-C 1.882 (3) Angstrom, and the two trans angles P-Ni-P 171.55 (3)degrees and Br-Ni-C 176.88 (9)degrees.