T. Arliguie et al., SYNTHESIS AND CRYSTAL-STRUCTURE OF [K(C12H24O6)][U(ETA-C7H7)(2)], THEFIRST CYCLOHEPTATRIENYL SANDWICH COMPOUND, Journal of the Chemical Society, Chemical Communications, (2), 1995, pp. 183-184
The title compound was prepared by treating a mixture of UCl4 and K wi
th C7H8 or by reacting UCl4 with KC7H9; the crystal structure shows th
at the two C7H7 ligands are planar, parallel and perpendicular to the
linear axis defined by the uranium atom and the ring centroids.