Electric dipole of metal-benzene sandwiches

D. Rayane (1) , Abdul-Rahman Allouche (1) , Rodolphe Antoine (1) , M. Broyer (1) , I. Compagnon (1) , P. Dugourd (1)

1 LASIM - Laboratoire de Spectrométrie Ionique et Moléculaire

We measured the permanent electric dipole moment of transition metal–(C₆H₆)₂ sandwich complexes in the gas phase. The electric dipole for complexes with Sc, Ti, V, Nb, Ta, and Zr is zero (μ<0.2 D), which is in agreement with a symmetric structure. The electric dipole on the A principal inertial axis of the molecule is 0.7 ± 0.3 D for Co–(C₆H₆)₂, and 1.3 ± 0.3 D for Ni–(C₆H₆)₂. This shows that they have an asymmetric structure.

Domaines: Physique [physics]

D. Rayane, Abdul-Rahman Allouche, Rodolphe Antoine, M. Broyer, I. Compagnon, et al.. Electric dipole of metal-benzene sandwiches. Chemical Physics Letters, 2003, 375 (5-6), pp.506-510. ⟨10.1016/S0009-2614(03)00870-4⟩. ⟨hal-00152691⟩