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The title complex, [Li 2 Ni(C 11 H 21 N 3 Si 2 ) 2 (C 4 H 8 O) 2 ], is a trimetallic complex of two Li I cations and a Ni II cation bridged by two N , N ′-(pyridine-2,6-diyl)bis(trimethylsilylamide) ligands that crystallizes in the Fdd 2 space group. The molecule has C  2 rotational symmetry, with the Ni II cation located on the twofold axis. The coordination sphere of the Ni II cation is composed of two amido N and two pyridyl N-atom donors in a distorted square-planar geometry. The Li I cations are coordinated by two amido N-atom donors and a tetrahydrofuran molecule with a long interaction with a pyridyl N-atom donor. The coordinating tetrahydrofuran ligand and a trimethylsilyl group are disordered. Intra- or intermolecular hydrogen bonding, as well as π–π stacking, are not observed between the molecules, likely indicating that weak electrostatic interactions are the dominant feature leading to the crystal structure.

iucrdata

Bis[μ-N,N′-(pyridine-2,6-diyl)bis(trimethylsilylamido)-1κ2N1,N2;2:3κ2N6:N6]bis(tetrahydrofuran)-2:3κ2O-1-nickel(II)-2,3-lithium(I)