Bis[μ-N-(tert-butyl­dimethyl­sil­yl)quinolin-8-aminato-1:2κ(2) N (1),N (8):N (8)](N,N,N′,N′-tetra­methyl­ethane-1,2-diamine-1κ(2) N,N′)lithiumsodium

In the heterometallic title bulky amido complex, [LiNa(C(15)H(21)N(2)Si)(2)(C(6)H(16)N(2))], both alkali metal ions are four-coordinated with distorted tetra­hedral geometries. The Li(+) ion is N,N′-chelated by the N-silylated amido ligand, with Li—N = 2.015 (5) and 2.074 (5) Å. The two amido ligands are arranged cis to each other. The mol­ecule exhibits a twofold rotational symmetry operation along the Li–Na axis. The Na(+) ion is coordinated by two N atoms from the tetra­methyl­ethylenediamine ligand [Na—N = 2.553 (4) Å] and shares two amido N atoms from the N-silylated amido ligands with the Li(+) ion. Although the crystal structure contains voids with an approximate volume of 50 Å(3) there is no inclusion of solvent mol­ecules.