[μ-Bis(5,7-dimethyl-1,8-naphthyridin-2-yl)diazene]bis­[difluoridoboron(III)]

In the title compound, C(20)H(18)B(2)F(4)N(6), the bis­(5,7-dimethyl-1,8-naphthyridin-2-yl)diazene molecule is bis­ected by a symmetry centre midway between the central N atoms of the diazene group. Each of the symmetry-related halves of the molecule binds to a B atom through an N,N′-bite. Two terminal F ions complete the distorted BN(2)F(2) tetra­hedral geometry around each B atom. The BF(2) plane is almost perpendicular to the boron–naphthyridine ring plane, with a dihedral angle of 87.8 (2)°. The main inter­actions in the crystal structure are some C—H⋯F hydrogen bonds and π–π contacts between 1,8-naphthyridine rings [centroid–centroid distance = 4.005 (1) Å].