catena-Poly[[bis(pyridine-κN)nickel(II)]-di-μ-azido-κ⁴N¹:N³-[bis(pyridine-κN)nickel(II)]-di-μ-azido-κ⁴N¹:N¹]

Abstract

In the structure of the title compound, [Ni2(N3)4(C5H5N)4]n, neutral chains of NiII atoms are bridged alternately by double end‐on and double end‐to‐end azide bridges. Each NiII center is located on a crystallographic general position and in a slightly distorted octahedral coordination environment with two pyridine ligands in the trans positions. Both end‐on and end‐to‐end double azide bridges become equivalent because of the inversion centers lying between each pair of adjacent NiII atoms. In the chain, the Ni...Ni separations across the end‐on and end‐to‐end azide bridges are 3.236 (4) and 4.975 (4) Å, respectively, and the end‐on azide bridging Ni—N—Ni angle is 100.8 (2)°.