Acta Cryst. (2007). E63, m3062  [ doi:10.1107/S1600536807058485 ]

catena-Poly[[bis(pyridine-N)nickel(II)]-di--azido-⁴N¹:N³-[bis(pyridine-N)nickel(II)]-di--azido-⁴N¹:N¹]

W.-C. Song, M.-J. Zhang, Y. Tao and J.-R. Li

Abstract: In the structure of the title compound, [Ni₂(N₃)₄(C₅H₅N)₄]_n, neutral chains of Ni^II atoms are bridged alternately by double end-on and double end-to-end azide bridges. Each Ni^II 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 Ni^II atoms. In the chain, the NiNi 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)°.

Online 21 November 2007

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