catena-Poly[[[iodidocopper(I)]-{μ-N-[(pyridin-2-yl-κN)methyl­idene]pyridin-3-amine-κ2N3:N1}] acetonitrile hemisolvate]

Mahmoudi, A.; Dehghanpour, S.; Babakhodaverdi, M.

doi:10.1107/S1600536812037270

Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 10 (October 2012)

metal-organic compounds

su2480 scheme

Acta Cryst. (2012). E68, m1277-m1278 [ doi:10.1107/S1600536812037270 ]

catena-Poly[[[iodidocopper(I)]-{-N-[(pyridin-2-yl-N)methylidene]pyridin-3-amine-²N³:N¹}] acetonitrile hemisolvate]

A. Mahmoudi, S. Dehghanpour and M. Babakhodaverdi

Abstract: In the asymmetric unit of the title polymeric complex, {[CuI(C₁₁H₉N₃)]·0.5CH₃CN}_n, there are two Cu^I atoms, two N-[(pyridin-2-yl- [kappa] N)methylidene]pyridin-3-amine (PyPy) ligands and two I atoms. Both Cu^I atoms have a distorted tetrahedral geometry, each being coordinated by one I atom, two N atoms of one PyPy ligand and one N atom from an adjacent PyPy ligand. In the crystal, infinite helical chains of [Cu₂(PyPy)₂]_n are formed propagating along the b axis. These chains are linked via weak C-HI hydrogen bonds and [pi] - [pi] stacking interactions [shortest centroid-centroid distance = 3.2727 (14) Å]. During the refinement, electron-density peaks were located that were believed to be highly disordered solvent molecules (possibly acetonitrile). The SQUEEZE option in PLATON [Spek (2009). Acta Cryst. D65, 148-155] indicated there were solvent cavities with a total volume of 196 Å³ containing approximately 60 electrons per unit cell, which equated to one molecule of acetonitrile per asymmetric unit.