Acta Cryst. (2011). E67, m953-m954  [ doi:10.1107/S1600536811022471 ]

Poly[di--chlorido--(1,2,3,9-tetrahydropyrrolo[2,1-b]quinazolin-9-one-²N:O)-mercury(II)]

K. K. Turgunov, Y. Wang, U. Englert and K. M. Shakhidoyatov

Abstract: In the crystal structure of the title two-dimensional network, [HgCl₂(C₁₁H₁₀N₂O)]_n, the asymmetric unit consists of HgCl₂ dumbbells and one molecule of the quinazoline unit. Pseudo-octahedrally coordinated Hg^II cations are chloride-bridged via a crystallographic inversion centre leading to different Hg-Cl bonds (short and long) and linked by other Cl atoms via translation along the a axis. The quinazoline ligands connect the Hg-Cl-Hg-Cl chains by N and O atoms along the b axis, forming the two-dimensional network structure. The crystal structure is stabilized by weak non-classical C-HCl hydrogen bonds and aromatic - stacking interactions [centroid-centroid distances = 3.942 (4) and 3.621 (4) Å].

Online 18 June 2011

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