A novel two-dimensional metal-organic supramolecular framework including pi-pi stacking and hydrogen-bond interactions

作者：Wu Xiao Liu; Zhang Xiao Min; Huang Shu Yun; Zhou Wei Na; Wang Zhi Chang^*

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2013, 69(7): 730-+.

DOI：10.1107/S0108270113015151

[mu-N,N'-Bis(pyridin-3-yl)benzene-1,4-dicarboxamide-1:2 kappa N-2:N']bis{[N,N'-bis(pyridin-3-yl)benzene-1,4-dicarboxamide-kappa N]diiodidomercury(II)}, [Hg2I4(C18H14N4O2)(3)], is an S-shaped dinuclear molecule, composed of two HgI2 units and three N,N'-bis(pyridin-3-yl)benzene-1,4-dicarboxamide (L) ligands. The central L ligand is centrosymmetric and coordinated to two Hg-II cations via two pyridine N atoms, in a syn-syn conformation. The two terminal L ligands are monodentate, with one uncoordinated pyridine N atom, and each adopts a syn-anti conformation. The HgI2 units show highly distorted tetrahedral (sawhorse) geometry, as the Hg-II centres lie only 0.34 (2) or 0.32 (2) angstrom from the planes defined by the I and pyridine N atoms. Supramolecular interactions, thermal stability and solid-state luminescence properties were also measured.

• 出版日期2013-7
• 单位东华理工大学