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Title: Organic-inorganic hybrid aligned by the ligand-ligand hydrogen bonds by using pyridyl-substituted oxalamides as the building blocks
Authors: Li, Min ×
Zeng, Qingdao
Wu, Dongxia
Lei, Shengbin
Liu, Caiming
Piao, Lingyu
Yang, Yanlian
Wang, Chen #
Issue Date: Mar-2008
Publisher: Amer chemical soc
Series Title: Crystal growth & design vol:8 issue:3 pages:869-876
Abstract: Pyridyl-substituted oxalamides, L-1 (4-pyCH(2)NHCOCONHCH(2)Py-4), L-2 (3-pyCH(2)NHCOCONHCH(2)PY-3), and L-3 (2-pyCH(2)NHCOCONHCH(2)PY-2), with HgI2 and/or CuBr2, form three new supramolecular complexes, [(Hg3LI6)-I-1](infinity) (1), {[Cu-2(L-2)(4)Br-2]center dot Br-2 center dot 4H(2)O}(infinity) (2), and [Hg(L-3)(2)I-2](infinity) (3), respectively. The complexes 1-3 are aligned by the oxalamide-oxalamide N-H center dot center dot center dot O hydrogen bonds between layers, and their crystal structures have been determined by single-crystal X-ray diffraction. Complex 1 forms a two-dimensional (2D) zigzag sheet architecture extending along the c-direction bridged by L-1 ligand and HgI2, Complex 2 forms an interesting planar 2D (4,4) network with the uncoordinated Br- anions and H2O molecules located in the cavities. Complex 3 forms [2 + 2] metallomacrocycles, which are linked with the mu(2)-bridged I atom and stacked to-ether by intermolecular oxalamide-oxalamide hydrogen bonds and by edge-to-face T-stacking between the pyridyl rings to form the desired supramolecular tubular structure along the a-axis. After the removal of the solvent molecules, solid 2 exhibits a permanent porosity verified by a N-2 sorption isotherm with a N-2 uptake of approximately 1258 cm(3)/g (STP) and a Langmuir surface area of 2102 m(2)/g.
ISSN: 1528-7483
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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