Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1407076 | Journal of Molecular Structure | 2008 | 5 Pages |
Abstract
Self-assembly of CdI2 with flexible unsymmetric ligands pybta and pyta [pybta = N-(3-pyridylmethyl)benzotriazole, pyta = 1-(4-pyridylmethyl)(1,2,4-triazole)], respectively, by layer-separating diffusion method at ambient temperature gives rise to two new supramolecular architectures [Cd3(pybta)4I6]n (1) and [Cd(pyta)2I2]n (2). 1 crystallizes in the triclinic system, space group P-1, with cell parameters M = 1939.56, a = 8.5269(3) Ã
, b = 13.2387(2) Ã
, c = 13.9066(4) Ã
, α = 71.927(5)°, β = 83.180(7)°, γ = 81.002(7)°, V = 1469.90(7) Ã
3, Z = 1, R1[I > 2Ï(I)] = 0.0361, wR2 [I > 2Ï(I)] = 0.0889. 2 crystallizes in the monoclinic system, space group P21/c, with cell parameters M = 686.57, a = 8.1754(11) Ã
, b = 16.5254(14) Ã
, c = 8.9068(10) Ã
, β = 116.434(4)°, V = 1077.5(2) Ã
3, ZÂ =Â 2, R1[IÂ >Â 2Ï(I)]Â =Â 0.0214, wR2 [IÂ >Â 2Ï(I)]Â =Â 0.0483. Complex 1 displays a 1D double-stranded chain structure consisting of tri-nuclear [Cd3(pybta)2I6] subunits, as well as complex 2 exhibits an usual 2D 44 sheet structure. The thermal property associated with their crystal structures has also been measured.
Keywords
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Jian Wang, Meihua Huang, Ping Liu, Wendan Cheng,