cg800945m_si_002.cif (45.59 kB)
Download fileAssembly of Metal−Organic Frameworks with Helical Layer: From 2D Parallel Interpenetrated Layer to 3D Self-Penetrating Network
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posted on 04.02.2009, 00:00 by Lei Han, Yan Zhou, Wen-Na Zhao, Xing Li, Yun-Xiao LiangTwo novel Co(II)-organic frameworks with helical structures, [Co(hfipbb)(py)]n (1) and {[Co4(OH)(H2O)(hfipbb)3(Hhfipbb)(bpp)2]·H2O}n (2) (H2hfipbb = 4,4′-(hexafluoroisopropylidene)bis(benzoic acid), py = pyridine, bpp = 1,3-bis(4-pyridyl)propane), have been assembled from flexible bent ligands. Complex 1 displays a 2-fold parallel interpenetrated layer network with one-dimensional double helical channels, while 2 exhibits a three-dimensional pillared helical-layer open framework with six-connected self-penetrating topology based on a mixed dinuclear paddle-wheel cluster and tetranuclear [Co4(μ3-OH)2(μ2-OH2)2] steplike cluster.
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