Self-assembly of a series of cobalt(II) coordination polymers constructed from H2tbip and dipyridyl-based ligands

Inorganic Chemistry
Lu-Fang MaJian-Ge Wang

Abstract

A series of interesting Co(II)-H(2)tbip coordination polymers incorporating different auxiliary ligands, {[Co(tbip)(bipy)(H(2)O)(3)] x 0.5(bipy) x H(2)O}(n) (1), [Co(tbip)(bipy)](n) (2), {[Co(3)(tbip)(3)(dpe)(3)] x 0.5(dpe) x 3 H(2)O}(n) (3), [Co(2)(tbip)(2)(dpe)(H(2)O)](n) (4), [Co(2)(tbip)(2)(bpa)(H(2)O)](n) (5), and {[Co(2)(tbip)(2)(bpa)(2)] x 2.5 H(2)O}(n) (6) (H(2)tbip = 5-tert-butyl isophthalic acid; bipy = 4,4'-bipyridine; dpe = 1,2-di (4-pyridyl)ethylene; bpa = 1,2-bi(4-pyridyl)ethane) were synthesized. X-ray structural analyses of 1-6 reveal a diverse range of structures, ranging from 1D (1) to 2D (2, 6) to 3D (3, 4, 5). Complex 1 shows 1D zigzag bipy-bridged polymeric chains with the terminal tbip ligands as pendants, which are extended to a 3D hydrogen-bonded supramolecular framework involving 1D open channels which encapsulate guest bipy molecules. Polymers 2 and 6 feature similar 2D infinite layer frameworks consisting of cobalt dimers. The structure of 3 is constructed from [Co(2)(tbip)(2)](n) layers, which consists of alternating left- and right-handed helical chains, and further pillared by dpe ligands into a 3D six-connected self-penetrating 4(8).6(6).8 network. The prominent cavities in 3 are parallel to the (...Continue Reading

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Citations

Mar 19, 2013·Inorganic Chemistry·Yuh HijikataSusumu Kitagawa
Feb 18, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Lu-Fang MaMiao Du
Nov 10, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Dong-Sheng LiYao-Yu Wang
Aug 24, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Li-Juan ChenHua Huang
Oct 9, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Xue-Hui JingVladislav A Blatov
Oct 1, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Ya-guang SunFrancis Verpoort

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