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Double-stranded helices and molecular zippers assembled from single-stranded coordination polymers directed by supramolecular interactions

小明 陈;高峰 刘

China Association for Science and Technology

发表时间:2002-10-18

期 刊:Chemistry - A European Journal

语 言:English

U R L: http://www.scopus.com/inward/record.url?scp=0037131488&partnerID=8YFLogxK

摘要

Using three nonlinear dicarboxylates, isophthalate (ipa), 4,4′-oxy-bis(benzoate) (oba), and ethylenedi(4-oxybenzoate) (eoba), we have prepared five neutral infinite copper(II) dicarboxylate coordination polymers containing lateral aromatic chelate ligands, namely [Cu(ipa)(2,2′-bpy)]n·2nH2O (1), [Cu2-(ipa)2 (phen)2H2O]n (2), [Cu(oba)-(phen)]n, (3), [Cu(oba)(2,2′-bpy)]n (4), and [Cu(eoba)(phen)]n (5; 2,2′-bpy=2,2′-bipyridine, phen = 1,10-phenanthroline) by hydrothermal synthesis. X-ray single-crystal structural analyses of these complexes reveal that the nonlinear flexible or V-shaped dicarboxylates can induce the helicity or flexuousity of the polymeric chains and aromatic chelate ligands are important in providing potential supramolecular recognition sites for π-π aromatic stacking interactions. An appropriate combination of the bridging dicarboxylate and aromatic chelate can induce a pair of single-stranded helical or flexuous chains to generate a double-stranded helix or molecular zipper through supramolecular interactions, respectively.

关键词

Copper
Helical structures
Molecular recognition
N
O ligands
Self assembly

相关科学

化学工程
催化
化学
有机化学

被引量

期刊度量

Scopus度量

年份 CiteScore SJR SNIP
1996
1997
1998
1999 2.904 1.602
2000 2.985 1.525
2001 2.872 1.514
2002 2.58 1.426
2003 2.365 1.437
2004 2.442 1.471
2005 2.78 1.474
2006 3.108 1.552
2007 3.449 1.591
2008 3.135 1.497
2009 2.753 1.504
2010 2.791 1.344
2011 8.8 2.902 1.358
2012 9.3 2.935 1.295
2013 9.6 2.643 1.244
2014 9.8 2.526 1.219
2015 9.5 2.461 1.205
2016 9.3 2.352 1.085
2017 9.1 2.265 1.035
2018 8.7 1.842 0.98
2019 9 1.681 1.01
2020 8.9
2021

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