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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 4
BKCSDE 33(4)
April 20, 2012 

Rational Design of Coordination Polymers with Flexible Oxyethylene Side Chains
Eun-Young Choi, Chunji Gao, Suck-Hyun Lee, O-Pil Kwon*
Metallopolymers, Metal-organic framework, Coordination polymers
We rationally designed and synthesized metallopolymers with organic 1,4-benzenedicarboxylic acid (BDC) linkers with different lengths of oxyethylene side chains in order to examine the influence of side chains on the coordination characteristics. While in a previous report the BDC linkers with alkyl side chains were found to form three-dimensional (3D) isoreticular metal-organic framework (IRMOF) structures or one-dimensional (1D) coordination polymeric structures with short -O(CH2)6CH3 or long -O(CH2)9CH3 side chains, respectively, new BDC linkers with oxyethylene side chains of the same lengths, -(OCH2CH2)2CH3 and -(OCH2CH2)3CH3, form only 3D IRMOF structures. This result is attributed to the higher flexibility and smaller volume of oxyethylene side chains compared to alkyl side chains.
1264 - 1268
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