Two New Adenine-Based Co(II) Coordination Polymers: Synthesis, Crystal Structure, Coordination Modes, and Reversible Hydrochromic Behavior
Two New Adenine-Based Co(II) Coordination Polymers: Synthesis, Crystal Structure, Coordination Modes, and Reversible Hydrochromic Behavior
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DOI：
10.1021/acs.cgd.5b00218
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发表时间：
2015-07-01
影响因子：
3.8
通讯作者：
Maspoch, Daniel
中科院分区：
文献类型：
--
作者：
Burneo, Ivan;Stylianou, Kyriakos C.;Maspoch, Daniel
We report the synthesis of two new three-dimensional coordination polymers (CPs) based on Co(II), adenine, and aromatic tetracarboxylate linkers. Adenine exhibits bidentate binding modes in both CPs, coordinating through the N-3 and N-9 sites in a first compact CP and through the more rare N-3 and N-7 sites in a second open, flexible, and H2O-responsive CP. These differences together with an analysis of the extended coordination structures made of adenine reported in the Cambridge Structural Database illustrate the rich coordination versatility of adenine as a building block for CPs. Although the latter CP is nonporous to N-2 or CO2, it shows a reversible and detectable color change from pink to purple, and vice versa, upon hydration and dehydration, respectively.
