Porous Coordination Polymer Polymorphs with Different Flexible Pores Using a Structurally Flexible and Bent 1,3-Bis(4-pyridyl)propane Ligand
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- 作者：Katsuo Fukuhara ; Shin-ichiro Noro ; Kunihisa Sugimoto ; Tomoyuki Akutagawa ; Kazuya Kubo ; Takayoshi Nakamura
- 刊名：Inorganic Chemistry
- 出版年：2013
- 出版时间：April 15, 2013
- 年：2013
- 卷：52
- 期：8
- 页码：4229-4237
- 全文大小：530K
- 年卷期：v.52,no.8(April 15, 2013)
- ISSN：1520-510X
文摘
Porous coordination polymer (PCP) polymorphs with the formula [Cu(CF3SO3)2(bpp)2]n [1 and 2, where bpp = 1,3-bis(4-pyridyl)propane] have been synthesized and crystallographically characterized, and their distinguishable porous properties have been investigated. 1 was obtained by the removal of guest acetone molecules from one-dimensional PCP {[Cu(CF3SO3)(bpp)2]路CF3SO3路2acetone}n (12acetone), while 2 was derived from two-dimensional PCP {[Cu(CF3SO3)2(bpp)2]路H2O}n (2H2O) by the loss of guest H2O molecules. The desolvated PCPs 1 and 2 with the same formula [Cu(CF3SO3)2(bpp)2] showed distinguishable structures, suggesting PCP polymorphs. In addition, their adsorption behaviors were completely different: 1 showed adsorption with the structural transformation from closed to open forms, while 2 appeared to expand its framework for only as long as was required for the passage of guest molecules. To the best of our knowledge, PCP polymorphs showing either of two different types of flexible pores are very rare.