Int. J. Mol. Sci. 2010, 11(10), 3803-3845; doi:10.3390/ijms11103803
Review

Flexible Two-Dimensional Square-Grid Coordination Polymers: Structures and Functions

1 Nippon Steel Corporation, 20-1Shintomi, Futtsu, Chiba 293-8511, Japan 2 Department of Chemistry, Graduate School of Science, Chiba University, Yayoi, Inage, Chiba 263-8522, Japan 3 Collaborative Innovation Center for Nanotech FIBER (nanoFIC), Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan 4 Research Center for Exotic Nanocarbons, Shinshu University, Wakasato 4-17-1, Nagano-city 380-8553, Japan Current address: Department of Applied Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
* Author to whom correspondence should be addressed.
Received: 21 August 2010; in revised form: 19 September 2010 / Accepted: 20 September 2010 / Published: 30 September 2010
(This article belongs to the Special Issue Metal Organic Frameworks)
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Abstract: Coordination polymers (CPs) or metal-organic frameworks (MOFs) have attracted considerable attention because of the tunable diversity of structures and functions. A 4,4'-bipyridine molecule, which is a simple, linear, exobidentate, and rigid ligand molecule, can construct two-dimensional (2D) square grid type CPs. Only the 2D-CPs with appropriate metal cations and counter anions exhibit flexibility and adsorb gas with a gate mechanism and these 2D-CPs are called elastic layer-structured metal-organic frameworks (ELMs). Such a unique property can make it possible to overcome the dilemma of strong adsorption and easy desorption, which is one of the ideal properties for practical adsorbents.
Keywords: porous coordination polymer (PCP); metal-organic framework (MOF); gas adsorption; gas separation; structural transformation; gate phenomena; elastic layer‑structure; clathrate formation

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MDPI and ACS Style

Kajiro, H.; Kondo, A.; Kaneko, K.; Kanoh, H. Flexible Two-Dimensional Square-Grid Coordination Polymers: Structures and Functions. Int. J. Mol. Sci. 2010, 11, 3803-3845.

AMA Style

Kajiro H, Kondo A, Kaneko K, Kanoh H. Flexible Two-Dimensional Square-Grid Coordination Polymers: Structures and Functions. International Journal of Molecular Sciences. 2010; 11(10):3803-3845.

Chicago/Turabian Style

Kajiro, Hiroshi; Kondo, Atsushi; Kaneko, Katsumi; Kanoh, Hirofumi. 2010. "Flexible Two-Dimensional Square-Grid Coordination Polymers: Structures and Functions." Int. J. Mol. Sci. 11, no. 10: 3803-3845.

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