Nanochannel-Promoted Polymerization of Substituted Acetylenes in Porous Coordination Polymers

✍ Scribed by Takashi Uemura; Ryo Kitaura; Yusuke Ohta; Masataka Nagaoka; Susumu Kitagawa

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 294 KB
• Volume: 118
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/ange.200600333

✦ Synopsis

In recent years, there has been considerable interest in porous coordination polymers (PCPs) composed of transition-metal ions and bridging organic ligands because of their potential applications in many areas, including storage, separation, and exchange processes. [1] In contrast to conventional microporous materials such as zeolites and activated carbon materials, PCPs have pore surfaces that can be rationally designed and functionalized by their constituents. [1, 2] The versatile pore features of PCPs, such as redox activity, Lewis acidity, basicity, hydrophobicity, chirality, result from the precise arrangement of transition metals and organic functional groups, and should be of key importance for the creation of unique nanosized reaction fields based on the PCP materials. [3] Thus, functionalized PCPs bearing specific interaction sites in/on nanochannels have been envisioned for useful catalytic applications in organic and polymer syntheses, which allow several advantages: 1) reaction acceleration; 2) regulated and controlled reactions (stereo-and regiocontrols); 3) substrate specificity. All of these properties are similar to those of enzyme reactions in biological systems. However, the use of PCP nanochannels with such remarkable effects has been very limited to date.