Interpenetrating Metal–Metalloporphyrin Framework for Selective CO2 Uptake and Chemical Transformation of CO2

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• 作者：Wen-Yang Gao ; Chen-Yen Tsai ; Lukasz Wojtas ; Timmy Thiounn ; Chu-Chieh Lin ; Shengqian Ma
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：August 1, 2016
• 年：2016
• 卷：55
• 期：15
• 页码：7291-7294
• 全文大小：268K
• 年卷期：0
• ISSN：1520-510X

文摘

Herein we report a robust primitive cubic (pcu)-topology metal–metalloporphyrin framework (MMPF), MMPF-18, which was constructed from a ubiquitous secondary building unit of a tetranuclear zinc cluster, Zn₄(μ₄-O)(−COO)₆, and a linear organic linker of 5,15-bis(4-carboxyphenyl)porphyrin (H₂bcpp). The strong π–π stacking from porphyrins and the lengthy H₂bcpp ligand affords a 4-fold-interpenetrating network along with reduced void spaces and confined narrow channels. Thereby, MMPF-18 presents segmented pores and high-density metalloporphyrin centers for selective CO₂ uptake over CH₄ and size-selective chemical transformation of CO₂ with epoxides forming cyclic carbonates under ambient conditions.