Conjugated microporous polymers based on biphenylene for CO2 adsorption and luminescence detection of nitroaromatic compounds. (10th May 2018)

• Record Type: Journal Article
• Authors: Wang, Shun; Liu, Yuchuan; Yu, Yue; Du, Jianfeng; Cui, Yuanzheng; Song, Xiaowei; Liang, Zhiqiang
• Is Part Of: New journal of chemistry. Volume 42:Number 12(2018)
• Page Start: 9482
• Page End: 9487
• Publication Date: 2018-05-10
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c8nj01306c
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Conjugated microporous polymers based on biphenylene exhibit selective adsorption CO2 over CH4 and N2 and luminescence sensing for picric acid. Abstract : Conjugated microporous polymers have shown great potential applications in chemosensors, gas storage/separation, light-harvesting, and organic electronic materials. In this study, three novel conjugated microporous polymers based on biphenylene have been synthesized by the palladium-catalyzed Suzuki and Sonogashira–Hagihara cross-coupling reactions of 3, 4′, 5-tribromobiphenyl. N2 adsorption studies indicate that these polymers are porous, and the BET surface areas are 493, 1576, and 643 cm 2 g −1 forCMP-LS1, CMP-LS2, andCMP-LS3, respectively. Amongst these synthesized CMPs, CMP-LS2 exhibits the highest CO2 adsorption capacity of 87.4 cm 3 g −1 and reasonable CO2 /N2 selectivity (27.9) and CO2 /CH4 selectivity (5.6) at 273 K/1 bar.CMP-LS1 andCMP-LS2 exhibit blue luminescence in ethanol suspension. Furthermore, the fluorescence ofCMP-LS1 andCMP-LS2 can be effectively quenched by PA with the K SV constants of 5.05 × 10 4 and 3.70 × 10 4 M −1, respectively. They can be used as luminescent sensors for detecting nitroaromatic compounds.