Construction of Porous Tetrazine‐Functionalized Networks: From Two‐ to Three‐Dimensional Counterparts with Tunable Properties

• Published in: Chemistry methods Vol. 5; no. 4
• Main Authors: Suo, Xian, Fan, Juntian, Qiu, Liqi, Li, Meijia, Thapaliya, Bishnu P., Do‐Thanh, Chi‐Linh, Lu, Ziyang, Popovs, Ilja, Mahurin, Shannon M., Yang, Zhenzhen, Dai, Sheng
• Format: Journal Article
• Language: English
• Published: Weinheim John Wiley & Sons, Inc 01.04.2025; Wiley
• Subjects: aza-fused functionality; Carbon; Catalysis; Construction; Energy storage; Microscopy; Nitrogen; NMR; Nuclear magnetic resonance; photo absorption; Polymerization; Polymers; porous materials; porous organic networks; Zinc
• ISSN: 2628-9725; 2628-9725
• DOI: 10.1002/cmtd.202400042

Porous organic networks (PONs) linked by aza‐fused rings are extensively studied and demonstrated wide applications in diverse fields. It is a long‐term attractive and challenging subject to explore novel PONs functionalized by unexplored aza‐fused moieties. Herein, a series of tetrazine‐linked PONs (Tz‐PONs) were constructed from two‐dimensional to three‐dimensional counterparts with tunable properties. The reaction pathway composed of the amidrazone intermediates formation using multiply substituted aromatic nitrile monomers was catalyzed by zinc salts with Lewis super acidity in the presence of hydrazine, and the subsequent tetrazine formation was assisted by sodium nitrite solution. Textural property of the as‐constructed scaffolds could be tuned by the acidity of the zinc salts, as well as the organic solvents. As an initial assessment, those Tz‐PONs displayed different photo absorption behavior, which may influence the corresponding photocatalysis. A series of tetrazine‐linked PONs (Tz‐PONs) was constructed from two‐dimensional to three‐dimensional counterparts with tunable properties. The reaction pathway composed of the amidrazone intermediates formation using multiple substituted aromatic nitrile monomers was catalyzed by zinc salts with Lewis super acidity in the presence of hydrazine, and the subsequent tetrazine formation was assisted by NaNO2 solution.