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<p>Porous organic polymers (POPs) based on carbon-carbon couplings have attracted a great deal of attention owing to their excellent stability and versatile applications. To date, these POPs are mainly based on building blocks containing phenyl and synthesized by homo-/cross-couplings of C(sp<sup>2</sup>) or C(sp), while the POPs entirely constructed by alkane through C(sp<sup>3</sup>)–C(sp<sup>3</sup>) homo-coupling are still challenging and has not been reported. Herein, we developed the first alkane-based POPs, porous polyadamantane (PPA), prepared by a novel C(sp<sup>3</sup>)–C(sp<sup>3</sup>) homo-coupling strategy of 1,3,5,7-tetrabromoadamantane. The afforded PPA showed a high surface area of 681 m<sup>2</sup> g<sup>−1</sup> and inherent microporosity. Moreover, as a novel organic molecular sieve, PPA exhibits efficient separation of C1–C3 alkanes owing to its aliphatic porous environment. This work opened an avenue for the construction of porous polyalkane materials.</p>

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Porous polyadamantane constructed by C(sp3)–C(sp3) coupling of tertiary alkyl bromides

  • 期刊论文

  • 发表日期：

    2026年1月4日

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  • Li Jiang,
  • Zihao Wang,
  • Yunji Xie,
  • Jiangtao Jia,
  • Dongtao Liu,
  • Guangshan Zhu

摘要

Porous organic polymers (POPs) based on carbon-carbon couplings have attracted a great deal of attention owing to their excellent stability and versatile applications. To date, these POPs are mainly based on building blocks containing phenyl and synthesized by homo-/cross-couplings of C(sp2) or C(sp), while the POPs entirely constructed by alkane through C(sp3)–C(sp3) homo-coupling are still challenging and has not been reported. Herein, we developed the first alkane-based POPs, porous polyadamantane (PPA), prepared by a novel C(sp3)–C(sp3) homo-coupling strategy of 1,3,5,7-tetrabromoadamantane. The afforded PPA showed a high surface area of 681 m2 g−1 and inherent microporosity. Moreover, as a novel organic molecular sieve, PPA exhibits efficient separation of C1–C3 alkanes owing to its aliphatic porous environment. This work opened an avenue for the construction of porous polyalkane materials.