Publications by authors named "Shaoshao Jiao"

Article Synopsis
  • Developing stable long-chain helical molecules is crucial for understanding biological macromolecules, yet it poses significant challenges.
  • This study presents a novel method for stabilizing helical structures in ortho-hexaphenylene (o-HP) derivatives by enhancing through-space conjugation using electron-withdrawing pyridine and pyrazine rings.
  • Experimental and theoretical analyses demonstrate that this approach significantly improves single-molecule conductance, showing over a 70% increase due to these modifications while highlighting that through-bond pathways contribute much less to overall conductance.
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Organic materials with switchable dual circularly polarized luminescence (CPL) are highly desired because they can not only directly radiate tunable circularly polarized light themselves but also induce CPL for guests by providing a chiral environment in self-assembled structures or serving as the hosts for energy transfer systems. However, most organic molecules only exhibit single CPL and it remains challenging to develop organic molecules with dual CPL. Herein, novel through-space conjugated chiral foldamers are constructed by attaching two biphenyl arms to the 9,10-positions of phenanthrene, and switchable dual CPL with opposite signs at different emission wavelengths are successfully realized in the foldamers containing high-polarizability substitutes (cyano, methylthiol and methylsulfonyl).

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The targeted synthesis of a novel ionic porous organic polymer (iPOP) was reported. The compound (denoted as QUST-iPOP-1) was built up through a quaternization reaction of tris(4-imidazolylphenyl)amine and cyanuric chloride, and then benzyl bromide was added to complete the quaternization of the total imidazolyl units. It featured a special exchangeable Cl/Br-rich structure with high permanent porosity and wide pore size distribution, enabling it to rapidly and effectively remove environmentally toxic oxo-anions including CrO, MnO, and ReO and anionic organic dyes with different sizes including methyl blue, Congo red, and methyl orange from water.

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Herein, we developed a tri-functional MOF heterogeneous catalyst, MIL-IMAc-Br-, by a post-synthesis modification method for the first time. Due to the synergistic role of three functional sites, including Lewis acid sites, Brønsted acid sites and Br- anion sites, MIL-IMAc-Br- displayed an efficient catalytic performance for the cycloaddition reaction of CO2 and epoxides to form cyclic carbonates under mild and co-catalyst free conditions.

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