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Showing 1–7 of 7 results
Advanced filters: Author: Lev N. Zakharov Clear advanced filters

  • An active-template approach has been used to prepare π-conjugated interlocked nanocarbons derived from [n]cycloparaphenylenes. A metal ion bound within the central cavity of a precursor macrocycle first catalyses cross-coupling reactions and then the resulting mechanically interlocked intermediates are further transformed into π-conjugated species—[2] and [3]catenanes as well as a conjugated [3]rotaxane.

    • James H. May
    • Jeff M. Van Raden
    • Ramesh Jasti
    Research
    Nature Chemistry
    Volume: 15, P: 170-176

  • Diagnosis of bile duct cancer often occur in advanced stages, leading to poor survival. Here, the authors combine light scattering and diffuse reflectance spectroscopies in a minimally invasive endoscopic technique for directly assessing the malignant potential of the bile duct lining, and demonstrate 97% detection accuracy.

    • Douglas K. Pleskow
    • Mandeep S. Sawhney
    • Lev T. Perelman
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-12

  • Cyclophanes—consisting of aromatic rings formed into a macrocycle—can display interesting properties but are challenging targets for synthesis. Here, the authors report a route to form cyclophanes by dynamic covalent chemistry, forming disulfides that can be subsequently converted to stable thioethers.

    • Mary S. Collins
    • Matthew E. Carnes
    • Darren W. Johnson
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-7

  • Biradical polycyclic hydrocarbons are promising materials for organic spintronic and photovoltaic applications. The efficient and scalable synthesis of a diindenoanthracene derivative that exhibits moderate biradical character, yet is remarkably stable towards oxygen and heat, is now reported. A thermally accessible magnetic triplet state was studied through variable temperature techniques.

    • Gabriel E. Rudebusch
    • José L. Zafra
    • Michael M. Haley
    Research
    Nature Chemistry
    Volume: 8, P: 753-759

  • A paradoxical case of a well-defined diradicaloid that has an unusually large singlet–triplet energy gap (ΔES-T) imparted by the thiophene sulfur atom is reported. Quantum chemistry, organic synthesis, molecular spectroscopies, X-ray crystal analysis and high-temperature magnetic measurements help account for the dichotomy between the large diradical character and large ΔEST.

    • Justin J. Dressler
    • Mitsuru Teraoka
    • Michael M. Haley
    Research
    Nature Chemistry
    Volume: 10, P: 1134-1140

  • Upon NIR illumination, photocleavable complexes release rapamycin, reactivating dCas9 via fragment reassociation to enable sgRNA-guided gene regulation with spatial control, allowing precise “writing” with NIR light.

    • Lei Zhang
    • Xuejun Zhang
    • Lev T. Perelman
    ResearchOpen Access
    Light: Science & Applications
    Volume: 14, P: 1-12