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   Jackson, Richard K.; Wood, John L. (February 2021, Organic Letters)

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2. Simple Synthesis of Conjugated Polymers Enabled via Pyrrolo[3,2- b ]pyrroles

   https://doi.org/10.1021/acs.chemmater.2c01884  

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3. Rupture Directivity of the 2021 M _W 6.0 Yangbi, Yunnan Earthquake

   https://doi.org/10.1029/2022JB024321  

   Gong, Wenzheng; Ye, Lingling; Qiu, Yuxin; Lay, Thorne; Kanamori, Hiroo (September 2022, Journal of Geophysical Research: Solid Earth)

   Abstract The 2021M_W6.0 Yangbi, Yunnan strike‐slip earthquake occurred on an unmapped crustal fault near the Weixi‐Qiaoho‐Weishan Fault along the southeast margin of the Tibetan Plateau. Using near‐source broadband seismic data from ChinArray, we investigate the spatial and temporal rupture evolution of the mainshock using apparent moment‐rate functions (AMRFs) determined by the empirical Green's function (EGF) method. Assuming a 1D line source on the fault plane, the rupture propagated unilaterally southeastward (∼144°) over a rupture length of ∼8.0 km with an estimated rupture speed of 2.1 km/s to 2.4 km/s. A 2D coseismic slip distribution for an assumed maximum rupture propagation speed of 2.2 km/s indicates that the rupture propagated to the southeast ∼8.0 km along strike and ∼5.0 km downdip with a peak slip of ∼2.1 m before stopping near the largest foreshock, where three bifurcating subfaults intersect. Using the AMRFs, the radiated energy of the mainshock is estimated as ∼. The relatively low moment scaled radiated energyof 1.5 × 10⁻⁵and intense foreshock and aftershock activity might indicate reactivation of an immature fault. The earthquake sequence is mainly distributed along a northwest‐southeast trend, and aftershocks and foreshocks are distributed near the periphery of the mainshock large‐slip area, suggesting that the stress in the mainshock slip zone is significantly reduced to below the level for more than a few overlapping aftershock to occur. 

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4. Synthesis of AcrylonitrilesviaMild Base Promoted Tandem NucleophilicSubstitution‐Isomerizationofα‐CyanohydrinMethanesulfonates

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   Liu, Shiwen; Meng, Lingling; Zeng, Xiaojun; Hammond, Gerald B.; Xu, Bo (April 2021, Chinese Journal of Chemistry)
5. Covalently linked thieno[2,3- b ]thiophene-fullerene dimers: synthesis and physical characterization

   https://doi.org/10.1039/d4ob00027g  

   M_Alazemi, Abdulrahman; BinSabt, Mohammad H; Al-Matar, Hamad M; Balch, Alan L; Shalaby, Mona A (April 2024, Organic & Biomolecular Chemistry)

   Thienothiophene (TT) has received great attention in the fields of electronics and optoelectronics. Here we report a synthesis and characterization of fullerene-donor-fullerene triads linked to thieno[2,3-b]thio- phene as a donor. The photophysical and electrochemical properties of the new dumbbells were investi- gated using UV-vis spectroscopy, fluorescence spectroscopy, cyclic voltammetry, and square wave vol- tammetry. The results showed that both compounds have higher LUMO energy levels than PC61BM, indi- cating that they can be used in photovoltaic applications. Furthermore, the powder was structurally and morphologically characterized via X-ray diffraction (XRD) and scanning electron microscopy (SEM). The SEM revealed the morphological characterization of the two derivatives as globular and urchin-like supra- molecular assemblies. 

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