Ferromagnetic Coupling in Copper(II) [2 × 2] Grid-like Complexes

Two copper­(II) [2 × 2] grid-like complexes were synthesized and structurally characterized. Investigation of the magnetic properties showed for both the occurrence of intramolecular ferromagnetic interactions

Electron-Deficient Poly(<i>p</i>‑phenylene vinylene) Provides Electron Mobility over 1 cm² V^–1 s^–1 under Ambient Conditions

Poly­(<i>p</i>-phenylene vinylene) derivatives (PPVs) are one of the most widely investigated <i>p</i>-type polymers in organic electronics. PPVs generally exhibit electron mobilities lower than 10^–4 cm² V^–1 s^–1, thus hindering their applications in high-performance polymer field-effect transistors and organic photovoltaics. Herein, we design and synthesize a novel electron-deficient PPV derivative, benzodifurandione-based PPV (<b>BDPPV</b>). This new PPV derivative displays high electron mobilities up to 1.1 cm² V^–1 s^–1 under ambient conditions (4 orders of magnitude higher than those of other PPVs), because it overcomes common defects in PPVs, such as conformational disorder, weak interchain interaction, and a high LUMO level. <b>BDPPV</b> represents the first polymer that can transport electrons over 1 cm² V^–1 s^–1 under ambient conditions

Synthesis, Structure, and Chiroptical Properties of a Double [7]Heterohelicene

The synthesis of 11a,25a-dibora-11,­12,­25,­26-tetraoxatetranaphtho­[1,2-<i>a</i>:2′,1′-<i>f</i>:1″,2″-<i>j</i>:2‴,1‴-<i>o</i>]­perylene, a double [7]­heterohelicene containing OBO units, has been achieved via tandem demethylation-borylation, representing the highest double helicene reported thus far with all six-membered rings. Single-crystal X-ray analysis clearly demonstrated a significantly twisted structure with the terminal aromatic rings overlapping at both ends, giving the first example of a double helicene with intramolecular π-layers. Such structural features resulted in a high theoretical isomerization barrier of 45.1 kcal/mol, which is the highest value for all the double helicenes ever reported, rendering the achieved molecule with high chiral stability. The (<i>P</i>,<i>P</i>)- and (<i>M</i>,<i>M</i>)-isomers were separated by chiral HPLC and the chiroptical properties were investigated, revealing opposite circular dichroism responses

A Straightforward Strategy toward Large BN-Embedded π‑Systems: Synthesis, Structure, and Optoelectronic Properties of Extended BN Heterosuperbenzenes

A straightforward strategy has been used to construct large BN-embedded π-systems simply from azaacenes. BN heterosuperbenzene derivatives, the largest BN heteroaromatics to date, have been synthesized in three steps. The molecules exhibit curved π-surfaces, showing two different conformations which are self-organized into a sandwich structure and further packed into a π-stacking column. The assembled microribbons exhibit good charge transport properties and photoconductivity, representing an important step toward the optoelectronic applications of BN-embedded aromatics

sj-pdf-1-imr-10.1177_03000605221133988 - Supplemental material for Lamotrigine induced priapism in children: case analysis and literature review

Supplemental material, sj-pdf-1-imr-10.1177_03000605221133988 for Lamotrigine induced priapism in children: case analysis and literature review by Jie Ge, Shan-Shan Cao, Xiao-Yu Cao, Meng Tang, Fei Mu, Yi Qiao, Yue Guan and Jing-Wen Wang in Journal of International Medical Research</p