ChemPlusChem最新文献

The introduction of N atoms can effectively modulate the electronic structure of molecular materials, resulting in superior optoelectronic properties. In this study, a class of benzimidazo[1,2-c]quinazoline derivatives with aggregation-induced emission (AIE) enhancement (AIEE) activity is reported. The core scaffold is a benzimidazo[1,2-c]quinazoline core and a near-vertical core of benzene rings substituted at the C₆ position. By changing the substituents of the aryl ring on C₆, it is possible not only to change the position of the electron distribution on the molecular backbone but also to redshift the maximum fluorescence emission wavelength by 93 nm. Computational and single-crystal results show that the molecules exhibit state-dependent photophysical properties upon aggregation with abundant cross-space interactions (π-dimer between two quinazoline planar backbones, multiple N···H-Ar hydrogen bonds, van der Waals forces, etc.), and these multiple interactions not only extend the electron-conjugated system but also stabilize the conformation of the molecule after aggregation and enhance the fluorescence intensity.

ChemPlusChem, 2023, 88, e202200413

DOI: 10.1002/cplu.202200413

Meng-Yuan Li,^[a] Wu Yang,^[a] Jing-He Cen,^[a] Ling-Gui Liu,^[a] Gang Yang,^[a] Hai-Yang Liu,*^[a] Yu-Hui Liao,*^[b] and Xi-Hao Zhong*^[c]

In page 5 Figure 6, the images located in the third row and third column, and the fourth column of the third row were mistakenly pasted during the composition process. We apologize for this oversight. Upon re-examination of initial cell experiments database, we have corrected the cell picture. In addition, we have also refined the sample formation, scale and other information in Figure 6 and Figure 7. Please refer to the updated correction version.

The updated corrected Figure 6.

The updated corrected Figure 7.

Despite this error, the overall conclusions of the study remain unaffected. The corrected figure does not alter the experimental results or the interpretations drawn from them.

Organic–inorganic lead halide perovskite is under intense focus on developing different optoelectronic devices because of its exceptional optical and electrical properties and ease of processing. However, the Pb²⁺ toxicity and the luminescence instability of these classes of semiconductors require continuous development of newer luminescent variants. Herein, Mn²⁺ is used as a dopant in luminescent morpholinium lead bromide perovskite, (C₄H₁₀NO)PbBr₃, to substitute Pb²⁺ with Mn²⁺ with varied doping percentage to develop two different analogs of Mn²⁺-doped (C₄H₁₀NO)PbBr₃ with varied optical properties. The incorporation of the dopant ion is investigated using various characterization techniques like inductively coupled plasma-optical emission spectroscopy, single-crystal and powder X-ray diffraction, infrared, and electron paramagnetic resonance spectroscopies. The photophysical properties are characterized by absorption and emission spectroscopies. With the increase in Mn²⁺-dopant amount, the emission maxima showed a blueshift with respect to the pristine sample and exhibited an enhanced (about 40%) photoluminescence quantum yield. Finally, the possibility of utilizing these semiconductors for practical applications is conducted by studying the structural and photophysical properties after embedding them into an optically transparent polymer, polymethyl methacrylate.

Kai Wang, Shilpa Choyal, Jeremy F. Schultz, James McKenzie, Linfei Li, Xiaolong Liu, Nan Jiang, Borophene: Synthesis, Chemistry, and Electronic Properties, ChemPlusChem 2025, 89, e202400333, https://doi.org/10.1002/cplu.202400333.

In the Acknowledgements section, an incorrect funding source was listed. The following sentence should therefore be revised: “J.M. and X.L. acknowledge support from the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0024291.”

The Acknowledgements should have read: “K. W., S. C., L. L., and N. J gratefully acknowledge financial support from the National Science Foundation (DMR-2211474). X.L. acknowledges support from the Oak Ridge Associated Universities Ralph E. Powe Junior Faculty Enhancement Award.”

We apologize for this error.

Hydrosilanes are commonly used as reducing agents or as synthetic precursors for silanols. However, the incorporation of hydrosilanes as carbon bioisosteres is underexplored. In this study, the hydrolytic stability of ten variably substituted hydrosilanes—including monoaryl, monoalkyl, diaryl, dialkyl, alkyl aryl, triaryl, trialkyl, dialkyl aryl, and alkyl diaryl silanes—is investigated using five complementary methods, including ¹H–NMR time-lapse and GC-MS experiments, at neutral pH. The ¹H–NMR time-lapse experiments suggest that monoaryl and monoalkyl silanes are susceptible to hydrolysis, as evidenced by 31% and 22% reduction in starting material, respectively, over 24 h. Other investigated silanes are resistant to hydrolysis in these solvent systems for at least 24 h. The GC-MS experiments quantitatively support the respective reactivity of these hydrosilanes at pH 7. Lastly, the reactivity of selected hydrosilanes is evaluated at pH 7.4 phosphate-buffered saline buffer; only monoalkyl silanes degraded in the presence of the added salt content. Overall, the study demonstrates that hydrosilanes exhibit hydrolytic stability at neutral pH, except for monoaryl- and monoalkyl-substituted silanes, which are susceptible to degradation. The results provide insight into the likelihood of the SiH bond surviving in aqueous environments, opening the door for a wider variety of silicon-containing molecules in drug discovery.

This study investigates the role of oxygen vacancies in the CO₂ adsorption and desorption dynamics of SBA-15:CeO₂ nanocomposites synthesized by direct (DS) and postsynthesis (PS) methods. Physicochemical analyses reveal that the DS method increases the concentration of oxygen vacancies and structural defects within the CeO₂ framework, which significantly boosts CO₂ adsorption capacity and strengthens the gas-surface interactions. Among the materials, S_Ce4.a demonstrates the highest adsorption capacity, reaching 29.4 mg g⁻¹ at 25 °C and 10.7 mg g⁻¹ at 70 °C. These results indicate a physisorption mechanism governed by both thermal conditions and oxygen vacancies. Furthermore, S_Ce4.a and S_Ce10.a. exhibit remarkable stability over 20 adsorption–desorption cycles. The findings suggest that a lower cerium oxide content provides more accessible adsorption sites, making these materials promising candidates for high-performance. Overall, this work highlights synergistic interplay between oxygen vacancies and mesoporous structures, paving the way for the rational design of advanced materials for CO₂ capture technologies.

The cover feature shows a banjo mandolin undergoing an intense degradation process at the upper plastic bridge in contact with the strings. Steel strings strongly corrode in the environment of decomposing cellulose nitrate (CN) as a gas mixture containing corrosive compounds is emitted from the CN. Goethite and nitrate containing corrosion products form on the steel strings in the presence of gaseous CN degradation products. This analytical study supports musical instrument collections in their research on conservation. More information can be found in the Research Article by Vera Milena de Bruyn-Ouboter and co-workers (DOI: 10.1002/cplu.202500099).

The cover features vibrant lampenflora colonizing historic chalk bas-reliefs under artificial lighting. It illustrates the challenge of microbial biofilms in heritage conservation and highlights the study’s innovative use of biocidal POM-ILs. These compounds effectively prevent regrowth on test areas in the Pommery Champagne cellar, offering a sustainable strategy to protect culturally significant subterranean artworks. More information can be found in the Research Article by Stéphanie Eyssautier-Chuine, Scott G. Mitchell, and co-workers (DOI: 10.1002/cplu.202500043).

The Institute of Nanoscience and Nanotechnology (INN) is part of the National Center for Scientific Research “Demokritos” (NCSRD), located in Aghia Paraskevi, Attiki, Greece. The research carried out at INN is multidisciplinary, giving rise to a multitude of research projects in the areas of chemical sciences for nanostructures and biological applications, cultural heritage, magnetism and superconductivity, nanochemistry, as well as nanomaterials, nanoelectronics, photonics, and microsystems. The research activities in INN span the range from fundamental physical sciences and engineering principles to innovative applications in: environment, energy, and industry; digital technology, space, security, and defense; quantum materials and technology; health and agrofood; and culture and climate. In this Institute Feature, a number of articles are presented reporting recent research in which chemistry is an essential component.

The conservation of degraded canvases often requires consolidation treatments that improve mechanical strength and minimize the impact of temperature and humidity fluctuations. In their Research Article (10.1002/cplu.202500058), Romain Bordes, Yiming Jia, and Krister Holmberg present an eco-friendly dispersion system that combines CNC, EHM, and beeswax nanoemulsion for consolidation and hydrophobization of degraded canvases. The beeswax nanoemulsion, prepared using the Ouzo effect, enhances moisture resistance while mimicking superhydrophobic surfaces.