Intermarrying MOF Glass and Lead Halide Perovskites for Artificial Photosynthesis.

The development of efficient artificial photosynthesis systems is crucial for sustainable chemical production, as they mimic natural processes to convert solar energy into chemical products, thereby addressing both energy and environmental challenges. The main bottlenecks in current research include fabricating highly selective, stable, and scalable catalysts, as well as effectively harnessing the full spectrum of light, particularly the low-energy, long-wavelength portion. Herein, we report a novel composite photocatalyst system based on lead halide perovskites embedded in functionalized MOF glass.

Iodide Double Perovskites and the Limits of their Structural Stability.

While halide double perovskites AM(I)M(III)X have attracted significant attention, examples involving iodides are rare. We examine the limits of the structural stability of iodide double perovskites, presenting the synthesis and single-crystal structures of CsNaScI and CsNaYI. Bypassing the common expectation that iodides have small band gaps, these compounds display optical gaps of 3.

Emergency Medical Services and Police Utilization for Pediatric Mental and Behavioral Health Concerns Within a Large Hospital System.

Objective: This study aimed to compare emergency medical services (EMS) and police utilization trends, epidemiology, and emergency department (ED) outcomes between pediatric patients with mental or behavioral health (MBH) emergencies and those with non-MBH concerns transported to a large children's hospital system.

Methods: This was a retrospective cohort study of patients aged 5 to 18 years transported via EMS and police to two EDs affiliated with a children's hospital from January 2012 through December 2020. Data were abstracted from electronic hospital records.

Hydrogen-Bond-Regulated Mechanochemical Synthesis of Covalent Organic Frameworks: Cocrystal Precursor Strategy for Confined Assembly.

Two-dimensional imine covalent organic frameworks (2D imine-COFs) are crystalline porous materials with broad application prospects. Despite the efforts into their design and synthesis, the mechanisms of their formation are still not fully understood. Herein, a one-pot two-step mechanochemical cocrystal precursor synthetic strategy is developed for efficient construction of 2D imine-COFs.

Molecular Origins of Near-Infrared Luminescence in Molybdenum and Tungsten Oxyhalide Perovskites.

Materials with near-infrared (near-IR) luminescence are desirable for applications in communications and sensing, as well as biomedical diagnostics and imaging. The most used inorganic near-IR emitters rely on precise doping of host crystal structures with select rare-earth or transition metal ions. Recently, another class of materials with intrinsic near-IR emission has been reported.