Synthesis, Reactivity and Aromatic Characteristics of Porphyrinoids Derived from -Alkylcarbaporphyrin-2-Carbaldehydes: Isolation of Nickel(II) and Palladium(II) Complexes, Weakly Diatropic 21-Oxycarbaporphyrins and Strongly Aromatic Trioxycarbaporphyrins.

Acid catalyzed condensation of -alkyltripyrranes with trialdehydes derived from 1,3-cyclopentadiene or methyl-1,3-cyclopentadiene, followed by oxidation with aqueous ferric chloride solutions, gave 23-alkyl-21-carbaporphyrin-2-carbaldehydes in 22-27% yield together with weakly aromatic oxycarbaporphyrins. The carbaporphyrins reacted with palladium(II) acetate or nickel(II) acetate to give organometallic complexes but in both cases alkyl group migration took place to generate 21-alkyl derivatives. Although this type of reactivity had been observed previously for palladium complexes, this is the first time the phenomenon has been seen in nickel(II) carbaporphyrins.

Impact of pharmacist-led discharge medication reconciliation on error and patient harm prevention at a large academic medical center.

Introduction: Medication errors during hospital discharge can lead to adverse outcomes, medication-related readmissions, and increased health care costs. Pharmacist-led medication reconciliation at discharge is a potential solution to mitigate poor outcomes and optimize medication safety.

Objectives: This study aimed to quantify medication errors identified at discharge and characterize the severity of patient harm prevented following pharmacist-led discharge medication reconciliation.

The Synthesis, Characterization, and Theoretical Study of Ruthenium (II) Polypyridyl Oligomer Hybrid Structures with Reduced Graphene Oxide for Enhanced Optoelectronic Applications.

π-conjugated polymers are arguably one of the most exciting classes of materials and have attracted substantial attention due to their unique optical and electronic properties. The introduction of transition metals into conjugated polymers tunes the optoelectronic properties of these metallopolymers, which may improve their performance in device applications. Graphene and reduced graphene oxide (RGO) derivatives are interesting materials with a unique structure and outstanding properties.

Malocclusion and Deleterious Oral Habits in Vietnamese Children Between the Ages of 8 and 12 years: A Cross Sectional Study.

Aim: This study aimed to determine the relationship between malocclusion and deleterious oral habits in the Vietnamese children aged 8-12 years.

Materials And Methods: A cross-sectional descriptive analysis was undertaken on a total of 434 children (8-12 years old, 208 males and 226 females), separated into five age groups: 8 years old (16.8%), 9 years old (18.