Toward liquid cell quantum sensing: Ytterbium complexes with ultranarrow absorption.

The energetic disorder induced by fluctuating liquid environments acts in opposition to the precise control required for coherence-based sensing. Overcoming fluctuations requires a protected quantum subspace that only weakly interacts with the local environment. We report a ytterbium complex that exhibited an ultranarrow absorption linewidth in solution at room temperature with a full width at half maximum of 0.

Synthesis of Nickel(I)-Bromide Complexes via Oxidation and Ligand Displacement: Evaluation of Ligand Effects on Speciation and Reactivity.

Nickel's +1 oxidation state has received much interest due to its varied and often enigmatic behavior in increasingly popular catalytic methods. In part, the lack of understanding about Ni results from common synthetic strategies limiting the breadth of complexes that are accessible for mechanistic study and catalyst design. We report an oxidative approach using tribromide salts that allows for the generation of a well-defined precursor, [Ni(COD)Br], as well as several new Ni complexes.

App-Free Method for Visualization of Polymers in 3D and Augmented Reality.

The rise of virtual and online education in recent years has led to the development and popularization of many online tools, notably three-dimensional (3D) models and augmented reality (AR), for visualizing various structures in chemical sciences. The majority of the developed tools focus on either small molecules or biological systems, as information regarding their structure can be easily accessed from online databases or obtained through relatively quick calculations. As such, due to a lack of crystallographic and theoretical data available for nonbiological macromolecules, there is a noticeable lack of accessible online tools for the visualization of polymers in 3D.

Cationic indium catalysts for ring opening polymerization: tuning reactivity with hemilabile ligands.

This is a comprehensive study of the effects of rationally designed hemilabile ligands on the stability, reactivity, and change in catalytic behavior of indium complexes. We report cationic alkyl indium complexes supported by a family of hemi-salen type ligands bearing hemilabile thiophenyl (), furfuryl () and pyridyl () pendant donor arms. Shelf-life and stability of these complexes followed the trend < < , showing direct correlation to the affinity of the pendant donor group to the indium center.

Green synthesis of copper oxide nanoparticles using sinapic acid: an underpinning step towards antiangiogenic therapy for breast cancer.

Synthesis of copper oxide nanoparticles without any chemical reductant is always a challenging methodology for biological studies. In this study, sinapic acid, a phytochemical, is used for the synthesis of stable copper oxide nanoparticles. The as-synthesized nanoparticles were characterized thoroughly using UV-Visible, IR spectroscopy, Transmission Electron Microscopy (TEM) and X-ray photoelectron spectroscopy (XPS).