Chemistry Article

Determine Molecular structure from spectra in laser-induced electron diffraction

Determine Molecular structure from spectra in laser-induced electron diffraction

April 7, 2021    
Chemist    

Molecular structure retrieval directly from laboratory-frame photoelectron spectra in laser-induced electron diffraction. Ubiquitous to most molecular scattering methods is the challenge to retrieve bond distance and angle from the scattering signals since this requires convergence of pattern matching algorithms or fitting methods. This problem is typically exacerbated when imaging larger molecules or for dynamic systems with little a priori knowledge.

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Improving Metal–organic frameworks (MOFs) stability

Improving Metal–organic frameworks (MOFs) stability

April 5, 2021    
Chemist    

Metal–organic frameworks (MOFs) have been recognized as one of the most important classes of porous materials due to their unique attributes and chemical versatility. Unfortunately, some MOFs suffer from the drawback of relatively poor stability, which would limit their practical applications. In the recent past, great efforts have been invested in developing strategies to improve the stability of MOFs. In general, stable MOFs possess potential toward a broader range of applications.

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Synthetic Approaches to Triarylboranes from 1885 to 2020

Synthetic Approaches to Triarylboranes from 1885 to 2020

January 31, 2021    
Chemist    

Download Synthetic Approaches to Triarylboranes from 1885 to 2020 In recent years, research in the fields of optoelectronics, anion sensors and bioimaging agents have been greatly influenced by novel compounds containing triarylborane motifs. Such compounds possess an empty p-orbital at boron which results in useful optical and electronic properties. Such a diversity of applications was not expected when the first triarylborane was reported in 1885.

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In Crystallo Snapshots of Rh2‑Catalyzed C−H Amination

In Crystallo Snapshots of Rh2‑Catalyzed C−H Amination

January 22, 2021    
Chemist    

While X-ray crystallography routinely provides structural characterization of kinetically stable pre-catalysts and intermediates, elucidation of the structures of transient reactive intermediates, which are intimately engaged in bond-breaking and -making during catalysis, is generally not possible. Here, we demonstrate in crystallo synthesis of Rh2 nitrenoids that participate in catalytic C–H amination, and we characterize these transient intermediates as triplet adducts of Rh2.

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Mechanochemical Cross-Coupling Reactions

Mechanochemical Cross-Coupling Reactions

January 22, 2021    
Chemist    

Mechanochemical synthesis avoids the use of potentially harmful organic solvents, thus providing an attractive and environmentally friendly alternative to solution-based synthesis. Mechanochemical cross-coupling reactions enable cleaner and more sustainable access to a wide range of valuable synthetic targets in organic materials and modern drug discovery.

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