Results 201 to 210 of about 3,897,550 (347)

Quality control of the chemical information in the Crystallography Open Database

Andrius Merkys, Antanas Vaitkus, Eva Sidlauskaite, M. Urbonaitė, A. Grybauskas, S. Gražulis   +5 more
openalex   +1 more source

Synthesis, Spectrometric Characterization, X-Ray Crystallography and Quantum Chemical Calculations of 2-oxo-2H-chromen-7-yl Propionate [PDF]

, 2019
Akoun Abou
openalex   +1 more source

Multi‐Crystal X‐Ray Diffraction (MCXRD) Bridges the Crystallographic Characterisation Gap in Chemistry and Materials Science: Application to MOFs

Angewandte Chemie, EarlyView.
Multi‐crystal X‐ray diffraction (MCXRD) methods allow accurate structural characterisation with crystals too small for single‐crystal X‐ray diffraction and too large for electron diffraction, as demonstrated here for metal‐organic frameworks, and alleviate the radiation‐induced chemical changes that can result from using high‐intensity X‐ray sources to
Joshua P. Smith, Rebecca Smith, Thomas M. Roseveare, Dominic Bara, Alexander J. R. Thom, Ross S. Forgan, Mark R. Warren, Anna J. Warren, Robin L. Owen, Lee Brammer   +9 more
wiley   +2 more sources

Enantiospecific Optical Sensing of Terpenes by an Aggregated Atropisomeric Platinum(II) Complex

Angewandte Chemie, EarlyView.
Aggregated metal complexes act as an artificial nose and permit reversible optical sensing of small volatile molecules like R/S‐limonene based on enantiospecific recognition. Abstract Terpenes are unfunctionalized small volatile organic compounds (VOCs) that are naturally abundant, relevant to climate change, and impose potential health risks.
Annika Huber, Alessandro Prescimone, Christof Sparr, Oliver S. Wenger   +3 more
wiley   +2 more sources

Physical and Chemical Tables for X-Ray Crystallography [PDF]

, 1963
Struther Arnott
openalex   +1 more source

Pyridine Into Pyrrole Transformation Induced Within the Confinement of the Macrocycle

Angewandte Chemie, EarlyView.
This work demonstrates the nontrivial reactivity of pyridine incorporated into a porphyrin framework. The most significant achievement is the contraction of the six‐membered ring to a pyrrole ring, which is a phenomenon of great interest to researchers in this field.
Paulina Krzyszowska, Agata Burska‐Jabłońska, Mateusz Oberski, Michał J. Białek, Lechosław Latos‐Grażyński, Karolina Hurej   +5 more
wiley   +2 more sources

Integrating Chemical Crystallography into Advanced Undergraduate Laboratories [PDF]

, 2014
Joseph M. Tanski
openalex   +1 more source

Mechanism of the Photodecomposition of Stable Triarylmethyl Radicals

Angewandte Chemie, EarlyView.
Photolysis of luminescent chlorinated trityl radicals was studied with density functional theory and the decomposition products were isolated and characterized. It proceeds by a 5‐electron electrocyclization then a 1,8‐sigmatropic chloride shift, forming non‐emissive, less stable fluorenyl radicals.
Hannah E. Hackney, Claude Y. Legault, Hatem M. Titi, Dmytro F. Perepichka   +3 more
wiley   +2 more sources

Recent developments on the Chemical Crystallography Beamline at PETRA III DESY, P24

Preeti Pokhriyal, L. Noohinejad, Heiko-Schulz Ritter, C. Paulmann, M. Tolkiehn   +4 more
openalex   +1 more source

Mild Generation of Highly Nucleophilic N‐Heterocyclic Carbene Boryl Anion From Neutral sp2–sp3 Diboron Reagents and Its Applications in Nucleophilic Borylation

Angewandte Chemie, EarlyView.
A less hindered and highly nucleophilic N‐heterocyclic carbene (NHC) boryl anion is generated at room temperature by reacting sp2–sp3 diboron reagent (NHC)BH2Bpin with KOtBu. This highly reactive anion demonstrates broad reactivity with various electrophiles, including those traditionally considered inert, enabling their efficient borylation.
Weixuan Sun, Peiqi Zhang, Hairong Lyu
wiley   +2 more sources