Results 41 to 50 of about 2,487,426 (273)

N-{(Z)-3-Oxo-3-[(E)-(pyridin-2-ylmethyl)diazenyl]-1-(thiophen-2-yl)prop-1-en-2-yl}benzamide

IUCrData, 2016
In the title compound, C20H16N4O2S, the thiophene ring subtends dihedral angles of 58.6 (3) and 9.8 (3)° with the benzamide and pyridine rings, respectively, whereas these two rings are inclined to one another by 59.3 (3)°. There is an intramolecular C—H.
Devinder K. Sharma, K. N. Subbulakshmi, B. Narayana, B. K. Sarojini, Sumati Anthal, Rajni Kant   +5 more
doaj   +1 more source

Unraveling the long-pursued Au144 structure by x-ray crystallography

Science Advances, 2018
A mysterious, long-pursued structure of a nanocluster-nanocrystal transition-sized nanoparticle is unraveled. The transition from nanocluster to nanocrystal is a central issue in nanoscience.
Nan Yan, Nan Xia, Ling-Wen Liao, Min Zhu, F. Jin, R. Jin, Zhikun Wu   +6 more
semanticscholar   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Characterizing metal binding sites in proteins with X-ray crystallography

Nature Protocols, 2018
This protocol describes the guidelines and best practices for characterizing metal-binding sites in proteins through X-ray crystallography. Metals have crucial roles in many physiological, pathological, toxicological, pharmaceutical, and diagnostic ...
K. Handing, E. Niedzialkowska, I. Shabalin, M. Kuhn, Heping Zheng, W. Minor   +5 more
semanticscholar   +1 more source

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

FEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong, Yuhei Hosokawa, Lars Oliver Essen, Manuel Maestre‐Reyna   +3 more
wiley   +1 more source

R.H. Bragg: An African American Pioneer in X-Ray Crystallography, X-Ray Diffraction, and Materials Characterization

JOM, 2022
Olivia D. Underwood Jackson, C. Williams
semanticscholar   +2 more sources

The crystal structure of the Borrelia burgdorferi nicotinamidase BBE22 resolves a long‐standing annotation error

FEBS Open Bio, EarlyView.
The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley   +1 more source

The structure of coordination precursors as an effective tool for governing of size and morphology of ZnS and ZnO nanoparticles

Journal of Saudi Chemical Society, 2018
The zinc sulphide and zinc oxide micro- and nanoparticles of different shapes were synthesized from the five zinc coordination precursors, via controlled thermal decomposition process.
Rafal Kruszynski, Marcin Swiatkowski
doaj   +1 more source

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Impact of Homocyclic and Heterocyclic Rings of Chalcones on Charge Transfer Behaviour: A Nonlinear Optical Study

Chemical Physics Impact
This paper presents the effects of incorporating thienyl and phenyl rings as the terminal ring in the cinnamoyl counterparts of chalcones with donor-acceptor-donor (D-A-D) push-pull setting, on their photophysical responses.
Nur Aisyah Mohamad Daud, Qin Ai Wong, Bi Sheng Ooi, Ching Kheng Quah, Farah Diana Ramzi, Yip-Foo Win, Parutagouda Shankaragouda Patil   +6 more
doaj   +1 more source