Molecular tectonics: from crystals to crystals of crystals [PDF]
The in situ combination of M(II) cations (Co, Ni, Cu or Zn) with 2,4,6-pyridinetricarboxylic acid as a ligand, a bisamidinium dication as a H-bond donor tecton and NaOH leads to the formation of anionic metal complexes ML2(2-) and their interconnection into isomorphous 3D H-bonded networks displaying different colours which were used as preformed seed ...
Gabriela, Marinescu +3 more
openaire +2 more sources
SHELXT – Integrated space-group and crystal-structure determination
SHELXT automates routine small-molecule structure determination starting from single-crystal reflection data, the Laue group and a reasonable guess as to which elements might be present.
G. Sheldrick
semanticscholar +1 more source
Kinematic Evidence for Superbubbles in I Zw 18: Constraints on the Star Formation History and Chemical Evolution [PDF]
We have combined measurements of the kinematics, morphology, and oxygen abundance of the ionized gas in \IZw18, one of the most metal-poor galaxies known, to examine the star formation history and chemical mixing processes.Comment: 31 pages including 6 ...
Martin, Crystal L.
core +3 more sources
Crystal structure refinement with SHELXL
New features added to the refinement program SHELXL since 2008 are described and explained.
G. Sheldrick
semanticscholar +1 more source
Efficient Direct Laser Generation by Three‐Phonon‐Assisted Transition with Yb:YCOB Crystal
Electron–phonon‐coupling effect can generate the direct lasing beyond the fluorescence spectrum of the gain medium, but the laser efficiency is still low owing to weak multiphonon‐coupling intensity.
Huichen Si +5 more
doaj +1 more source
Crystal Structure of 6,7-Dihydro-5a,7a,13,14-tetraaza-pentaphene-5,8-dione
The X-ray crystal structure of 6,7-dihydro-5a,7a,13,14-tetraaza-pentaphene-5,8-dione, a potential antiproliferative agent on A2058 melanoma cells, was established. It crystallizes in the monoclinic space group P21/c with cell parameters a = 24.879(3)A, b
Jean Guillon +6 more
semanticscholar +1 more source
Crystal Graph Convolutional Neural Networks for an Accurate and Interpretable Prediction of Material Properties. [PDF]
The use of machine learning methods for accelerating the design of crystalline materials usually requires manually constructed feature vectors or complex transformation of atom coordinates to input the crystal structure, which either constrains the model
T. Xie, J. Grossman
semanticscholar +1 more source
Photocatalytic Properties of Nitrogen-Doped Bi12TiO20 Synthesized by Urea Addition Sol-Gel Method
Undoped and nitrogen-doped Bi12TiO20 materials were synthesized by urea addition sol-gel method. By adding urea, undoped, and N-doped gel-type precursors were synthesized by low-temperature dehydrolyzation.
Jiyong Wei +8 more
doaj +1 more source
Magnetic fibers adsorbent has attracted more and more attention because of the large surface area and overcoming the disadvantages of easy agglomeration and difficult separation.
Shuying Shi +8 more
doaj +1 more source
Review of the Yb3+:ScBO3 Laser Crystal Growth, Characterization, and Laser Applications
Passive Q-switching is an effective approach for generating pulsed lasers, owing to its compact and additional modulation-free design. However, to compare favorably with active Q-switching and multi-stage amplification, the output energy needs to be ...
Dazhi Lu +4 more
doaj +1 more source

