Results 291 to 300 of about 3,897,550 (347)

Chemical Crystallography before X‐ray Diffraction

Angewandte Chemie International Edition, 2013
2012/2013 mark the 100th anniversary of von Laue’s diffraction of X-rays from single crystals of copper sulfate, the postulation of Bragg’s law, and the solution of the first X-ray structure. However, even before 1912, the study of crystals was an integral part of chemistry and it played a major role in development of modern chemical science, including
Krešimir, Molčanov, Vladimir, Stilinović   +1 more
semanticscholar   +4 more sources

Chemical crystallography of fullerenes

Russian Chemical Reviews, 2004
The state-of-the-art in the structural investigations into fullerene derivatives is surveyed. The crystal structures of individual fullerenes and of their derivatives determined experimentally by single-crystal X-ray diffraction are systematised.
Ivan S Neretin, Yurii L Slovokhotov
semanticscholar   +3 more sources

Synchrotron chemical crystallography

Journal of the Chemical Society, Dalton Transactions, 2000
Recent years have seen a considerable development in the availability of single-crystal diffraction facilities with synchrotron radiation for use in non-biological crystallography, with access to several suitable beam-lines around the world. These can markedly extend the range of materials for which a full crystal structure can be determined ...
W. Clegg
openaire   +3 more sources

Informatics for chemical crystallography

JOM, 2009
A fundamental question in inorganic crystallography is the relationship between chemical stoichiometry and crystal structure. The relationship between specific compounds and specific crystal structures is usually developed heuristically by surveying crystallographic data of known compounds.
Changwon Suh, Krishna Rajan
openaire   +2 more sources

5. Chemical Crystallography

1986
Publisher Summary This chapter discusses chemical crystallography. The chapter begins with a discussion of the reasons for using neutron diffraction for certain problems and a description of the data-collection equipment and procedures at steady-state reactor and pulsed spallation neutron sources.
A. Schultz
openaire   +2 more sources

Chemical Crystallography

Nature, 1947
D. Crowfoot
openaire   +2 more sources

Structure Correlation Methods in Chemical Crystallography

Crystallography Reviews, 1996
Abstract The structural information collected by X-ray (or neutron) diffraction studies of metallic, ionic, molecular and macromolecular crystals has increased beyond any previously imagined limit. Data are presently compiled in computer-based crystal structure databases.
FERRETTI, Valeria, GILLI, Paola, BERTOLASI, Valerio, GILLI, Gastone   +3 more
openaire   +2 more sources

Plans vs Reality: Reflections on Chemical Crystallography Online Teaching During COVID-19

, 2020
This communication describes the actions undertaken to translate the chemical crystallography course at the University of Novi Sad, Serbia, from face-to-face to online instruction, as well as the emerging challenges encountered during this unprecedented ...
M. Rodić, Dušica D. Rodić
semanticscholar   +1 more source

Chemical Crystallography: when are ‘ bad data’ ‘good data’?

Crystallography Reviews, 2019
There is an increasing trend to reduce diffraction data collection to a set of numbers and the crystallography to a set of criteria. Many of these criteria have been passed on through generations of crystallographers.
A. Thompson
semanticscholar   +1 more source

Fullertubes: Cylindrical Carbon with Half-Fullerene Endcaps and Tubular Graphene Belts, their Chemical Enrichment, Crystallography of Pristine C90-D5h(1) and C100-D5d(1) Fullertubes, and Isolation of C108, C120, C132, and C156 Cages of Unknown Structures.

Journal of the American Chemical Society, 2020
We report a chemical separation method to isolate fullertubes - a new and soluble allotrope of carbon whose structure merges nanotube, graphene, and fullerene subunits.
Ryan M Koenig, Han-Rui Tian, Tiffany L. Seeler, Katelyn R. Tepper, Hannah M. Franklin, Zuo-Chang Chen, S. Xie, S. Stevenson   +7 more
semanticscholar   +1 more source