Superstructure of EU4CD25: a quasicrystal approximant

Chemistry : a European Journal
Cesar Pay Gómez, Sven Lidin

Abstract

The quasicrystal approximant Eu(4)Cd(25), formerly designated EuCd(6), was synthesized and characterized by means of single-crystal X-ray diffraction. Superstructure reflections corresponding to an F-centered cubic unit cell with a doubled cell-parameter relative to the I-centered cubic sub-cell could be observed in the diffraction data. This gives the largest cubic unit cell reported to date among binary alloys. The superstructure exhibits structural features that are found in all the RE-Cd(6) approximants as well as a further ordering between vacant/occupied Cd(8) cubes and oriented Cd(4) tetrahedra, which causes the superstructure. A reversible high-temperature phase-transition was observed at 782 K by means of DSC.

Citations

Jul 22, 2011·Acta Crystallographica. Section B, Structural Science·Julia DshemuchadseWalter Steurer
May 21, 2013·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Kazue NishimotoRyuji Tamura
Jan 15, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Alexander OvchinnikovAnja-Verena Mudring
Apr 26, 2013·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Tsunetomo YamadaMarc de Boissieu
Jul 27, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Farid LabibAn-Pang Tsai
Jun 20, 2013·Chemistry : a European Journal·Stephen LeeJi Feng
Feb 9, 2007·Angewandte Chemie·Daniel C FredricksonRoald Hoffmann
Apr 12, 2006·Physical Review Letters·Tetsu WatanukiAn Pang Tsai
Mar 17, 2012·Inorganic Chemistry·Timothy E Stacey, Daniel C Fredrickson
Oct 3, 2018·The Journal of Physical Chemistry. a·Katerina P Hilleke, Daniel C Fredrickson

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.