Results 21 to 30 of about 105 (96)
Environmental Toxicology and Chemistry, Volume 40, Issue 11, Page 3078-3091, November 2021., 2021 Abstract Recently, the potent antiandrogen 4‐methyl‐7‐diethylaminocoumarin (C47) and its potential transformation products 4‐methyl‐7‐ethylaminocoumarin (C47T1) and 4‐methyl‐7‐aminocoumarin (C47T2) were identified as novel environmental contaminants.
Matthias Muschket +5 more
wiley +1 more source
Zeitschrift für anorganische und allgemeine Chemie, Volume 647, Issue 2-3, Page 75-80, February 11, 2021., 2021 Abstract The ternary Laves phases Sc0.22(1)Ta0.78(1)Fe2 and Sc0.63(1)In0.37(1)Co2 were synthesized by arc‐melting appropriate amounts of the binary phases ScFe2 and TaFe2 or Sc, In and Co, respectively. The samples were studied by powder X‐ray diffraction and the structures were refined from single crystal X‐ray diffraction data: P63/mmc, a=484.96(7 ...
Nataliya L. Gulay +2 more
wiley +1 more source
crystIT: complexity and configurational entropy of crystal structures via information theory
Journal of Applied Crystallography, Volume 54, Issue 1, Page 306-316, February 2021., 2021 Information theory provides an intriguing framework for evaluating the complexity of a crystal structure. This article provides an improvement to the current theory and describes the integration of the updated formulas into an open‐source Python‐based program called crystIT.The information content of a crystal structure as conceived by information ...
Clemens Kaußler, Gregor Kieslich
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Zeitschrift für anorganische und allgemeine Chemie, Volume 646, Issue 18, Page 1539-1544, September 30, 2020., 2020 The oxonitridosilicate Ca1+xY1–xSiN3–xOx (x > 0) was synthesized in custom‐built high‐temperature autoclaves starting from CaH2, intermetallic YSi and NaN3 using supercritical ammonia as solvent at a maximum pressure of 140 MPa and temperature of 1070 K.
Mathias Mallmann +2 more
wiley +1 more source
Structures of phosphonitrides in light of the extended Zintl–Klemm concept
Acta Crystallographica Section B, Volume 81, Issue 4, Page 378-394, August 2025.The extended Zintl–Klemm concept (EZKC), applied satisfactorily to rationalize the structures of aluminates and silicates, also accounts for the structures of ternary phosphonitrides.The extended Zintl–Klemm concept (EZKC) is applied to explain the crystalline structures of phosphonitrides (also known as nitridophosphates in the chemical literature ...
Angel Vegas +4 more
wiley +1 more source
Topological coordination numbers and coordination reciprocity from electron‐density distributions
Acta Crystallographica Section A, Volume 81, Issue 3, Page 221-244, May 2025.An approach is presented to calculate topological coordination numbers (tCNs) obeying the principle of coordination reciprocity from solid angles subtended by the interatomic surfaces of electron density (QTAIM) atomic domains. The tCN approach characterizes a compound's coordination situation as a set of sub‐coordination scenarios with associated ...
Frank R. Wagner +2 more
wiley +1 more source
The Yenisei Makes the Weather: The Microclimate of the Krasnoyarsk Dam and Its Research, 1960s–1990s
The Russian Review, Volume 84, Issue 2, Page 249-266, April 2025.Abstract When Soviet authorities began building the Krasnoyarsk Dam in 1956, the Yenisei River had an ice‐free period of only 112 days a year. The thick and long‐lasting ice impeded dam building and navigation. However, as the dam rose, it produced an environmental anomaly; for more than 200 kilometers downstream, the Yenisei became ice‐free year‐round.
Mariia Koskina
wiley +1 more source
Engineering Reports, Volume 7, Issue 1, January 2025.A comprehensive DFT study of Sc‐X (X = P, S, Se) compounds revealed structural and dynamic stability. The mechanical and thermodynamic properties of the compounds were calculated in the range 0–800 K. The heat capacity increases exponentially at low temperatures and approaches the Dulong–Petit limit at higher temperatures.
S. K. Yadav +6 more
wiley +1 more source
Water Environment Research, Volume 96, Issue 4, April 2024.This study used automated samplers to collect anthropogenic particles (AP) from the Milwaukee River during four storm events. AP concentrations and fluxes varied with storm phase, and storms increased AP transport downstream compared with baseflow. AP concentrations did not correlate with other water quality metrics during storms.
Elizabeth M. Berg +7 more
wiley +1 more source
Mardin Müzesi’nden Bir Parth Masa Amphorası
Current Perspectives in Social SciencesBu makalenin amacı, Mardin Müzesi envanterine satın alma yoluyla dâhil edilmiş bir adet amphorayı ayrıntılı biçimde tanıtmak, söz konusu örneği Parth masa amphoraları ve genel olarak Mezopotamya tipi amphoralar grubu içinde tipolojik ve kronolojik bakımdan konumlandırmak ve olası üretim coğrafyasını tartışmaktır.
openaire +1 more source