K2Ag4Se3, Darstellung und kristallstruktur |
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| Affiliation: | 1. Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, Shandong 266100, PR China;2. Max Planck Institute for Terrestrial Microbiology LOEWE Center for Synthetic Microbiology (SYNMIKRO), Marburg 35043, Germany;1. Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;2. Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;3. Department of Inorganic Chemistry, School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;1. State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China;1. College of Physics and Electrical Engineering, Anyang Normal University, Anyang 455000, China;2. Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China;1. Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, SC 88040-900, Brazil;2. Instituto Federal de Educação Ciência e Tecnologia de Santa Catarina – Campus São José, São José, SC 88103-310, Brazil;3. Núcleo de Pesquisa em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP 14404-600, Brazil |
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| Abstract: | By the reaction of potassium carbonate with silver and selenium at 1000 °C, we obtained the ternary compound K2Ag4Se3. Single-crystal investigations revealed the monoclinic space group C2/m; the cell constants are a = 1777.0(10)pm, b = 444.7(3)pm, c = 1185.6(3)pm and β = 108.4(1)°. The atomic arrangement is isotypic with that of K2Ag4S3. The shortest distances between the silver atoms are only a little larger than those in the structure of the element and their geometrical arrangement shows a slightly distorted fragment framework of the f.c.c. lattice. |
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