S. Seidel, Thomas Harmening, Jutta Kösters, Aylin Koldemir, Wilma Pröbsting, Simon Engelbert, Rainer Pöttgen
{"title":"Eu2Ru3Si5和Eu2Ir3Ga5是一类具有u2mn3si5型结构但铕价不同的铕化合物","authors":"S. Seidel, Thomas Harmening, Jutta Kösters, Aylin Koldemir, Wilma Pröbsting, Simon Engelbert, Rainer Pöttgen","doi":"10.1515/znb-2023-0009","DOIUrl":null,"url":null,"abstract":"Abstract The silicide Eu2Ru3Si5 was synthesized from the elements in a sealed tantalum tube in a high-frequency furnace, while the gallide Eu2Ir3Ga5 was obtained by arc-melting. Both structures were refined from single-crystal X-ray diffractometer data: P4/mnc, a = 1072.69(8), c = 569.55(5) pm, wR = 0.0453, 617 F2 values, 31 variables for Eu2Ru3Si5 and a = 1122.18(7), c = 583.17(4) pm, wR = 0.0546, 729 F2 values, 31 variables for Eu2Ir3Ga4.95(1). The gallide shows small defects on one 8h site. The transition metal atoms in Eu2Ru3Si5 and Eu2Ir3Ga5 have octahedral p element coordination. These Ru@Si6 respectively Ir@Ga6 polyhedra are condensed to three-dimensional [Ru3Si5]6− respectively [Ir3Ga5]4− polyanionic networks. The ground states of Eu(III) in Eu2Ru3Si5 and Eu(II) in Eu2Ir3Ga5 were determined by 151Eu Mössbauer spectroscopy.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"30 1","pages":"293 - 300"},"PeriodicalIF":0.0000,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Eu2Ru3Si5 and Eu2Ir3Ga5 – first europium compounds with U2Mn3Si5-type structure but different europium valence\",\"authors\":\"S. Seidel, Thomas Harmening, Jutta Kösters, Aylin Koldemir, Wilma Pröbsting, Simon Engelbert, Rainer Pöttgen\",\"doi\":\"10.1515/znb-2023-0009\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract The silicide Eu2Ru3Si5 was synthesized from the elements in a sealed tantalum tube in a high-frequency furnace, while the gallide Eu2Ir3Ga5 was obtained by arc-melting. Both structures were refined from single-crystal X-ray diffractometer data: P4/mnc, a = 1072.69(8), c = 569.55(5) pm, wR = 0.0453, 617 F2 values, 31 variables for Eu2Ru3Si5 and a = 1122.18(7), c = 583.17(4) pm, wR = 0.0546, 729 F2 values, 31 variables for Eu2Ir3Ga4.95(1). The gallide shows small defects on one 8h site. The transition metal atoms in Eu2Ru3Si5 and Eu2Ir3Ga5 have octahedral p element coordination. These Ru@Si6 respectively Ir@Ga6 polyhedra are condensed to three-dimensional [Ru3Si5]6− respectively [Ir3Ga5]4− polyanionic networks. The ground states of Eu(III) in Eu2Ru3Si5 and Eu(II) in Eu2Ir3Ga5 were determined by 151Eu Mössbauer spectroscopy.\",\"PeriodicalId\":23831,\"journal\":{\"name\":\"Zeitschrift für Naturforschung B\",\"volume\":\"30 1\",\"pages\":\"293 - 300\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-03-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Zeitschrift für Naturforschung B\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1515/znb-2023-0009\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift für Naturforschung B","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/znb-2023-0009","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
摘要:在高频炉中，用密封钽管内的元素合成硅化物Eu2Ru3Si5，用电弧熔炼法制备镓化物Eu2Ir3Ga5。根据单晶x射线衍射仪数据对这两种结构进行了细化:P4/mnc, a = 1072.69(8)， c = 569.55(5) pm, wR = 0.0453, 617 F2值，Eu2Ru3Si5的31个变量;a = 1122.18(7)， c = 583.17(4) pm, wR = 0.0546, 729 F2值，Eu2Ir3Ga4.95(1)的31个变量。镓在一个8h位点上显示出小缺陷。Eu2Ru3Si5和Eu2Ir3Ga5的过渡金属原子具有八面体p元素配位。这些Ru@Si6分别Ir@Ga6多面体缩合成三维的[Ru3Si5]6−[Ir3Ga5]4−聚阴离子网络。用151Eu Mössbauer光谱法测定了Eu2Ru3Si5中的Eu(III)基态和Eu2Ir3Ga5中的Eu(II)基态。
Eu2Ru3Si5 and Eu2Ir3Ga5 – first europium compounds with U2Mn3Si5-type structure but different europium valence
Abstract The silicide Eu2Ru3Si5 was synthesized from the elements in a sealed tantalum tube in a high-frequency furnace, while the gallide Eu2Ir3Ga5 was obtained by arc-melting. Both structures were refined from single-crystal X-ray diffractometer data: P4/mnc, a = 1072.69(8), c = 569.55(5) pm, wR = 0.0453, 617 F2 values, 31 variables for Eu2Ru3Si5 and a = 1122.18(7), c = 583.17(4) pm, wR = 0.0546, 729 F2 values, 31 variables for Eu2Ir3Ga4.95(1). The gallide shows small defects on one 8h site. The transition metal atoms in Eu2Ru3Si5 and Eu2Ir3Ga5 have octahedral p element coordination. These Ru@Si6 respectively Ir@Ga6 polyhedra are condensed to three-dimensional [Ru3Si5]6− respectively [Ir3Ga5]4− polyanionic networks. The ground states of Eu(III) in Eu2Ru3Si5 and Eu(II) in Eu2Ir3Ga5 were determined by 151Eu Mössbauer spectroscopy.
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