共查询到20条相似文献,搜索用时 15 毫秒
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Christoph Schoo Sebastian Bestgen Alexander Egeberg Jasmin Seibert Sergey N. Konchenko Claus Feldmann Peter W. Roesky 《Angewandte Chemie (International ed. in English)》2019,58(13):4386-4389
Zintl phases of arsenic and molecular compounds containing Zintl‐type polyarsenide ions are of fundamental interest in basic and applied sciences. Unfortunately, the most obvious and reactive arsenic source for the preparation of defined molecular polyarsenide compounds, yellow arsenic As4, is very inconvenient to prepare and neither storable in pure form nor easy to handle. Herein, we present the synthesis and reactivity of elemental As0 nanoparticles (As0Nano, d=7.2±1.8 nm), which were successfully utilized as a reactive arsenic source in reductive f‐element chemistry. Starting from [Cp*2Sm] (Cp*=η5‐C5Me5), the samarium polyarsenide complexes [(Cp*2Sm)2(μ‐η2:η2‐As2)] and [(Cp*2Sm)4As8] were obtained from As0nano, thereby generating the largest molecular polyarsenide of the f‐elements and circumventing the use of As4 in preparative chemistry. 相似文献
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Christoph Schoo Dr. Sebastian Bestgen Alexander Egeberg Dr. Svetlana Klementyeva Prof. Dr. Claus Feldmann Prof. Dr. Sergey N. Konchenko Prof. Dr. Peter W. Roesky 《Angewandte Chemie (International ed. in English)》2018,57(20):5912-5916
Zintl ions in molecular compounds are of fundamental interest for basic research and application. Two reactive antimony sources are presented that allow direct access to molecular polystibide compounds. These are Sb amalgam (Sb/Hg) and ultrasmall Sb0 nanoparticles (d=6.6±0.8 nm), which were used independently as precursors for the synthesis of the largest f‐element polystibide, [(Cp*2Sm)4Sb8]. Whereas the reaction of the nanoparticles with [Cp*2Sm] directly led to [(Cp*2Sm)4Sb8], Sm/Sb/Hg intermediates were isolated when using Sb/Hg as the precursor. These Sm/Sb/Hg intermediates [{(Cp*2Sm)2Sb}2(μ‐Hg)] and [{(Cp*2Sm)3(μ4,η1:2:2:2‐Sb4)}2Hg] were synthetically trapped and structurally characterized, giving insight in the formation mechanism of polystibide compounds. 相似文献
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Inside Back Cover: Direct Umpolung of Glycals and Related 2,3‐Unsaturated N‐Acetylneuraminic Acid Derivatives Using Samarium Diiodide (Angew. Chem. Int. Ed. 24/2014) 下载免费PDF全文
Tien Xuan Le Caroline Papin Gilles Doisneau Jean‐Marie Beau 《Angewandte Chemie (International ed. in English)》2014,53(24):6277-6277
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Inside Cover: Coordination Assembly of Discoid Nanoparticles (Angew. Chem. Int. Ed. 31/2015) 下载免费PDF全文
Dr. Kenji Hirai Dr. Bongjun Yeom Dr. Shu‐Hao Chang Dr. Hang Chi Dr. John F. Mansfield Dr. Byeongdu Lee Sungsik Lee Prof. Ctirad Uher Prof. Dr. Nicholas A. Kotov 《Angewandte Chemie (International ed. in English)》2015,54(31):8850-8850
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Back Cover: Nanosized Heterostructures of Au@Prussian Blue Analogues: Towards Multifunctionality at the Nanoscale (Angew. Chem. Int. Ed. 15/2014) 下载免费PDF全文
Guillaume Maurin‐Pasturel Dr. Jérôme Long Dr. Yannick Guari Franck Godiard Dr. Marc‐Georg Willinger Prof. Dr. Christian Guerin Prof. Dr. Joulia Larionova 《Angewandte Chemie (International ed. in English)》2014,53(15):4008-4008
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Inside Cover: Microfluidic Synthesis of Rigid Nanovesicles for Hydrophilic Reagents Delivery (Angew. Chem. Int. Ed. 13/2015) 下载免费PDF全文
Lu Zhang Qiang Feng Jiuling Wang Prof. Dr. Jiashu Sun Prof. Dr. Xinghua Shi Prof. Dr. Xingyu Jiang 《Angewandte Chemie (International ed. in English)》2015,54(13):3830-3830
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