共查询到20条相似文献,搜索用时 15 毫秒
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Dr. Radu Custelcean Neil J. Williams Charles A. Seipp 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2015,127(36):10671-10675
An effective approach to sulfate separation from aqueous solutions is based on the crystallization of extended [SO4(H2O)52−]n sulfate–water clusters with a bis(guanidinium) ligand. The ligand was generated in situ by hydrazone condensation in water, thereby bypassing the need for elaborate syntheses, tedious purifications, and organic solvents. Crystallization of sulfate–water clusters represents an alternative approach to the now established sulfate separation strategies that involve encapsulation of the “naked” anion. 相似文献
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Cover Picture: On the Formation of Intermetalloid Clusters: Titanocene(III)diammin as a Versatile Reactant Toward Nonastannide Zintl Clusters (Angew. Chem. Int. Ed. 2/2015) 下载免费PDF全文
Dr. Christian B. Benda Dr. Markus Waibel Prof. Dr. Thomas F. Fässler 《Angewandte Chemie (International ed. in English)》2015,54(2):365-365
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Dr. Radu Custelcean Neil J. Williams Charles A. Seipp Dr. Alexander S. Ivanov Dr. Vyacheslav S. Bryantsev 《Chemistry (Weinheim an der Bergstrasse, Germany)》2016,22(6):1997-2003
Selective crystallization of sulfate with a simple bis‐guanidinium ligand, self‐assembled in situ from terephthalaldehyde and aminoguanidinium chloride, was employed as an effective way to separate the highly hydrophilic sulfate anion from aqueous solutions. The resulting bis‐iminoguanidinium sulfate salt has exceptionally low aqueous solubility (Ksp=2.4×10?10), comparable to that of BaSO4. Single‐crystal X‐ray diffraction analysis showed the sulfate anions are sequestered as [(SO4)2(H2O)4]4? clusters within the crystals. Variable‐temperature solubility measurements indicated the sulfate crystallization is slightly endothermic (ΔHcryst=3.7 kJ mol?1), thus entropy driven. The real‐world utility of this crystallization‐based approach for sulfate separation was demonstrated by removing up to 99 % of sulfate from seawater in a single step. 相似文献
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Inside Back Cover: Lability‐Controlled Syntheses of Heterometallic Clusters (Angew. Chem. Int. Ed. 11/2014) 下载免费PDF全文
Dr. Graham N. Newton Dr. Kiyotaka Mitsumoto Rong‐Jia Wei Fumichika Iijima Dr. Takuya Shiga Prof. Dr. Hiroyuki Nishikawa Prof. Dr. Hiroki Oshio 《Angewandte Chemie (International ed. in English)》2014,53(11):3033-3033
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Back Cover: Versatile Colorant Syntheses by Multiple Condensations of Acetyl Anilines with Perylene Anhydrides (Angew. Chem. Int. Ed. 7/2015) 下载免费PDF全文
Daniel Jänsch Dr. Chen Li Dr. Long Chen Dr. Manfred Wagner Prof. Dr. Klaus Müllen 《Angewandte Chemie (International ed. in English)》2015,54(7):2292-2292