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Polleux J Pinna N Antonietti M Hess C Wild U Schlögl R Niederberger M 《Chemistry (Weinheim an der Bergstrasse, Germany)》2005,11(12):3541-3551
Nanoparticle powders composed of surface-functionalized anatase crystals with diameters of about 3 nm self-organize into different structures upon redispersion in water. The assembly is directed by a small amount of a low-molecular-weight functional ligand (the "assembler") adsorbed on the surface of the nanoparticles. The ligand functionality determines the anisotropy of the resulting structures. Multidentate ligands, such as trizma ((HOCH(2))(3)CNH(2)) and serinol ((HOCH(2))(2)CNH(2)), with a chargeable terminal group preferentially induce the formation of anisotropic nanostructures several hundreds of nanometers in total length, whereas all the other investigated ligands (ethanolamine H(2)N(CH(2))(2)OH, glycine hydroxamate H(2)NCH(2)CONHOH, dopamine (OH)(2)C(6)H(3)(CH(2))(2)NH(3)Cl, tris (HOCH(2))(3)CCH(3)) mainly lead to uncontrolled agglomeration. Experimental data suggests that the anisotropic assembly is a consequence of the water-promoted desorption of the organic ligands from the {001} faces of the crystalline building blocks together with the dissociative adsorption of water on these crystal faces. Both processes induce the preferred attachment of the titania nanoparticles along the [001] direction. The use of polydentate and charged ligands to functionalize the surface of nanoparticles thus provides a versatile tool to control their arrangement on the nanoscale. 相似文献
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Cover Picture: Facile Assembly of Chiral Metallosquares by Using Enantiopure Tribenzotriquinacene Corner Motifs (Chem. Eur. J. 34/2015) 下载免费PDF全文
Wen‐Rong Xu Guang‐Jie Xia Prof. Hak‐Fun Chow Prof. Xiao‐Ping Cao Prof. Dietmar Kuck 《Chemistry (Weinheim an der Bergstrasse, Germany)》2015,21(34):11909-11909
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Cover Picture: Anionic Bipyridyl Ligands for Applications in Metallasupramolecular Chemistry (Chem. Eur. J. 19/2014) 下载免费PDF全文
Dr. Mirela Pascu Mathieu Marmier Clément Schouwey Dr. Rosario Scopelliti Dr. Julian J. Holstein Dr. Gérard Bricogne Prof. Kay Severin 《Chemistry (Weinheim an der Bergstrasse, Germany)》2014,20(19):5513-5513
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Cover Picture: Complexation‐Induced Supramolecular Assembly Drives Metal‐Ion Extraction (Chem. Eur. J. 40/2014) 下载免费PDF全文
Dr. Ross J. Ellis Dr. Yannick Meridiano Dr. Julie Muller Dr. Laurence Berthon Dr. Philippe Guilbaud Dr. Nicole Zorz Dr. Mark R. Antonio Dr. Thomas Demars Prof. Thomas Zemb 《Chemistry (Weinheim an der Bergstrasse, Germany)》2014,20(40):12681-12681
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Cover Picture: Terminal Alkenes as Versatile Chemical Reporter Groups for Metabolic Oligosaccharide Engineering (Chem. Eur. J. 50/2014) 下载免费PDF全文
Anne‐Katrin Späte Verena F. Schart Sophie Schöllkopf Dr. Andrea Niederwieser Prof. Dr. Valentin Wittmann 《Chemistry (Weinheim an der Bergstrasse, Germany)》2014,20(50):16401-16401