Cover Picture A Microfabricated GasЦLiquid Segmented Flow Reactor for High-Temperature Synthesis The Case of CdSe Quantum Dots (Angew. Chem. Int. Ed. 342005)код для вставкиСкачать
Cover Picture Brian K. H. Yen, Axel Gnther, Martin A. Schmidt, Klavs F. Jensen,* and Moungi G. Bawendi* The two-phase flow of the gas–liquid segmented flow reactor with multiple temperature zones shown in the cover picture makes it possible to realize both rapid mixing of reagents and narrow residence-time distributions. The reactor design allows the preparation of colloidal CdSe quantum dots (bottom right) with excellent size distributions at high temperature. For more details, see the Communication by K. F. Jensen, M. G. Bawendi, and co-workers on page 5447 ff. (The authors thank Jane Rempel for assistance with the cover picture.) Fullerene Chemistry In their Minireview on page 5374 ff. N. Mart0n, D. M. Guldi, and L. S3nchez describe how supramolecular structures are formed and modulated by combinations of fullerenes and hydrogen bonds. Biaryl Syntheses Axially chiral biaryl compounds are increasingly common structural units. G. Bringmann, M. Breuning, and co-workers describe strategies for the atroposelective synthesis of these challenging compounds in their Review on page 5384 ff. Ferrocenes In their Communication on page 5428 ff., F. J7kle and co-workers describe an electrochemical and structural study of a highly rigid 1,2-diborylated diferrocene that shows unusually strong electronic coupling between the ferrocene groups upon partial oxidation.