Cover Picture: Self-Assembly of Stereoselective, Mononuclear, Triple-Stranded Helicate Complexes ML3 with Trivalent Scandium and Lanthanide Metal Ions − Quantitative Transmetallation of the Lanthanide(III) Ion by Sodium(I) Ions (Eur. J. Inorg. Chem. 17/2004)

✍ Scribed by Magdalena Capó; José Gonzalez; Harry Adams

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 68 KB
• Volume: 2004
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/ejic.200490034

✦ Synopsis

Abstract

The cover picture shows a stereoselective mononuclear triple‐stranded helicate complex. Three chiral binaphthol N‐oxide derivative ligands are coordinated to a trivalent ytterbium metal atom. This very stable and symmetrical structure was obtained by spontaneous self‐assembly. NMR spectroscopy and X‐ray crystallography were used for unambiguous characterisation. In the picture, the greenish sphere indicates the ytterbium atom and the larger spheres indicate the oxygen atoms. All those ligands, depicted in different shades to highlight the helical effect, are identical. Details are discussed in the article by M. Capó et al. on p. 3405 ff.