Cover Picture Mixed Spin-State [HS-LS] Pairs in a Dinuclear Spin-Transition Complex Confirmation by Variable-Temperature 57Fe Mssbauer Spectroscopy (Angew. Chem. Int. Ed. 162008)код для вставкиСкачать
D 3461 www.angewandte.org ALERTS and RSS FEEDS Free Subscription Nanomaterials for Lithium Batteries P. G. Bruce et al. Prebiotic Chemistry P. Cintas Total Synthesis of Spirastrellolide A M. V. Perkins [3+2] Cycloadditions of Trimethylenemethane W. Tam and P. Le Marquand ACIEFS 47 (16) 2893–3066 (2008) · ISSN 1433–7851 · Vol. 47 · No. 16 2008–47/16 Cover Picture C. Matthias Grunert, Sergey Reiman, Hartmut Spiering, Jonathan A. Kitchen, Sally Brooker,* and Philipp G"tlich* Spin crossover in the highly constrained, doubly triazole-bridged complex [FeII2(pmat)2](BF4)4·DMF is shown by standard, easily accessible, temperaturedependent Mçssbauer spectroscopy to proceed via a low-spin/high-spin [LS-HS] species and not a 1:1 mixture of [LS-LS]:[HS-HS] species. S. Brooker, P. G1tlich, and co-workers reveal in their Communication on page 2997 ff. that, without resorting to magnetic-field measurements, the subtle differences between HS FeII in a [HS-HS] pair and in a [LS-HS] pair can be identified. Lithium Batteries Nanomaterials are pivotal for the future research into rechargeable lithium batteries, as they can significantly increase their energy and current density. In their Review on page 2930 ff. P. G. Bruce et al. investigate current advances in the area. Branched Nanotubes Sulfur plays a crucial role in triggering nanotube branching. Its incorporation into the sp2 carbon network leads to bud formation. The full mechanism is explained by M. Terrones et al. in their Communication on page 2948 ff. Natural Product Synthesis In two Communications on pages 3016 ff. and 3021 ff. I. Paterson and co-workers describe the final steps in the synthesis of spirastrellolide A methyl ester. The marine macrolide is a lead for anticancer therapies.