AngewandteA Journal of the Gesellschaft Deutscher Chemiker

Chemiewww.angewandte.org

Angew

andte Chem

ie International Edition 2013, Num

ber 31, Pages 7889–

8170

International Edition

ACIEF5 52 (31) 7889–8170 (2013) · ISSN 1433–7851 · Vol. 52 · No. 31

2013–52/31

Schistosomiasis Chemotherapy Review by A. Robert, B. Meunier et al.Flexible Carbon Materials Highlight by A.-H. Lu et al.Porous Single Crystals Highlight by P. Schmuki and S. So

Host–Guest CatalysisA water-soluble [Fe4L6] capsule catalyzes the hy-drolysis of the neurotoxic organophosphate di-chlorvos. J. R. Nitschke and co-workers show intheir Communication on page 7958 ff. that dichlor-vos is hydrolyzed in the capsule and the water solubleproducts released from it.

Surface Plasmon ResonancesIn their Communication on page 8079 ff., M. AFiller and L.-W. Chou report the synthesis ofsilicon nanowires containing multiple, axiallyregistered, doped regions, which are investigatedby infrared spectroscopy.

ElectrocatalysisIn their Communication on page 8050 ff. Y.Yamauchi et al. report self-supported platinumnanorods that are prepared by electrochemicalassembly of platinum-containing micelles in thepores of a polycarbonate membrane.

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… with controllable structures and flexible internal surfaces have been fabricatedfrom controllably evolved water/oil/water emulsions, as described by L.-Y. Chuet al. in their Communication on page 8084 ff. These microparticles could be used asmicrocontainers for controlled capture/release and as microreactors for confinedreactions.

Angewandte Chemie International Edition isa journal of the Gesellschaft DeutscherChemiker (GDCh), the largest chemistry-related scientific society in continentalEurope. Information on the various activ-ities and services of the GDCh, for example,cheaper subscription to Angewandte Che-mie International Edition, as well as applica-tions for membership can be found atwww.gdch.de or can be requested fromGDCh, Postfach 900440, D-60444 Frank-furt am Main, Germany.

AngewandteChemieHole–shell microparticles …

7891Angew. Chem. Int. Ed. 2013, 52, 7891 � 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim www.angewandte.org

Semiconductor Plasmonics

L.-W. Chou, M. A. Filler* 8079 – 8083

Engineering Multimodal LocalizedSurface Plasmon Resonances in SiliconNanowires

Microfabrication

W. Wang, M.-J. Zhang, R. Xie, X.-J. Ju,C. Yang, C.-L. Mou, D. A. Weitz,L.-Y. Chu* 8084 – 8087

Hole–Shell Microparticles fromControllably Evolved Double Emulsions

Ferroelectricity

H. Taniguchi,* A. Kuwabara, J. Kim,Y. Kim, H. Moriwake, S. Kim,T. Hoshiyama, T. Koyama, S. Mori,M. Takata, H. Hosono, Y. Inaguma,M. Itoh 8088 – 8092

Ferroelectricity Driven by Twisting ofSilicate Tetrahedral Chains

Radical Reactions

S. Hamada, T. Furuta, Y. Wada,T. Kawabata* 8093 – 8097

Chemoselective Oxidation byElectronically Tuned Nitroxyl RadicalCatalysts

AngewandteChemie

7903Angew. Chem. Int. Ed. 2013, 52, 7893 – 7909 � 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim www.angewandte.org

Multimodal plasmonic resonances : Sili-con nanowires that contain multiple,dimensionally controlled, axially regis-tered doped regions were synthesized andinvestigated by angle-dependent mid-infrared spectroscopy (see picture; P =

partial pressure). The wires support mid-infrared multimodal localized surfaceplasmon resonances.

Hole in one! Hole–shell microparticles(blue, see picture) with controllablestructures and flexible internal surfaceshave been fabricated from W/O/W emul-sions. These microparticles could be usedas microcontainers for the controlledcapture/release of molecules, micro-sphere classification/separation, confinedcell culture, or as microreactors for catal-ysis.

A lead-free ferroelectric : The occurrence offerroelectricity is demonstrated in a sili-cate-based compound (Bi2SiO5, see pic-ture), by direct observation of polarizationswitching. The mechanism of ferroelec-tricity in Bi2SiO5 has been studied byRaman scattering, transmission electronmicroscopy, X-ray powder diffraction, andfirst-principles calculations. The observedferroelectricity stems from twisting of theone-dimensional SiO4 tetrahedral chain.

Electronic tuning: Nitroxyl radical 1 isshown to be an efficient catalyst for theoxidation of secondary alcohols, andpromotes oxidation through an oxo-ammonium species which is highly reac-tive because of the adjacent electron-

withdrawing ester groups. Chemoselec-tive oxidation of benzylic alcohols in thepresence of aliphatic alcohols is observedand is proposed to proceed by a rate-determining hydride transfer.