In a Review, J. Reedijk et al. put anion–π interactions into perspective. What is the physical nature of the interaction how can it be used in the design of hosts and the engineering of solid-state structures? In a Minireview, J. M. Shreeve et al. discuss ionic liquids as hypergolic fuels. V. A. Erdmann and J. Barciszewski look back at the discovery of the genetic code 50 years ago in an Essay. The Highlights deal with the biosynthesis and charging of pyrrolysine, the 22nd genetically encoded amino acid (C. Hertweck) and the hydrogenation of CO at a uranium(III) center (O. P. Lam and K. Meyer).
In the Communications section, M. Beller et al. describe the production of hydrogen from alcohols under mild reaction conditions. G. C. Lloyd-Jones et al. investigated the E/Z isomerization of alkenes in the presence of catalytic [(RCN)2PdCl2] complexes, which proceeds through an in situ generated Pd-H species. G. Rothenberg et al. succeeded in the synthesis of a difunctional catalyst which combines acid and base functions on mesoporous silica supports (see picture).
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