Dominik Lungerich

The time is ripe: The seasonal disappearance of chlorophyll has been a long-standing and striking biological enigma. In higher plants, chlorophyll is broken down by a largely common, regulated pathway to linear tetrapyrroles—phyllobilins—which are related to heme catabolites. They accumulate in degreened leaves and vegetables, as well as in ripening fruit, and are presumed to have relevant physiological functions.

[Review]
Bernhard Kräutler
Angew. Chem. Int. Ed., February 26, 2016, DOI: 10.1002/anie.201508928. Read article

The selective and predictable synthesis of structurally uniform carbon nanotubes (CNTs) represents a long-standing goal in both nanocarbon science and synthetic organic chemistry. This Review focuses on the studies toward controlled synthesis of CNTs with single chirality through the organic synthesis of CNT segments and the organic template-assisted growth of CNTs.

[Review]
Yasutomo Segawa, Akiko Yagi, Katsuma Matsui, Kenichiro Itami
Angew. Chem. Int. Ed., February 18, 2016, DOI: 10.1002/anie.201508384. Read article

Elijah E. Gordon, Ke Xu, Prof. Dr. Hongjun Xiang, Prof. Dr. Annette Bussmann-Holder, Dr. Reinhard K. Kremer, Prof. Dr. Arndt Simon, Prof. Dr. Jürgen Köhler and Prof. Dr. Myung-Hwan Whangbo

Under ultrahigh pressure (>110 GPa), H₂S is converted into a metallic phase that becomes superconducting with a record T_c of approximately 200 K. It is proposed that in this phase a dissociation of 2 H₂S into H₃S⁺ and SH⁻ is present, leading to the perovskite structure (SH⁻)(H₃S⁺). This phase consists of corner-sharing SH₆ octahedra with SH⁻ ions at the center of each S₈ cube.

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BODIPY sees red: para- and meta-quinodimethane-bridged BODIPY dimers (see example) absorb strongly around λ=1100 nm and have a small amount of diradical character (y). The dyes were found to have large two-photon-absorption cross-sections in the NIR region and showed selective fluorescence turn-on for the hydroxyl radical over other reactive oxygen species.

[Communication]
Yong Ni, Sangsu Lee, Minjung Son, Naoki Aratani, Masatoshi Ishida, Animesh Samanta, Hiroko Yamada, Young-Tae Chang, Hiroyuki Furuta, Dongho Kim, Jishan Wu
Angew. Chem. Int. Ed., January 25, 2016, DOI: 10.1002/anie.201511151. Read article