Dalton Transactions

doi: 10.1039/c8dt90200cpmid: N/A

doi: 10.1039/C8DT90200Cpmid: N/A

doi: 10.1039/C8DT90201Apmid: N/A

doi: 10.1039/c8dt90201apmid: N/A

doi: 10.1039/c8dt90202jpmid: N/A

doi: 10.1039/C8DT90202Jpmid: N/A

Chaudhari, Nitin K.; Yu, Peng; Kim, Byeongyoon; Lee, Kwangyeol; Li, Jinghong

doi: 10.1039/c8dt03408gpmid: 30318522

Rational design and synthesis of efficient hydrogen evolution reaction (HER) electrocatalysts from Earth-abundant elements are essential for the development of economical water-splitting processes. This Frontier article will highlight the recent development and advances in designing ferric phosphide (FeP) based electrode materials for the HER.

Saracini, Claudio; Fukuzumi, Shunichi; Lee, Yong-Min; Nam, Wonwoo

doi: 10.1039/c8dt03604gpmid: 30324192

Recent advances on the excited state chemistry of metal–oxygen synthetic complexes based on earth-abundant metals such as copper, cobalt, and manganese are reviewed to show a much enhanced reactivity of the photoexcited states as compared with their relative ground states. Mononuclear copper(ii)-superoxide and dinuclear copper(ii)-peroxo complexes underwent copper–oxygen bond cleavage, dioxygen release, and copper(i)/dioxygen rebinding upon photoexcitation at low temperature. Photoirradiation of the cobalt–oxygen compound [(TAML)CoIV(O)]2− (6) (TAML = tetraamidomacrocyclic ligand) at 5 °C yielded a cobalt–oxygen excited state with 0.6(1) ns lifetime, showing a high reactivity in the bimolecular electron-transfer oxidations of m-xylene and anisole. An extremely long-lived excited state was generated upon photoexcitation of a manganese(iv)-oxo complex binding two Sc(OTf)3 molecules, which enabled the hydroxylation of benzene.

Yoshimura, Takashi; Nagata, Kojiro; Shiroyama, Tatsuki; Kino, Yasushi; Takayama, Tsutomu; Sekine, Tsutomu; Shinohara, Atsushi

doi: 10.1039/c8dt02935kpmid: 30311926

A novel, luminescent technetium complex, [TcN(CN)2bpa] (bpa = bis-(2-pyridylmethyl)amine), with tridentate ligand coordination sites was synthesized and characterized. Photoemission with a maximum wavelength at 666 nm was observed in the solid-state at 296 K.

Elsayed Moussa, Mehdi; Piesch, Martin; Fleischmann, Martin; Schreiner, Andrea; Seidl, Michael; Scheer, Manfred

doi: 10.1039/c8dt03723jpmid: 30321246

The synthesis of the air-stable and highly soluble Cu(i)-acetonitrile salts [Cu(CH3CN)3.5][FAl] (1) ([FAl] = FAl{OC(C6F10)(C6F5)}3) and [Cu(CH3CN)4][TEF] (2) ([TEF] = Al{OC(CF3)3}4) is presented. Compound 1 reacts with the organometallic polyphosphorus complexes [Cp2Mo2(CO)4(η2-P2)] (A) and [(Cp*Fe(η5-P5)] (B) and salt 2 reacts with B to form one new (3) and three unprecedented (4–6) phosphorus-rich Cu(i) dimers with the general formulas [Cu2(μ,η1:η1-A)2(η2-A)2][FAl]2 (3), [Cu2(μ,η1:η1-A)2(η1-CH3CN)4][FAl]2 (4), [Cu2(μ,η1:η1-B)2(η1-CH3CN)4][FAl]2 (5) and [Cu2(μ,η1:η1-B)2(η1-CH3CN)4][TEF]2 (6).