Journal ArticleDOI
Alkali Metal‐Transition Metal π‐Complexes
Klaus Jonas,Carl Krüger +1 more
TLDR
In this paper, a new principle is described for the synthesis of multimetal π-complexes with hitherto unknown structural features, which can be obtained from metallocenes, alkali metals, and unsaturated compounds.Abstract:
In this progress report a new principle is described for the synthesis of multimetal π-complexes with hitherto unknown structural features. The nickel(0)-olefin complexes 1,5,9-cyclododecatrienenickel(0) and bis(1,5-cyclooctadiene)nickel(0) react unexpectedly with main-group metals, in particular alkali metals, their hydrides, and organometallic compounds, to give nickelligand species with a surplus charge. These species endeavor to transfer the excess charge onto π-ligands such as olefins or dinitrogen. Multimetal complexes with electron rich transition metal π-ligand units can, in addition, be prepared from metallocenes, alkali metals, and unsaturated compounds. The syntheses, structures, and reactions of this new class of substances will be summarized.read more
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Journal ArticleDOI
Coming of Age: Sustainable Iron‐Catalyzed Cross‐Coupling Reactions
TL;DR: This Review intends to shed light onto the versatility that iron-catalyzed cross-coupling reactions offer, summarize major achievements, and clear the way for further use of such superior methodologies in the synthesis of fine chemicals, bioactive molecules, and materials.
Journal ArticleDOI
Preparation, Structure, and Reactivity of Nonstabilized Organoiron Compounds. Implications for Iron-Catalyzed Cross Coupling Reactions
TL;DR: It is shown that nucleophiles unable to undergo beta-hydride elimination, such as MeLi, PhLi, or PhMgBr, rapidly reduce Fe(3+) to Fe(2+) and then exhaustively alkylate the metal center.
Book ChapterDOI
X-ray structural analyses of organolithium compounds
TL;DR: In this article, the X-ray structural analyses of organolithium compounds have been discussed, and a number of mixed-metal organometallic compounds with a single contact between lithium and a carbon atom have been characterized.
Journal ArticleDOI
Developing more sustainable processes for ammonia synthesis
TL;DR: In this article, a transition metal-dinitrogen-bridged dimolybdenum complex bearing two PNP-type pincer ligands was used as a catalyst for the conversion of molecular dinitrogen into ammonia or ammonia equivalent, silylamine.
Journal ArticleDOI
Nitrogen fixation in solution
T. A. Bazhenova,A. E. Shilov +1 more
TL;DR: In this paper, the structure of N 2 complexes with transition metals is discussed in relation to the mechanism of dinitrogen reduction in the metal coordination sphere, which helps in understanding the requirements for a complex to be a catalyst for N 2 reduction in protic media under the action of mild reducing agents.