Oligonuclear Gallium Nitrogen Cage Compounds: Molecular Intermediates on the Way from Gallium Hydrazides to Gallium Nitride

Organozinc hydrazides and their derivatives: synthesis, structural diversity and applications

This review highlights the synthetic aspects, structural diversity and possible applications of organozinc hydrazides and their derivatives.

Thiolate-Bridged Dicobalt Complexes Bearing Hydrazine, Hydrazido, and Diazenido Ligands: Synthesis, Structural Characterization, and Interconversion

Synthetic di- or multimetallic complexes bearing N_xH_y nitrogenous ligands in a sulfur-rich coordination environment have attracted considerable attention due to their importance in evaluating the complex mechanism of biological nitrogen fixation. Herein, we report a series of thiolate-bridged dicobalt N_xH_y species obtained by treatment of Co^IIICo^III precursor with hydrazine and its substituted derivatives at ambient temperature. Remarkably, when the substituent is the cyclohexyl group, the resulting species can interconvert through different pathways. This Co₂S₂ skeleton provides a new model system for obtaining valuable information about the early N₂H_x-bound intermediate species during the catalytic cycle of nitrogenase.

Can molecular cages be effective at small molecule activation? A computational investigation

Several approaches have been investigated in recent years in the area of small molecule activation. The current work introduces a new concept in this field: that of molecular cages, containing only main group elements, serving to activate small molecules. Full quantum mechanical calculations employing DFT/SCS-MP2 methods indicate that recently synthesized Ga-N cage compounds would be excellent candidates for mediating in important reactions such as the catalysis of ammonia borane dehydrogenation. The current work therefore opens up exciting new possibilities in small molecule activation research.