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Frontispiece: HN 2 O 2 − as a Ligand in Mononuclear Hydrogenhyponitrite‐κ 2 ‐ N , O Ruthenium Complexes with Bisphosphane Co‐Ligands
Author(s) -
Beck Daniel,
Klüfers Peter
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201886064
Subject(s) - ruthenium , ligand (biochemistry) , reactivity (psychology) , chemistry , protonation , catalysis , ruthenium oxide , catalytic cycle , nitric oxide , medicinal chemistry , stereochemistry , organic chemistry , ion , medicine , biochemistry , receptor , alternative medicine , pathology
The nitrogen cycle is a process in nature to sustain a living environment. A nitric‐oxide‐to‐nitrous‐oxide step via hyponitrite is easily modeled with marbles but hardly substantiated in its details. There are many hypotheses around the tentative, highly reactive hyponitrite intermediate and its coordination to the iron atoms in the active site of nitric‐oxide reductase. Now, another puzzle piece was obtained by the synthesis and characterization of mononuclear ruthenium complexes, which show the hyponitrite intermediate in its partly protonated HN 2 O 2 − form. As opposed to its reactivity in the catalytic cycle, trans‐hydrogenhyponitrite, a weak‐field ligand, reveals itself to be stable in the ruthenium environment. For more information, see the Full Paper by P. Klüfers and D. Beck on page 16019 ff.