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Updated: Oct 3, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Dinuclear diazene iron and ruthenium complexes as models for studying nitrogenase activity
M Reiher1, O Salomon, D Sellmann
1Lehrstuhl für Theoretische Chemie, Universität Erlangen-Nürnberg, Erlangen, Germany. markus.reiher@chemie.uni-erlangen.de
Abstract:
The strength of hydrogen bonds has been investigated in various dinuclear diazene FeII, FeIII, and RuII complexes by use of the recently developed shared-electron number approach. Hydrogen bonding in these compounds plays an essential role in view of designing a model system for nitrogenase activity. The general conclusions for iron-sulfur complexes are: hydrogen bonds can stabilize diazene by at least 20% of the total coordination energy; the strength of the hydrogen bonds can be directly controlled through the hydrogen-sulfur bond length; reducing FeIII centers to FeII can double the hydrogen bond energy.
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