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Updated: Sep 14, 2025

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Nickel-ruthenium heterobimetallic complexes of a dinucleating unsymmetrical pincer ligand
Vuyelwa Ngwenya1, Michael A Stevens1, Michael G Gardiner1
1Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia. annie.colebatch@anu.edu.au.
Abstract:
We report the first examples of complexes of an unsymmetrical, dinucelating PNNNN ligand containing a PNN pincer pocket and bidentate NN binding pocket. The proton-responsive nature of the pyrazole ligand core allows stepwise synthesis of heterobimetallic complexes via monometallic nickel and ruthenium complexes. Selectivity for the PNN pincer pocket is observed with Ni, whereas complexation to the bidentate NN-pocket is favoured with more sterically encumbered Ru complexes. Heterobimetallic NiFe and NiRu complexes were prepared, with metal-metal distances ranging from 3.7514(8) to 4.5305(9) Å.
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