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Updated: May 21, 2026
10:51
The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Pnictogen-thiacrown complexes with Pt(II) and Pd(II)
1Department of Chemistry, #2252, University of Tennessee @ Chattanooga, Chattanooga, TN 37403, USA. Greg-Grant@utc.edu
Dalton Transactions (Cambridge, England : 2003)
|June 26, 2012
Summary
This review covers platinum and palladium complexes with trithiacrown ligands and Group 15 donors. Their geometry and electronic properties are sensitive to ligand donor strength, impacting axial metal-sulfur interactions.
Area of Science:
- Coordination Chemistry
- Organometallic Chemistry
- Materials Science
Background:
- Trithiacrown ([9]aneS(3)) ligands form complexes with platinum(II) and palladium(II).
- Group 15 elements (pnictogens) act as donors in these complexes.
- Previous studies have explored various metal complexes with macrocyclic ligands.
Purpose of the Study:
- To review platinum and palladium complexes featuring the [9]aneS(3) ligand and Group 15 donors.
- To analyze the structural, spectroscopic, and electronic properties of these complexes.
- To discuss the influence of ligand donor strength on complex geometry.
Main Methods:
- Crystallographic characterization of over seventy complexes.
- Analysis of NMR spectroscopy data.
- Investigation of redox and electronic spectroscopy.
Main Results:
- Complexes adopt an elongated square pyramidal geometry with a long axial metal-sulfur bond.
- Axial bond length correlates with the donor ability of the Group 15 ligand (e.g., Sb/As vs. N).
- Platinum(II) complexes with triphenylphosphine, arsine, or stibine ligands show distortion towards trigonal bipyramidal geometry due to pi-pi interactions.
Conclusions:
- The electronic properties of Group 15 donors significantly influence the geometry of platinum and palladium [9]aneS(3) complexes.
- Axial metal-sulfur bond distances are sensitive indicators of ligand donor strength.
- Intramolecular interactions can lead to significant geometric distortions in these metal complexes.
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