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Updated: Jul 30, 2025
07:20
Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
Published on: May 28, 2014
14.0K
Structural modifications to platinum(II) pincer complexes resulting in changes in their vapochromic and
Mathew J Bryant1, Sara Fuertes2, Lauren E Hatcher3
1Department of Chemistry, University of Bath, Bath BA2 7AY, UK. p.r.raithby@bath.ac.uk.
Faraday Discussions
|May 15, 2023
Summary
New platinum pincer complexes offer rapid detection of volatile organic solvents (VOCs). These compounds exhibit color changes in response to solvents, enabling sensitive chemical sensing applications.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Chemical Sensing
Background:
- Developing rapidly responsive chemical sensors for detecting low concentrations of volatile organic solvents (VOCs) is crucial.
- Platinum pincer complexes show potential as sensors due to their colorimetric and responsive properties.
Purpose of the Study:
- Investigate a series of Pt(II) complexes with a 1,3-di(pyridine)benzene tridentate skeleton for sensing applications.
- Correlate structural properties with observed vapochromic and solvatochromic behaviors.
Main Methods:
- Synthesis of [Pt(N⁁C(R)⁁N)(CN)] complexes (R = C(O)Me, C(O)OEt, C(O)OPh).
- Testing solid-state samples with various volatile organic solvents (VOCs) and water.
- Analysis using X-ray powder and single crystal X-ray diffraction.
Main Results:
- Complexes 3 and 4 demonstrated rapidly reversible vapochromism and solvatochromism.
- Complex 2 exhibited thermochromism.
- Structural analysis revealed hydrogen bonding involving the cyanide ligand and substituents, influencing void spaces and Pt⋯Pt separation.
Conclusions:
- The studied platinum pincer complexes show promise for developing advanced chemical sensors.
- Structural features, including hydrogen bonding and void spaces, are key to their responsive sensing mechanisms.
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