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Updated: Nov 8, 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
14.2K
Platinum(II) Complexes with 10-(Aryl)phenoxarsines: Synthesis, Cis/Trans Isomerization, and Luminescence
Milyausha F Galimova1, Temurbek A Begaliev2, Ekaterina M Zueva2
1Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences (RAS), 8 Arbuzov Street, 420088 Kazan, Russian Federation.
Inorganic Chemistry
|April 22, 2021
Summary
New platinum dihalide complexes with phenoxarsine ligands were synthesized and characterized. The platinum diiodide trans complexes show intense orange-red emission under UV light, attributed to a metal halide-centered triplet state.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Photophysics
Background:
- Platinum dihalide complexes are investigated for their unique photophysical properties.
- Phenoxarsine ligands offer tunable electronic and steric properties for metal complex design.
Purpose of the Study:
- To synthesize and characterize novel platinum dihalide complexes with 10-(aryl)phenoxarsine ligands.
- To investigate the structural, photophysical, and electronic properties of these complexes.
- To explore the emission behavior of platinum diiodide complexes under UV irradiation.
Main Methods:
- Synthesis of platinum dihalide complexes [PtHal2L2].
- Structural determination using NMR spectroscopy, mass spectrometry, and X-ray crystallography.
- Photophysical characterization including UV/vis absorption and emission spectroscopy.
- Computational analysis using density functional theory (DFT) and time-dependent DFT (TD-DFT).
Main Results:
- Successful synthesis of platinum dihalide complexes with various 10-(aryl)phenoxarsine ligands (Hal = Cl, I).
- Structures confirmed, and cis/trans isomerism in solution elucidated via NMR.
- Platinum diiodide trans complexes displayed intense orange-red emission in the solid state under UV light.
- Emission attributed to a metal halide-centered triplet state, supported by DFT calculations.
Conclusions:
- The synthesized platinum complexes exhibit interesting structural and photophysical properties.
- The emission observed in platinum diiodide trans complexes is linked to their specific electronic structure and solid-state packing.
- DFT calculations provide valuable insights into the electronic transitions governing the observed optical properties.
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