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Updated: Oct 21, 2025
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Synthesis of In37P20O2CR51 Clusters and Their Conversion to InP Quantum Dots
Published on: May 7, 2019
10.0K
Luminescent Cu4I4-cubane clusters based on N-methyl-5,10-dihydrophenarsazines
Milyausha F Galimova1, Ekaterina M Zueva2, Alexey B Dobrynin1
1Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, Kazan 420088, Russian Federation. milya1949@mail.ru.
Dalton Transactions (Cambridge, England : 2003)
|September 3, 2021
Summary
Two novel luminescent copper iodide cubane tetramers were synthesized. Their unique dual-band emission arises from distinct triplet states, differing from related arsenic-containing compounds.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Photochemistry
Background:
- Tetranuclear copper iodide cubane clusters are known for their luminescent properties.
- Previous studies focused on clusters with phenoxarsine ligands.
Purpose of the Study:
- To synthesize and characterize novel luminescent Cu4I4-cubane tetramers with N-methyl-10-(p-halogenophenyl)-5,10-dihydrophenarsazine ligands.
- To investigate and compare their luminescence behavior with related arsenic-containing analogues.
Main Methods:
- Synthesis and characterization using NMR spectroscopy, mass spectrometry, elemental analysis, and single-crystal X-ray diffraction.
- UV-Vis absorption and emission spectroscopy.
- Density Functional Theory (DFT) and time-dependent DFT calculations.
Main Results:
- Successful synthesis and structural confirmation of two luminescent Cu4I4-cubane tetramers.
- Observation of temperature-dependent dual-band emission in crystalline powders.
- Attribution of low-energy emission to cluster-centered (3CC) triplet state and high-energy emission to intraligand (3IL) triplet state.
Conclusions:
- The synthesized copper iodide cubane tetramers exhibit distinct luminescence properties compared to arsenic analogues.
- The dual-band emission mechanism provides insight into the excited states of these metal-organic complexes.
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