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Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
Published on: October 24, 2017
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1,2-Bis(triazolyl)tetraphenyldigermanes: Synthesis, Structure and Properties.
Kirill V Zaitsev1, Gleb A Veshchitsky1, Yuri F Oprunenko1
1Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 3, 119991, Moscow, Russia.
Chemistry, an Asian Journal
|October 27, 2023
Summary
Novel heterocyclic digermanes were synthesized using a [3+2] cycloaddition reaction. These unique bitriazole compounds exhibit effective conjugation, offering new possibilities in materials science.
Area of Science:
- Organometallic Chemistry
- Heterocyclic Chemistry
- Materials Science
Background:
- Synthesis of novel heterocyclic digermanes is challenging.
- Cycloaddition reactions offer potential routes to complex structures.
Purpose of the Study:
- To synthesize novel heterocyclic digermanes via [3+2] cycloaddition.
- To characterize the structure and properties of the synthesized compounds.
- To explore their electronic and photophysical properties.
Main Methods:
- [3+2] cycloaddition reaction between [HC≡C-GePh2-]2 and various RCH2N3 azides.
- NMR spectroscopy and X-ray diffraction (XRD) for structural analysis.
- UV/vis and luminescence emission spectroscopy, electrochemistry, and DFT calculations for property evaluation.
Main Results:
- Successful synthesis of a series of novel heterocyclic digermanes, bitriazoles [1,4-C2HN3(CH2R)GePh2-]2, compounds 2-12.
- Detailed structural elucidation using NMR and XRD for specific compounds.
- Demonstrated effective conjugation within the molecules through spectroscopic and computational studies.
Conclusions:
- The [3+2] cycloaddition provides an efficient route to synthesize complex heterocyclic digermanes.
- The synthesized bitriazoles possess interesting electronic and photophysical properties due to effective conjugation.
- These compounds represent a new class of materials with potential applications.
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