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Updated: Apr 15, 2026

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
Published on: April 19, 2019
Triphenylene-based tris-N-heterocyclic stannylenes
Chen-Yuan Hsu1, Li-Wei Chan, Gene-Hsiang Lee
1Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan. cwchiu@ntu.edu.tw.
Two novel N-heterocyclic stannylenes were synthesized using a hexaamino-triphenylene precursor. Their molecular structures and spectral properties were characterized, advancing organotin chemistry research.
Area of Science:
- Organometallic Chemistry
- Materials Science
Background:
- N-heterocyclic carbenes (NHCs) are versatile ligands in organometallic chemistry.
- Triphenylene derivatives offer unique structural scaffolds for novel materials.
Purpose of the Study:
- To synthesize and characterize novel planar tridentate N-heterocyclic stannylenes.
- To explore the structural and electronic properties of these organotin compounds.
Main Methods:
- Synthesis of stannylenes from 2,3,6,7,10,11-hexaamino-triphenylene and tin precursor.
- Characterization using multinuclear NMR spectroscopy.
- Analysis of electronic properties via absorption spectroscopy.
- X-ray crystallography for molecular structure determination of a key derivative.
Main Results:
- Successful synthesis of two planar tridentate N-heterocyclic stannylenes.
- Detailed multinuclear NMR and absorption spectral data reported.
- The molecular structure of the N-benzhydryl-substituted tris-stannylene was elucidated.
- These compounds exhibit unique electronic and structural features.
Conclusions:
- The study demonstrates a new synthetic route to N-heterocyclic stannylenes.
- The characterized compounds represent a new class of organotin materials.
- Further research can explore their applications in catalysis or materials science.
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