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Updated: Jun 1, 2026

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
N,N'-Bis(2-thienylmethyl-ene)benzene-1,4-diamine
Nai-Wei Dong1, Dong-Xue Jia, Chun-Li Gan
1School of Pharmaceutical Science, Harbin Medical University, Harbin 150086, People's Republic of China.
A novel Schiff base, C(16)H(12)N(2)S(2), was synthesized using thiophene-2-carbaldehyde and benzene-1,4-diamine. Structural analysis revealed a specific dihedral angle between the aromatic rings.
Area of Science:
- Organic Chemistry
- Crystallography
Background:
- Schiff bases are versatile organic compounds with diverse applications.
- Understanding the structural properties of novel Schiff bases is crucial for materials science.
Purpose of the Study:
- To synthesize a new Schiff base compound.
- To characterize the synthesized Schiff base using crystallographic methods.
Main Methods:
- Synthesis via refluxing ethano-lic solution of thiophene-2-carbaldehyde and benzene-1,4-diamine.
- Single-crystal X-ray diffraction for structural determination.
Main Results:
- Successful synthesis of the Schiff base C(16)H(12)N(2)S(2).
- Crystallographic analysis confirmed the presence of a crystallographic center of inversion.
- The dihedral angle between the benzene and thiophene rings was determined to be 63.6(1)°.
Conclusions:
- The synthesized Schiff base possesses a defined three-dimensional structure.
- The crystallographic data provides valuable insights into the molecular geometry and potential applications.
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