Citation: Longfei MA, Fang SI, Congjie PAN, Xinhua WANG. Synthesis and crystal structure of extended tetrathiafulvalene derivatives and cupric bromide charge transfer complexes[J]. Chinese Journal of Inorganic Chemistry, ;2026, 42(6): 1229-1236. doi: 10.11862/CJIC.20250355 shu

Synthesis and crystal structure of extended tetrathiafulvalene derivatives and cupric bromide charge transfer complexes

Longfei MA ^1,, ,
Fang SI ¹ ,
Congjie PAN ² ,
Xinhua WANG ^1,,

1.
Department of Criminal Science and Technology, Henan Police College, Zhengzhou 450046, China
2.
School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China

Corresponding author: Longfei MA, malongfei@hnp.edu.cn Xinhua WANG, gyxxwxh@163.com
Received Date: 26 November 2025
Revised Date: 17 April 2026

Figures(8)

Three charge-transfer complexes, (T1)[Cu₂Br₆]·2THF, (T2)[Cu₂Br₆]·2THF, and (T3)[Cu₂Br₆], have been prepared via diffusion methods comprising extended tetrathiafulvalene (exTTF) derivatives C₁₄H₈(C₃S₂(S-R)₂)₂ [R=phenyl (T1), thiophen-2-yl (T2), pyridin-2-yl (T3)] and CuBr₂. Crystallographic studies indicate that T1²⁺, T2²⁺, and T3²⁺ present different molecular configurations, while [Cu₂Br₆]^2- anions exhibit two different coordination configurations (planar and octahedral), which further lead to different crystal packing structures of the three complexes. Notably, altering the peripheral aryl groups of exTTF derivatives can effectively regulate the anion configuration, and compounds T1-T3 can flexibly adjust their own configurations to match the anion structure and crystal packing requirements, thereby providing a solid basis for designing tunable supramolecular materials with potential optoelectronic applications.
- tetrathiafulvalene derivative,
- cupric bromide,
- charge transfer complexes,
- crystal structure
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