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Citation: Peng Xiaoxia. Synthesis and Complexing Capacity of Two Triptycene-Based Molecular Tweezers[J]. Chemistry, ;2016, 79(5): 448-452. shu

Synthesis and Complexing Capacity of Two Triptycene-Based Molecular Tweezers

Peng Xiaoxia

1.
Langfang Teachers University, Langfang 065000

Received Date: 27 August 2015
Available Online: 14 November 2015
Fund Project:

Triptycene-based molecular tweezers 1 and 2 have been synthesized, their structure were characterized by ¹H NMR, ¹³C NMR, MALDI-TOF, Elemental analysis and X-ray crystallography. The interactions between hosts and seven electron-deficient guests in solution were studied by ¹H NMR titration and ESI-MS. The results showed that: 1) 1:1 complexes were formed between most of the hosts and guests; 2) host 1 has better binding ability than host 2; 3) the hosts would selectively bind with the electron-deficient guests. Moreover, the complexing behavior of 1·G1 was simulated by the program ORTEP 1.076, which suggested that the noncovalent interactions play important roles in the formation of sandwich-type host-guest complexes.
- Triptycene,
- Molecular tweezers,
- Host-guest chemistry,
- ¹H NMR titration
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