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Supramolecular Assembly of Tetramethylcucurbit[6]uril and 2-Picolylamine.

Ying FanRan CenPeihui ShanCarl RedshawHang CongXin XiaoQingmei Ge
Published in: ACS omega (2023)
The supramolecular assembly of symmetrical tetramethylcucurbit[6]uril (TMeQ[6]) and 2-picolylamine (AMPy) has been investigated via various techniques, including ultraviolet-visible (UV-vis) and nuclear magnetic resonance spectroscopy, isothermal titration calorimetry (ITC), and X-ray crystallography. The results indicated that TMeQ[6] could encapsulate the AMPy guest molecule to form a stable inclusion complex. The rotational restriction of the guest in the cavity of TMeQ[6] resulted in a large negative value of entropy. The X-ray crystal structure of the 1:1 inclusion complex between TMeQ[6] and AMPy revealed that AMPy exists in the elliptical cavity of TMeQ[6].
Keyphrases
  • water soluble
  • high resolution
  • dual energy
  • energy transfer
  • magnetic resonance imaging
  • atomic force microscopy
  • computed tomography
  • mass spectrometry