Tetrahedron p. 3453 - 3462 (1994)
Update date:2022-08-03
Topics:
Poh, Bo-Long
Tan, Chi Ming
The stability constants K of the 1:1 host to guest complexes formed between the cyclic tetramer, cyclotetrachromotropylene, and amino acids in water at pD 7.0 and 25 deg C were determined by 1H nmr spectroscopy.The results indicate that the interactions between the aromatic ?-bonds of the host and the C-H bonds (for aliphatic amino acids) and aromatic ?-bonds (for aromatic amino acids) of the guests are the major factors responsible for the complexation.There is a linear relationship between log K and the number of C-H bonds interacting with the hydrophobic host cavity.
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