Tetrahedron p. 7679 - 7688 (1992)
Update date:2022-09-26
Topics: Synthesis Characterization binding affinity Porphyrins X-ray crystallography Synthetic Host molecules Face-to-face
Danks, Ian P.
Lane, Trevor G.
Sutherland, Ian O.
Yap, Maurice
The bis-zincporphyrins 9 and 11 were prepared from the bis-(3′-hydroxyphenyl)-porphyrin 6. Both bis-zincporphyrins formed complexes in CHCl3 with a variety of amines and showed a strong preference for diamines, such as H2N(CH2)nNH2 and 4,4′-dipyridyl. The limited degree of chain length recognition for the diamine guests by both hosts is associated with conformational flexibility of both host and guest but the rigid guest, 4,4′-dipyridyl, is selectively complexed through operation of the chelate effect.
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