Face to face porphyrins as synthetic host molecules
作者:Ian P. Danks、Trevor G. Lane、Ian O. Sutherland、Maurice Yap
DOI:10.1016/s0040-4020(01)90379-5
日期:1992.9
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.