MOLECULAR RECOGNITION OF ALPHA,OMEGA-DIAMINES BY METALLOPORPHYRIN DIMER

Authors
HAYASHI T NONOGUCHI M AYA T OGOSHI H
Citation
T. Hayashi et al., MOLECULAR RECOGNITION OF ALPHA,OMEGA-DIAMINES BY METALLOPORPHYRIN DIMER, Tetrahedron letters, 38(9), 1997, pp. 1603-1606
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
38
Issue
9
Year of publication
1997
Pages
1603 - 1606
Database
ISI
SICI code
0040-4039(1997)38:9<1603:MROABM>2.0.ZU;2-4
Abstract
Porphyrin dimer linked with chiral binaphthyl derivative was prepared as a ditopic coreceptor for a series of diamines. Its zinc complex sho ws the good affinity for alpha,omega-diamines H2N(CH2)(n)NH2 (n = 6, 8 , 10, 12; K-a = 10(5) - 10(6) M(-1) in CH2Cl2 at 15 degrees C). These complexes gave the significant bisignate CD spectra due to the exciton coupling between two zinc porphyrins and its intensity depends on the length of diamine. The CD spectrum in the complex reflects angle and flexibility of the chiral twist between two zinc porphyrin units. (C) 1997 Elsevier Science Ltd.