Synthesis and properties of Zn-porphyrin with bipyridine-terminated side chains: large conformational change induced by metal complexation

Autor: Masatoshi Kozaki, Keiji Okada, Shuichi Suzuki, Mutsumi Kato, Erika Hashimoto
Rok vydání: 2012
Předmět:
Zdroj: Tetrahedron Letters. 53:309-312
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2011.11.041
Popis: Zinc porphyrin ( 1 ) containing 2,2′-bipyridyl units at the peripheral ends of both conjugated and alkyl side chains was prepared. Upon addition of Fe(II), the three bipyridyl terminals at both ends bind to Fe(II)s to form 1:2 complex 1 ·2Fe. The formation of 1 ·2Fe induced a large conformational change in the alkyl side chains and moderately affected the binding between the zinc porphyrin and an imidazole ligand. These results show that this method is useful for the communication between the porphyrin functional site and the remote metal-binding site.
Databáze: OpenAIRE