24389-79-5Relevant articles and documents
Versatile chiroptics of peptide-induced assemblies of metalloporphyrins
Jintoku, Hirokuni,Sagawa, Takashi,Sawada, Tsuyoshi,Takafuji, Makoto,Ihara, Hirotaka
, p. 1344 - 1350 (2010)
Zinc porphyrin functionalized with double long-chain alkylated l-glutamide (GTPP-Zn) was synthesized for the first time, and its self-assembling behaviour was investigated in nonpolar organic solvents. The uniqueness of this functionalized porphyrin is characterized by its drastic colour change from dark green to purple via the formation of chirally stacked structures through selective axial coordination on zinc with pyridine derivatives. In this paper, we report the versatility of the GTPP-Zn assembly process as a stimuli-responsive chiroptical switching system and describe the remarkable ligand-specific induction of secondary chirality accompanied by aggregation morphological change.
Synthesis of new porphyrin/fullerene supramolecular assemblies: A spectroscopic and electrochemical investigation of their coordination equilibrium in solution
Santos, Leandro J.,Carvalhoda-Silva, Dayse,Rebouas, Júlio S.,Alves, Marcos R.A.,Idemori, Ynara M.,Matencio, Tulio,Freitas, Rossimiriam P.,Alves, Rosemeire B.
supporting information; experimental part, p. 228 - 235 (2011/02/27)
Two new fullerene ligands have been designed to provide relatively simple frameworks to build supramolecular systems containing both fullerene and Zn-porphyrin moieties. The coordination of the fullerene ligands to the Zn-porphyrin was supported by UV-vis
Meso-tetrathienylporphyrins: Electrochemical and axial ligation properties
Bhyrappa,Bhavana
, p. 399 - 404 (2007/10/03)
5,10,15,20-Tetrakis(2′- and 3′-thienyl)porphyrins [H2T(2′-Thio)P and H2T(3′-Thio)P] and their metal [Zn(II) and Cu(II)] complexes were examined by electrochemical redox and axial ligation properties. A large anodic shift (100-150 mV) in reduction potentials was observed for MT(2′-Thio)Ps relative to MTPPs or MT(3′-Thio)Ps. MT(2′-Thio)Ps exhibited unusual redox behaviour and follows the trend in oxidation; CuT(2′-Thio)P>H2T(2 ′-Thio)P≥ZnT(2′-Thio)P in contrast to their corresponding MTPPs, H2TPP>CuTPP>ZnTPP. It is reflected in the enhanced equilibrium constants (60%) for the ligation of nitrogenous bases with ZnT(2′-Thio)P when compared to ZnTPP. This is interpreted in terms of increased electron deficient nature of the ZnT(2′-Thio)P in contrast to Zn(3′-Thio)P or ZnTPP.
