Enhanced Electron Transfer by Dendritic Architecture:  Energy Transfer and Electron Transfer in Snowflake-Shaped Zn Porphyrin Dendrimers

Abstract

[structure: see text] Photoinduced electron transfer was observed for the snowflake-shaped dendrimer with the Zn porphyrin core and anthraquinonyl terminals. Comparison of the electron-transfer efficiency of the dendrimer with the linear analogues indicates the advantage of the dendritic structure for the electron-transfer process.

Synthesis and Characterization of Subporphyrins with Dendritic Carbazole Arms

“…Other chemicals were used as received. 3,6‐Di‐ tert ‐butyl‐9 H ‐carbazole ( 4 ),11 3,6‐diiodo‐9‐tosyl‐9 H ‐carbazole ( 6 ),10c and compound 7 7l,8c were prepared according to the literature. Tri(pyrrol‐1‐yl)borane was prepared from LiBH 4 and pyrrole by the reported procedure and was converted into pyridine–tri(pyrrol‐1‐yl)borane ( 13 ) by treatment with dry pyridine under N 2 12 .…”

[meso-Tetrakis(4-heptyloxyphenyl)porphyrinato]nickel(II)

“…For related structures, see: Scheidt (1977); Maclean et al (1996); Jentzen et al (1996). For background to porphyrins and metalloporphyrins, see: Kozaki et al (2007); Kuciauskas et al (1996); Suslick et al (2005); Liu et al (1985); Gross & Ini (1999); Wasielewski et al (1993).…”

Photoluminescent Grafted Polymers: Synthesis and Properties of a Polyethylene Matrix Covalently Linked with Porphyrin Units

“…Moreover, they present a π‐conjugated delocalized structure and a high efficiency for light absorption, which contributes to the numerous potential applications of porphyrin‐based compounds. Several publications involving porphyrin for diverse applications such as energy transfer antennas for molecular photovoltaics, electron transfer, photodynamic therapy, nanoprobe for tumor imaging, inactivation of bacteria, sensors, nonlinear optical properties, as well as their incorporation into polymer matrices and metal organic frameworks have been published …”