Author/Authors :
Kozaki، نويسنده , , Masatoshi and Tujimura، نويسنده , , Hitoshi and Suzuki، نويسنده , , Shuichi and Okada، نويسنده , , Keiji، نويسنده ,
Abstract :
A methodology for the stepwise construction of shape-persistent assemblies using snowflake-shaped dendrimers as the key modular building blocks was described. The Sonogashira coupling reaction of A3B-type Zn–porphyrin with A4-type free-base porphyrin afforded a cross-shaped covalent assembly. Intramolecular singlet energy transfer from peripheral Zn–porphyrin core to a free-base porphyrin core was observed.
