Pack more into the box: How to fit two metal ions in one porphyrin. Porphyrins’ default coordination mode allows the binding of a single metal cation in the central NNNN cavity. In order to allow the accommodation of two metal ions inside a standard porphyrin perimeter, they are introduced in place of two inner NH groups, yielding a 21,23-dimetallaporphyrin. The 18-π-electron aromatic circuit is maintained
Synthesis and Properties of Fused-Ring-Expanded Porphyrins that were Core-Modified with Group 16 Heteroatoms
作者:Hai-Jun Xu、John Mack、Di Wu、Zhao-Li Xue、Ana B. Descalzo、Knut Rurack、Nagao Kobayashi、Zhen Shen
DOI:10.1002/chem.201200956
日期:2012.12.21
applications. The scope for further fine‐tuning of these optical properties based on additional structural modifications, such as the incorporation of fused benzene rings to form ABAB structures by using a thiophene precursor with a fused bicyclo[2.2.2]octadiene ring and the introduction of various substituents onto the meso‐phenyl rings, is also examined.