897937-40-5Relevant academic research and scientific papers
High fidelity self-sorting assembling of meso-cinchomeronimide appended meso-meso linked Zn(II) diporphyrins
Kamada, Taisuke,Aratani, Naoki,Ikeda, Toshiaki,Shibata, Naoki,Higuchi, Yoshiki,Wakamiya, Atsushi,Yamaguchi, Shigehiro,Kim, Kil Suk,Yoon, Zin Seok,Kim, Dongho,Osuka, Atsuhiro
, p. 7670 - 7678 (2006)
In noncoordinating solvents, meso-cinchomeronimide appended Zn(II) porphyrin 2 forms a cyclic trimer, while diporphyrins 7 exhibit high-fidelity self-sorting assembling to form discrete cyclic trimer, tetramer, and pentamer with large association constants from 7in-in, 7in-out, and 7out-out, respectively, through almost perfect discrimination of enantiomeric and conformational differences of the mesocinchomeronimide substituents. In the latter self-sorting processes, the dihedral angles dictated by the two pyridyl nitrogen atoms control the size of the aggregates; the trimer from 7in-in, the tetarmer from 7in-out, and the pentamer from 7out-out. Cyclic structures of (2)3 and (R-7out-out)5 have been determined by single-crystal X-ray diffraction analysis.
