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Ligand Exchange Strategy for Tuning of Helicity Inversion Speeds of Dynamic Helical Tri(saloph) Metallocryptands
Author(s) -
Sakata Yoko,
Chiba Shunsuke,
Miyashita Masato,
Nabeshima Tatsuya,
Akine Shigehisa
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201805799
Subject(s) - helicity , amine gas treating , ligand (biochemistry) , inversion (geology) , metal , octahedron , chemistry , crystallography , stereochemistry , physics , materials science , organic chemistry , crystal structure , particle physics , biology , receptor , paleontology , biochemistry , structural basin
We developed a new strategy, ligand exchange strategy , for tuning the response speeds of helicity inversion of a metal‐containing helical structure. This is based on the exchange of the two axial amine ligands of the octahedral Co 3+ centers in the metallocryptands [LCo 3 X 6 ] (X=axial amine ligand). The response speeds of the helicity induction were controlled by using different combinations of achiral and chiral amines as the starting and entering ligands, respectively. The response speeds of the helicity inversion from P to M were also tuned by using different combinations of chiral amines.