Supramolecular photochirogenesis in sensitizing chiral nanopore: enantiodifferentiating photoisomerization of (Z)-cyclooctene included and sensitized by POST-1.
By using homochiral mesoporous POST-1 (Scheme 1) as an inherently chiral sensitizing host, supramolecular enantiodifferentiating photoisomerizations of (Z)-cyclooctene (1Z) were performed for the first time to examine the sensitizing ability of the chiral nanopores, walls of which are decorated with pyridine chromophore. The homochiral nanopores of POST-1 crystals were demonstrated to function as an effective chiral-sensitizing cavity to give the optically active (E)-isomer 1E in up to 5% enantiomeric excess (ee), thus expanding the scope of porous material-mediated chirogenesis to both ground and excited electronic states.
Gao
Yunyan
Y
Entropy Control Project, ICORP, JST, Toyonaka, Japan.
Wada
Takehiko
T
Yang
Kwangsuk
K
Kim
Kimoon
K
Inoue
Yoshihisa
Y