11.3.3.2 CPL from Chiral Gelator and Achiral Luminophores
As stated above, exclusive achiral luminescent gelators could exhibit CPL through
self-assembly in asymmetric environment. In addition, another important approach
for the fabrication of CPL-active materials from achiral luminophores is the
co-assembly. The chirality transfer from chiral components to achiral luminophores
causing induced chirality is of utmost importance. It is not only having potential
to endow almost all luminophores with CPL, but also simplify the strategy to
produce various CPL-active materials instead of the tedious organic synthesis.
Fig. 11.12 Chemical structure of 12 and photographs showing 12 assemblies in N,Ndimethylformamide/H 2 O (DMF/H 2 O) upon stirring during preparation of the gels (top). (a) CPL
spectra (left axis) and fluorescence spectra (right axis) of 12 gels in DMF/H 2 O. CPL spectra of 12
assemblies after 900 rpm clockwise stirring during gelation (b) and containing 900 mol% chiral
1-cyclohexyl ethylamine (c) in DMF/H 2 O. Reproduced with permission [34]. Copyright 2015, The
Royal Society of Chemistry
264
T. Zhao et al.
As stated above, exclusive achiral luminescent gelators could exhibit CPL through
self-assembly in asymmetric environment. In addition, another important approach
for the fabrication of CPL-active materials from achiral luminophores is the
co-assembly. The chirality transfer from chiral components to achiral luminophores
causing induced chirality is of utmost importance. It is not only having potential
to endow almost all luminophores with CPL, but also simplify the strategy to
produce various CPL-active materials instead of the tedious organic synthesis.
Fig. 11.12 Chemical structure of 12 and photographs showing 12 assemblies in N,Ndimethylformamide/H 2 O (DMF/H 2 O) upon stirring during preparation of the gels (top). (a) CPL
spectra (left axis) and fluorescence spectra (right axis) of 12 gels in DMF/H 2 O. CPL spectra of 12
assemblies after 900 rpm clockwise stirring during gelation (b) and containing 900 mol% chiral
1-cyclohexyl ethylamine (c) in DMF/H 2 O. Reproduced with permission [34]. Copyright 2015, The
Royal Society of Chemistry
264
T. Zhao et al.