45. Bing TY, Kawai T, Yuasa J (2018) Ligand-to-ligand interactions that direct formation of
D 2 -symmetrical alternating circular helicate. J Am Chem Soc 140:3683–3689
46. Hasegawa Y, Nakagawa T, Kawai T (2010) Recent progress of luminescent metal complexes
with photochromic units. Coord Chem Rev 254:2643–2651
47. Cheng HB, Hu GF, Zhang ZH, Gao L, Gao X, Wu HC (2016) Photocontrolled reversible
luminescent lanthanide molecular switch based on a diarylethene-europium dyad. Inorg Chem
55:7962–7968
48. He X, Norel L, Hervault YM, Métivier R, D’Aleo A, Maury O, Rigaut S (2016) Modulation of
Eu(III) and Yb(III) luminescence using a DTE photochromic ligand. Inorg Chem
55:12635–12643
49. Hashimoto Y, Nakashima T, Yamada M, Yuasa J, Rapenne G, Kawai T (2018) Hierarchical
emergence and dynamic control of chirality in a photoresponsive dinuclear complex. J Phys
Chem Lett 9:2151–2157
50. Metcalf DH, Snyder SW, Demas JN, Richardson FS (1990) Chiral dynamics in the excited state
of a stereochemically labile metal complex. J Phys Chem 94:7143–7153
51. Liu M, Zhang L, Wang T (2015) Supramolecular chirality in self-assembled systems. Chem
Rev 115:7304–7397
52. Kumar J, Nakashima T, Kawai T (2015) Circularly polarized luminescence in chiral molecules
and supramolecular assemblies. J Phys Chem Lett 6:3445–3452
53. Gopal A, Hifsudheen M, Furumi S, Takeuchi M, Ajayaghosh A (2012) Thermally assisted
photonic inversion of supramolecular handedness. Angew Chem Int Ed 51:10505–10509
54. Miao W, Wang S, Liu M (2017) Reversible quadruple switching with optical, chiroptical,
helicity, and macropattern in self-assembled spiropyran gels. Adv Funct Mater 27:1701368
55. Jiang H, Jiang Y, Han J, Zhang L, Liu M (2018) Helical nanostructures: chirality transfer and a
photodriven transformation from superhelix to nanokebab. Angew Chem Int Ed 58:785–790
56. Hashimoto Y, Nakashima T, Kuno J, Yamada M, Kawai T (2018) Dynamic modulation of
circularly polarized luminescence in photoresponsive assemblies. ChemNanoMat 4:815–820
57. Bu J, Watanabe K, Hayasaka H, Akagi K (2014) Photochemically colour-tuneable white
fluorescence illuminants consisting of conjugated polymer nanospheres. Nat Commun
5:3799-1–3799-8
58. Su J, Fukaminato T, Placial JP, Onodera T, Suzuki R, Oikawa H, Brosseau A, Brisset F,
Pansu R, Nakatani K, Métivier R (2015) Giant amplification of photoswitching by a few
photons in fluorescent photochromic organic nanoparticles. Angew Chem Int Ed 55:3662–3666
59. Chen SH, Katsis D, Schmid AW, Mastrangelo JC, Tsutsui T, Blanton TN (1999) Circularly
polarized light generated by photoexcitation of luminophores in glassy liquid-crystal films.
Nature 397:506–508
60. San Jose BA, Yan J, Akagi K (2014) Dynamic switching of the circularly polarized luminescence of disubstituted polyacetylene by selective transmission through a thermotropic chiral
nematic liquid crystal. Angew Chem Int Ed 53:10641–10644
61. Vicario J, Katsonis N, Ramon BS, Bastiaansen CWM, Broer DJ, Feringa BL (1999) Nanomotor
rotates microscale objects. Nature 440:163
62. Hayasaka H, Miyashita T, Nakayama M, Kuwada K, Akagi K (2012) Dynamic photoswitching
of helical inversion in liquid crystals containing photoresponsive axially chiral dopants. J Am
Chem Soc 134:3758–3765
63. Li Y, Urbas A, Li Q (2012) Reversible light-directed red, green, and blue reflection with thermal
stability enabled by a self-organized helical superstructure. J Am Chem Soc 134:9573–9576
64. Zheng ZG, Li Y, Bisoyi HK, Wang L, Bunning TJ, Li Q (2016) Three-dimensional control of
the helical axis of a chiral nematic liquid crystal by light. Nature 531:352–356
65. Brandt JR, Salerno F, Fuchter MJ (2017) The added value of small-molecule chirality in
technological applications. Nat Rev Chem 1:0045-1–0045-12
8 Photo-Switching of Circularly Polarized Luminescence
195
D 2 -symmetrical alternating circular helicate. J Am Chem Soc 140:3683–3689
46. Hasegawa Y, Nakagawa T, Kawai T (2010) Recent progress of luminescent metal complexes
with photochromic units. Coord Chem Rev 254:2643–2651
47. Cheng HB, Hu GF, Zhang ZH, Gao L, Gao X, Wu HC (2016) Photocontrolled reversible
luminescent lanthanide molecular switch based on a diarylethene-europium dyad. Inorg Chem
55:7962–7968
48. He X, Norel L, Hervault YM, Métivier R, D’Aleo A, Maury O, Rigaut S (2016) Modulation of
Eu(III) and Yb(III) luminescence using a DTE photochromic ligand. Inorg Chem
55:12635–12643
49. Hashimoto Y, Nakashima T, Yamada M, Yuasa J, Rapenne G, Kawai T (2018) Hierarchical
emergence and dynamic control of chirality in a photoresponsive dinuclear complex. J Phys
Chem Lett 9:2151–2157
50. Metcalf DH, Snyder SW, Demas JN, Richardson FS (1990) Chiral dynamics in the excited state
of a stereochemically labile metal complex. J Phys Chem 94:7143–7153
51. Liu M, Zhang L, Wang T (2015) Supramolecular chirality in self-assembled systems. Chem
Rev 115:7304–7397
52. Kumar J, Nakashima T, Kawai T (2015) Circularly polarized luminescence in chiral molecules
and supramolecular assemblies. J Phys Chem Lett 6:3445–3452
53. Gopal A, Hifsudheen M, Furumi S, Takeuchi M, Ajayaghosh A (2012) Thermally assisted
photonic inversion of supramolecular handedness. Angew Chem Int Ed 51:10505–10509
54. Miao W, Wang S, Liu M (2017) Reversible quadruple switching with optical, chiroptical,
helicity, and macropattern in self-assembled spiropyran gels. Adv Funct Mater 27:1701368
55. Jiang H, Jiang Y, Han J, Zhang L, Liu M (2018) Helical nanostructures: chirality transfer and a
photodriven transformation from superhelix to nanokebab. Angew Chem Int Ed 58:785–790
56. Hashimoto Y, Nakashima T, Kuno J, Yamada M, Kawai T (2018) Dynamic modulation of
circularly polarized luminescence in photoresponsive assemblies. ChemNanoMat 4:815–820
57. Bu J, Watanabe K, Hayasaka H, Akagi K (2014) Photochemically colour-tuneable white
fluorescence illuminants consisting of conjugated polymer nanospheres. Nat Commun
5:3799-1–3799-8
58. Su J, Fukaminato T, Placial JP, Onodera T, Suzuki R, Oikawa H, Brosseau A, Brisset F,
Pansu R, Nakatani K, Métivier R (2015) Giant amplification of photoswitching by a few
photons in fluorescent photochromic organic nanoparticles. Angew Chem Int Ed 55:3662–3666
59. Chen SH, Katsis D, Schmid AW, Mastrangelo JC, Tsutsui T, Blanton TN (1999) Circularly
polarized light generated by photoexcitation of luminophores in glassy liquid-crystal films.
Nature 397:506–508
60. San Jose BA, Yan J, Akagi K (2014) Dynamic switching of the circularly polarized luminescence of disubstituted polyacetylene by selective transmission through a thermotropic chiral
nematic liquid crystal. Angew Chem Int Ed 53:10641–10644
61. Vicario J, Katsonis N, Ramon BS, Bastiaansen CWM, Broer DJ, Feringa BL (1999) Nanomotor
rotates microscale objects. Nature 440:163
62. Hayasaka H, Miyashita T, Nakayama M, Kuwada K, Akagi K (2012) Dynamic photoswitching
of helical inversion in liquid crystals containing photoresponsive axially chiral dopants. J Am
Chem Soc 134:3758–3765
63. Li Y, Urbas A, Li Q (2012) Reversible light-directed red, green, and blue reflection with thermal
stability enabled by a self-organized helical superstructure. J Am Chem Soc 134:9573–9576
64. Zheng ZG, Li Y, Bisoyi HK, Wang L, Bunning TJ, Li Q (2016) Three-dimensional control of
the helical axis of a chiral nematic liquid crystal by light. Nature 531:352–356
65. Brandt JR, Salerno F, Fuchter MJ (2017) The added value of small-molecule chirality in
technological applications. Nat Rev Chem 1:0045-1–0045-12
8 Photo-Switching of Circularly Polarized Luminescence
195