362. Yokoyama Y, Shiozawa T, Tani Y, Ubukata T (2009) A unified strategy for exceptionally high
diastereoselectivity in the photochemical ring closure of chiral diarylethenes. Angew Chem Int
Ed 48:4521–4523. https://doi.org/10.1002/anie.200901156
363. Yokoyama Y, Hasegawa T, Ubukata T (2011) Highly diastereoselective photochromic ring
closure of bisbenzothienylethenes possessing dual fluorinated stereocontrollers. Dyes Pigments 89:223–229. https://doi.org/10.1016/j.dyepig.2010.03.008
364. Okada H, Nakajima N, Tanaka T, Iwamoto M (2005) Improvement in photocyclization
efficiency of diaryl ethenes by adjusting the pore size of mesoporous silica. Angew Chem
Int Ed 44:7233–7236. https://doi.org/10.1002/anie.200501992
365. Fukagawa M, Kawamura I, Ubukata T, Yokoyama Y (2013) Enantioselective photochromism
of diarylethenes in human serum albumin. Chem A Eur J 19:9434–9437. https://doi.org/10.
1002/chem.201301459
366. Sasai R, Ogiso H, Shindachi I, Shichi T, Takagi K (2000) Photochromism in oriented thin
films prepared by the hybridization of diarylethenes in clay interlayers. Tetrahedron
56:6979–6984. https://doi.org/10.1016/S0040-4020(00)00519-6
367. Sasai R, Itoh H, Shindachi I, Shichi T, Takagi K (2001) Photochromism of clay - diarylethene
hybrid materials in optically transparent gelatin films. Chem Mater 13:2012–2016. https://doi.
org/10.1021/cm000822v
368. Shindachi I, Hanaki H, Sasai R, Shichi T, Yui T, Takagi K (2004) The effect of layered
sodium–magadiite on the photochromic reversibility of diarylethene immobilized on its
surfaces. Chem Lett 33:1116–1117. https://doi.org/10.1246/cl.2004.1116
369. Shindachi I, Hanaki H, Sasai R, Shichi T, Yui T, Takagi K (2007) Preparation and photochromism of diarylethene covalently bonded onto layered sodium-magadiite surfaces. Res
Chem Intermed 33:143–153. https://doi.org/10.1163/156856707779160870
370. Klajn R (2014) Spiropyran-based dynamic materials. Chem Soc Rev 43:148–184. https://doi.
org/10.1039/C3CS60181A
371. Wojtyk JTC, Wasey A, Kazmaier PM, Hoz S, Buncel E (2000) Thermal reversion mechanism
of N-functionalized merocyanines to spiropyrans: a solvatochromic, solvatokinetic, and semiempirical study. J Phys Chem A 104:9046–9055. https://doi.org/10.1021/jp001533x
372. Shimizu I, Kokado H, Inoue E (1969) Photoreversible photographic systems. V. Reverse
photochromism of (photospiran/acid) system in acetone. Bull Chem Soc Jpn 42:1726–1729.
https://doi.org/10.1246/bcsj.42.1726
373. Raymo FM, Giordani S (2001) Signal processing at the molecular level. J Am Chem Soc
123:4651–4652. https://doi.org/10.1021/ja005699n
374. Yamaguchi T, Ogawa M (2018) Photochromism of a spiropyran in the presence of a synthetic
hectorite. Chem Lett 47:189–191. https://doi.org/10.1246/cl.170982
375. Mitchell RH, Ward TR, Chen Y, Wang Y, Weerawarna SA, Dibble PW, Marsella MJ,
Almutairi A, Wang Z (2003) Synthesis and photochromic properties of molecules containing
[e] -annelated dihydropyrenes. two and three way π-switches based on the valence isomerization. J Am Chem Soc 125:2974–2988
376. Honda K, Komizu H, Kawasaki M (1982) Reverse photocharomism of stenhouse salts. J
Chem Soc Chem Commun:253. https://doi.org/10.1039/c39820000253
377. Lerch MM, Szymański W, Feringa BL (2018) The (photo)chemistry of stenhouse
photoswitches: guiding principles and system design. Chem Soc Rev 47:1910–1937. https://
doi.org/10.1039/c7cs00772h
378. Hatano S, Horino T, Tokita A, Oshima T, Abe J (2013) Unusual negative photochromism via a
short-lived imidazolyl radical of 1,1’-binaphthyl-bridged imidazole dimer. J Am Chem Soc
135:3164–3172. https://doi.org/10.1021/ja311344u
379. Yamaguchi T, Kobayashi Y, Abe J (2015) Fast negative photochromism of 1,1
0 -binaphthylbridged phenoxylÀimidazolyl radical complex. J Am Chem Soc 138:906–913. https://doi.org/
10.1021/jacs.5b10924
Photofunctions of Dye-Clay Hybrids: Recent Developments
315
diastereoselectivity in the photochemical ring closure of chiral diarylethenes. Angew Chem Int
Ed 48:4521–4523. https://doi.org/10.1002/anie.200901156
363. Yokoyama Y, Hasegawa T, Ubukata T (2011) Highly diastereoselective photochromic ring
closure of bisbenzothienylethenes possessing dual fluorinated stereocontrollers. Dyes Pigments 89:223–229. https://doi.org/10.1016/j.dyepig.2010.03.008
364. Okada H, Nakajima N, Tanaka T, Iwamoto M (2005) Improvement in photocyclization
efficiency of diaryl ethenes by adjusting the pore size of mesoporous silica. Angew Chem
Int Ed 44:7233–7236. https://doi.org/10.1002/anie.200501992
365. Fukagawa M, Kawamura I, Ubukata T, Yokoyama Y (2013) Enantioselective photochromism
of diarylethenes in human serum albumin. Chem A Eur J 19:9434–9437. https://doi.org/10.
1002/chem.201301459
366. Sasai R, Ogiso H, Shindachi I, Shichi T, Takagi K (2000) Photochromism in oriented thin
films prepared by the hybridization of diarylethenes in clay interlayers. Tetrahedron
56:6979–6984. https://doi.org/10.1016/S0040-4020(00)00519-6
367. Sasai R, Itoh H, Shindachi I, Shichi T, Takagi K (2001) Photochromism of clay - diarylethene
hybrid materials in optically transparent gelatin films. Chem Mater 13:2012–2016. https://doi.
org/10.1021/cm000822v
368. Shindachi I, Hanaki H, Sasai R, Shichi T, Yui T, Takagi K (2004) The effect of layered
sodium–magadiite on the photochromic reversibility of diarylethene immobilized on its
surfaces. Chem Lett 33:1116–1117. https://doi.org/10.1246/cl.2004.1116
369. Shindachi I, Hanaki H, Sasai R, Shichi T, Yui T, Takagi K (2007) Preparation and photochromism of diarylethene covalently bonded onto layered sodium-magadiite surfaces. Res
Chem Intermed 33:143–153. https://doi.org/10.1163/156856707779160870
370. Klajn R (2014) Spiropyran-based dynamic materials. Chem Soc Rev 43:148–184. https://doi.
org/10.1039/C3CS60181A
371. Wojtyk JTC, Wasey A, Kazmaier PM, Hoz S, Buncel E (2000) Thermal reversion mechanism
of N-functionalized merocyanines to spiropyrans: a solvatochromic, solvatokinetic, and semiempirical study. J Phys Chem A 104:9046–9055. https://doi.org/10.1021/jp001533x
372. Shimizu I, Kokado H, Inoue E (1969) Photoreversible photographic systems. V. Reverse
photochromism of (photospiran/acid) system in acetone. Bull Chem Soc Jpn 42:1726–1729.
https://doi.org/10.1246/bcsj.42.1726
373. Raymo FM, Giordani S (2001) Signal processing at the molecular level. J Am Chem Soc
123:4651–4652. https://doi.org/10.1021/ja005699n
374. Yamaguchi T, Ogawa M (2018) Photochromism of a spiropyran in the presence of a synthetic
hectorite. Chem Lett 47:189–191. https://doi.org/10.1246/cl.170982
375. Mitchell RH, Ward TR, Chen Y, Wang Y, Weerawarna SA, Dibble PW, Marsella MJ,
Almutairi A, Wang Z (2003) Synthesis and photochromic properties of molecules containing
[e] -annelated dihydropyrenes. two and three way π-switches based on the valence isomerization. J Am Chem Soc 125:2974–2988
376. Honda K, Komizu H, Kawasaki M (1982) Reverse photocharomism of stenhouse salts. J
Chem Soc Chem Commun:253. https://doi.org/10.1039/c39820000253
377. Lerch MM, Szymański W, Feringa BL (2018) The (photo)chemistry of stenhouse
photoswitches: guiding principles and system design. Chem Soc Rev 47:1910–1937. https://
doi.org/10.1039/c7cs00772h
378. Hatano S, Horino T, Tokita A, Oshima T, Abe J (2013) Unusual negative photochromism via a
short-lived imidazolyl radical of 1,1’-binaphthyl-bridged imidazole dimer. J Am Chem Soc
135:3164–3172. https://doi.org/10.1021/ja311344u
379. Yamaguchi T, Kobayashi Y, Abe J (2015) Fast negative photochromism of 1,1
0 -binaphthylbridged phenoxylÀimidazolyl radical complex. J Am Chem Soc 138:906–913. https://doi.org/
10.1021/jacs.5b10924
Photofunctions of Dye-Clay Hybrids: Recent Developments
315