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2016
1 Citations
Absorption spectra
Tuning
Acids
1 Citations
fluorescence

Gated Photochromic System of Diarylethene with a Photon-Working Key

Mahvidi, S., Takeuchi, S., Kusumoto, S., Sato, H., Nakagawa, T. & Yokoyama, Y. 2016 Oct 7 In : Organic Letters. 18, 19, p. 5042-5045 4 p.

Research output: Contribution to journalArticle

Photons
Coloring Agents
Protons
Acids

Highly Sensitive Formation of Stable Surface Relief Structures in Bisanthracene Films with Spatially Patterned Photopolymerization

Ubukata, T., Nakayama, M., Sonoda, T., Yokoyama, Y. & Kihara, H. 2016 Aug 31 In : ACS Applied Materials and Interfaces. 8, 34, p. 21974-21978 5 p.

Research output: Contribution to journalArticle

Photopolymerization
Amorphous films
Mass transfer
Polymerization
Fabrication
Photochromism

Synthesis and photochromic properties of 4,5-bisaryl-3(2H)-pyridazinones

Orhan, E., Gundogdu, L., Kose, M. & Yokoyama, Y. 2016 Jan 1 In : Journal of Photochemistry and Photobiology A: Chemistry. 314, p. 164-170 7 p.

Research output: Contribution to journalArticle

Fluorescence
Quantum efficiency
Absorption spectra
Irradiation
Color
2015
2 Citations

Solubility control of organic acid-base salts by photochromism

Yokoyama, Y., Hiromoto, Y., Takagi, K., Ishii, K., Delbaere, S., Watanobe, Y. & Ubukata, T. 2015 In : Dyes and Pigments. 114, C, p. 1-7 7 p.

Research output: Contribution to journalArticle

Precipitates
Dissolution
Photons
Wavelength
Optical shutters
1 Citations

Substituent effects on the photochromic properties of 3,3-diphenyspiro[benzofluorenopyran-cyclopentaphenanthrene]s

Momoda, J., Izumi, S. & Yokoyama, Y. 2015 Aug 1 In : Dyes and Pigments. 119, p. 95-107 13 p.

Research output: Contribution to journalArticle

Dyes
Absorption spectra
Lenses
Wavelength
Economics
2013
1 Citations
Atoms
Nitrogen
Photochromism
Thiophene
Conformations
14 Citations

Enantioselective photochromism of diarylethenes in human serum albumin

Fukagawa, M., Kawamura, I., Ubukata, T. & Yokoyama, Y. 2013 Jul 15 In : Chemistry - A European Journal. 19, 29, p. 9434-9437 4 p.

Research output: Contribution to journalArticle

Serum Albumin
2 Citations

NMR analysis of photochromism of bisthiazolylindenols

Erko, F. G., Berthet, J., Ogawa, H., Yokoyama, Y. & Delbaere, S. 2013 Nov 20 In : Tetrahedron Letters. 54, 47, p. 6366-6369 4 p.

Research output: Contribution to journalArticle

Hydrogen
Cyclization
Magnetic Resonance Spectroscopy
Nitrogen
6 Citations

Preparation and photochromic properties of 2,3-bisarylbenz[f]indenones

Kose, M., Orhan, E., Suzuki, K., Tutar, A., Ünlü, C. S. & Yokoyama, Y. 2013 Apr 1 In : Journal of Photochemistry and Photobiology A: Chemistry. 257, p. 50-53 4 p.

Research output: Contribution to journalArticle

Photochromism
Derivatives
2012
24 Citations

Bisarylindenols: Fixation of conformation leads to exceptional properties of photochromism based on 6π-electrocyclization

Ogawa, H., Takagi, K., Ubukata, T., Okamoto, A., Yonezawa, N., Delbaere, S. & Yokoyama, Y. 2012 Nov 30 In : Chemical Communications. 48, 97, p. 11838-11840 3 p.

Research output: Contribution to journalArticle

Cyclization
Quantum yield
Conformations
Hydrogen bonds
37 Citations

Dual-mode fluorescence switching of photochromic bisthiazolylcoumarin

Suzuki, K., Ubukata, T. & Yokoyama, Y. 2012 Jan 18 In : Chemical Communications. 48, 5, p. 765-767 3 p.

Research output: Contribution to journalArticle

Fluorescence
Methanol
Water
15 Citations

Facile one-step photopatterning of polystyrene films

Ubukata, T., Moriya, Y. & Yokoyama, Y. 2012 Sep 1 In : Polymer Journal. 44, 9, p. 966-972 7 p.

Research output: Contribution to journalArticle

Polystyrenes
Irradiation
Polymers
Nanotechnology
Polymer films

Foreword

Yokoyama, Y., Heron, B. M. & Tian, H. 2012 Feb 1 In : Dyes and Pigments. 92, 2

Research output: Contribution to journalArticle

10 Citations

Photochromic behavior of a bisthienylethene bearing Cu(I)-1,10- phenanthroline complexes

Uehara, S., Hiromoto, Y., Minkovska, S., Suzuki, K., Ubukata, T. & Yokoyama, Y. 2012 Feb 1 In : Dyes and Pigments. 92, 2, p. 861-867 7 p.

Research output: Contribution to journalArticle

Acetonitrile
Bearings (structural)
Orbital calculations
Quantum yield
Molecular orbitals
17 Citations

Photochromic C2-symmetric chiral diarylethene: From the initial state to the final state

Delbaere, S., Berthet, J., Shiozawa, T. & Yokoyama, Y. 2012 Feb 17 In : Journal of Organic Chemistry. 77, 4, p. 1853-1859 7 p.

Research output: Contribution to journalArticle

Hot Temperature
Biomolecular Nuclear Magnetic Resonance
Magnetic Resonance Spectroscopy
Temperature
3 Citations

Phototriggered micromanufacturing using photoresponsive amorphous spirooxazine films

Ubukata, T., Fujii, S., Arimatsu, K. & Yokoyama, Y. 2012 Aug 7 In : Journal of Materials Chemistry. 22, 29, p. 14410-14417 8 p.

Research output: Contribution to journalArticle

Amorphous films
Ultraviolet radiation
Molecules
Photochromism
Durability
1 Citations

Photo-triggered surface relief of polystyrene films-highly photo-sensitive formation by the addition of a benzophenone derivative

Ubukata, T., Yamamoto, S., Moriya, Y., Fujii, S. & Yokoyama, Y. 2012 Oct 30 In : Journal of Photopolymer Science and Technology. 25, 5, p. 675-678 4 p.

Research output: Contribution to journalArticle

Polystyrenes
Derivatives
2011
4 Citations

Alkoxyphenyl-substituted symmetric liquid crystalline diamantane derivatives

Gushiken, T., Ujiie, S., Ubukata, T. & Yokoyama, Y. 2011 Mar 21 In : Bulletin of the Chemical Society of Japan. 84, 3, p. 269-282 14 p.

Research output: Contribution to journalArticle

liquid
crystal

Fulgides and Related Compounds

Yokoyama, Y., Gushiken, T. & Ubukata, T. 2011 Aug 29 Molecular Switches, Second Edition. Wiley-VCH, Vol. 1, p. 81-95 15 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

10 Citations
Hexane
Molecules
9 Citations

Synthesis of photochromic 2,3-bis(5-methyl-2-phenyl-4-thiazolyl)-1,4- naphthoquinone derivatives

Kose, M., Şekerci, Ç. Y., Suzuki, K. & Yokoyama, Y. 2011 Mar 5 In : Journal of Photochemistry and Photobiology A: Chemistry. 219, 1, p. 58-61 4 p.

Research output: Contribution to journalArticle

Derivatives
Photochromism
Isomers
Irradiation
2010
9 Citations

Fast decoloration of spironaphthooxazine bound to a poly(dimethylsiloxane) network

Gushiken, T., Saito, M., Ubukata, T. & Yokoyama, Y. 2010 Feb 15 In : Photochemical and Photobiological Sciences. 9, 2, p. 162-171 10 p.

Research output: Contribution to journalArticle

Dimethylpolysiloxanes
Siloxanes
Polymethyl Methacrylate
Half-Life
Hot Temperature
2 Citations
Atoms
Photochromism
Carbon
Isomerization
Nuclear magnetic resonance
14 Citations

Photoinduced diffusive mass transfer in o-Cl-HABI amorphous thin films

Kikuchi, A., Harada, Y., Yagi, M., Ubukata, T., Yokoyama, Y. & Abe, J. 2010 Mar 25 In : Chemical Communications. 46, 13, p. 2262-2264 3 p.

Research output: Contribution to journalArticle

Amorphous films
Mass transfer
Thin films
Ultraviolet radiation
Demonstrations
24 Citations

Ultimate diastereoselectivity in the ring closure of photochromic diarylethene possessing facial chirality

Shiozawa, T., Hossain, M. K., Ubukata, T. & Yokoyama, Y. 2010 Jul 14 In : Chemical Communications. 46, 26, p. 4785-4787 3 p.

Research output: Contribution to journalArticle

Chirality
Thiophene
Ultraviolet radiation
Irradiation
2009
37 Citations
Cyclization
Atoms
Carbon
12 Citations

Chiral photochromism based on 6π-electrocyclization

Yokoyama, Y. 2009 Jun 24 In : New Journal of Chemistry. 33, 6, p. 1314-1319 6 p.

Research output: Contribution to journalArticle

Photochromism
Enantiomers
Chirality
Liquid crystals
11 Citations

Reversible phototriggered micromanufacturing using amorphous photoresponsive spirooxazine film

Ubukata, T., Fujii, S. & Yokoyama, Y. 2009 Jun 1 In : Journal of Materials Chemistry. 19, 21, p. 3373-3377 5 p.

Research output: Contribution to journalArticle

Amorphous films
Mass transfer
Molecules
64 Citations

Structurally versatile novel photochromic bisarylindenone and its acetal: Achievement of large cyclization quantum yield

Morinaka, K., Ubukata, T. & Yokoyama, Y. 2009 Sep 3 In : Organic Letters. 11, 17, p. 3890-3893 4 p.

Research output: Contribution to journalArticle

Acetals
Hexanes
16 Citations

Ultrafast laser spectroscopic study on photochromic cycloreversion dynamics in fulgide derivatives: One-photon and multiphoton-gated reactions

Ishibashi, Y., Katayama, T., Ota, C., Kobatake, S., Irie, M., Yokoyama, Y. & Miyasaka, H. 2009 Jun 24 In : New Journal of Chemistry. 33, 6, p. 1409-1419 11 p.

Research output: Contribution to journalArticle

Derivatives
Ultrashort pulses
Excited states
Photons
Ultrafast lasers
2008
17 Citations

Dendrimer diarylethenes: The memory effect of conformation in polymer matrices

Fujimoto, Y., Ubukata, T. & Yokoyama, Y. 2008 Nov 24 In : Chemical Communications. 44, p. 5755-5757 3 p.

Research output: Contribution to journalArticle

Dendrimers
Polycarbonates
Conformations
Irradiation

Diamantane: A thread stitching up photochromism and liquid crystals

Gushiken, T., Kawasaki, M., Sagisaka, T., Ubukata, T. & Yokoyama, Y. 2008 Nov 12 Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7050, 70500B

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Derivatives
Photochromism
Crystalline materials
Wavelength
Molecules