Water soluble organic photochromes: Sulphonated spiro (indolinonaphthoxazines)

被引:0
|
作者
Allegrini, Pietro [1 ]
Malatesta, Vincenzo [1 ]
机构
[1] Enichem Synthesis, Milano, Italy
来源
Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals | 1994年 / 246卷
关键词
Computational methods - Crystallization - Heat treatment - Photochromism - Reaction kinetics - Solutions - Synthesis (chemical);
D O I
暂无
中图分类号
学科分类号
摘要
Two photochromic disulphonated spiro (indolino-naphthoxazines) have been synthesized. Both compounds crystallize in the open merocyanine form. The molar extinction coefficients of the coloured forms have been calculated and the rate constant kb for the thermal bleaching measured. The presence of sulphonic groups lowers the kb, value by two orders of magnitude with respect to that of the unsubstituted compound.
引用
收藏
页码:25 / 28
相关论文
共 50 条
  • [41] Photochemistry within a water-soluble organic capsule
    Ramamurthy, Vaidayanathan
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2016, 251
  • [42] MODIFICATION OF WATER-SOLUBLE SILICATES BY ORGANIC ADDITIVES
    Razgovorov, P. B.
    IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA I KHIMICHESKAYA TEKHNOLOGIYA, 2013, 56 (11): : 3 - +
  • [43] DRYING ORGANIC LIQUIDS WITH WATER-SOLUBLE POLYMERS
    PIEL, E
    JOURNAL OF CHEMICAL EDUCATION, 1979, 56 (10) : 695 - 695
  • [44] WATER-SOLUBLE ORGANIC COMPONENTS OF PSORIATIC SCALES
    FLESCH, P
    JACKSON, EC
    HODGSON, C
    ARCHIVES OF DERMATOLOGY, 1962, 85 (04) : 476 - +
  • [45] Pyrene sorption by water-soluble organic carbon
    Herbert, B.E.
    Bertsch, P.M.
    Novak, J.M.
    Environmental Science and Technology, 1993, 27 (02): : 398 - 403
  • [46] Activation capability of water soluble organic substances as CCN
    Hori, M
    Ohta, S
    Murao, N
    Yamagata, S
    JOURNAL OF AEROSOL SCIENCE, 2003, 34 (04) : 419 - 448
  • [47] The effect of the Hofmeister-Spiro succession of anions and cations of water soluble salts and tissue cultures
    Knake, E
    ARCHIV FUR EXPERIMENTELLE ZELLFORSCHUNG, 1933, 14 (04): : 616 - 630
  • [48] Spiro compounds for organic optoelectronics
    Saragi, Tobat P. I.
    Spehr, Till
    Siebert, Achim
    Fuhrmann-Lieker, Thomas
    Salbeck, Josef
    CHEMICAL REVIEWS, 2007, 107 (04) : 1011 - 1065
  • [49] Soluble metal-organic supercontainers (MOSCs) promote organic reactions "on water"
    Jampani, Parvathi
    Zhou, Han
    Wang, Zhenqiang
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2019, 257
  • [50] Organic crystals for second harmonic generation switching based on anil photochromes
    Sliwa, Michel
    Spangenberg, Arnaud
    Metivier, Remi
    Letard, Sylvie
    Nakatani, Keitaro
    Yu, Pei
    RESEARCH ON CHEMICAL INTERMEDIATES, 2008, 34 (2-3) : 181 - 190