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2011 Fiscal Year Final Research Report

Solid-state Reaction in Organic Inclusion Crystal Investigated by Powder X-ray Diffraction Analysis

Research Project

  • PDF
Project/Area Number 21550008
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Physical chemistry
Research InstitutionTokyo Institute of Technology

Principal Investigator

UEKUSA Hidehiro  東京工業大学, 大学院・理工学研究科, 准教授 (60242260)

Project Period (FY) 2009 – 2011
Keywords結晶構造 / 粉末結晶解析
Research Abstract

The color of thermal paper turns yellow by UV light irradiation due to decomposition of color pigment. In order to resolve this low light fastness problem, a series of cinnamic acid esters that have UV light absorbing function were synthesized as new group of color developing compound. The difference of the light fastness is attributed to the molecular configuration difference in the crystalline state, which leads crystalline state molecular dimerization reaction by UV light and produces low UV absorbing compound.

  • Research Products

    (17 results)

All 2012 2011 2010 2009 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (9 results) Remarks (1 results)

  • [Journal Article] 新規顕色剤を用いた高耐光性感熱記録紙の実現2012

    • Author(s)
      兒玉智史, 藤井博, 佐藤真一, 植草秀裕
    • Journal Title

      日本画像学会誌

      Volume: 51(2) Pages: 139-146

    • Peer Reviewed
  • [Journal Article] Reversible Color Switching of an Organic Crystal Induced by Organic Solvent Vapors2011

    • Author(s)
      K. Fujii, A. Sakon, A. Sekine, and H. Uekusa
    • Journal Title

      Crystal Growth & Design

      Volume: 11 Pages: 4305-4308

    • Peer Reviewed
  • [Journal Article] Metastable polymorphic form of isopropylbenzophenone derivative directly obtained by the solid-state photoreaction investigated by ab initio powder X-ray diffraction analysis2011

    • Author(s)
      K. Fujii, H. Uekusa, M. Fukano, H. Koshima
    • Journal Title

      CrystEngComm

      Volume: 13 Pages: 3197-3201

    • Peer Reviewed
  • [Journal Article] In situobservation and mechanistic elucidation of metastable colored species in crystalline state photochromism of trans-biindenylidenedione2011

    • Author(s)
      K. Fujii, K. Aruga, A. Sekine, H. Uekusa, K. Sohno, K. Tanaka
    • Journal Title

      CrystEngComm

      Volume: 13 Pages: 731-733

    • Peer Reviewed
  • [Journal Article] Selective transformation pathways between crystalline forms of an organic material established from powder X-ray diffraction analysis2010

    • Author(s)
      K. Fujii, Y. Ashida, H. Uekusa, F. Guo, K. Harris
    • Journal Title

      Chem. Commun

      Volume: 46 Pages: 4264-4266

    • Peer Reviewed
  • [Journal Article] Physicochemical Understanding of Polymorphism and Solid-State Dehydration/Rehydration Processes for the Pharmaceutical Material Acrinol, by Ab Initio Powder X-ray Diffraction Analysis and other Techniques2010

    • Author(s)
      K. Fujii, H. Uekusa, N. Itoda, G. Hasegawa, E. Yonemochi, K. Terada, Z. Pan, K. Harris
    • Journal Title

      J. Phys. Chem. C

      Volume: 114 Pages: 580-586

    • Peer Reviewed
  • [Journal Article] Vapor Induced Crystalline Transformation Investigated by ab initio Powder X-ray Diffraction Analysis2009

    • Author(s)
      K. Fujii, Y. Ashida, H. Uekusa, S. Hirano, S. Toyota, F. Toda, Z. Pan, K. Harris
    • Journal Title

      Cryst. Growth Des

      Volume: 9 Pages: 1201-1207

    • Peer Reviewed
  • [Presentation] 感熱紙用新規耐光性顕色剤の光照射に対する挙動2011

    • Author(s)
      兒玉智史, 他
    • Organizer
      平成23年度日本結晶学会年会
    • Place of Presentation
      札幌
    • Year and Date
      2011-11-24
  • [Presentation] Behaviors of Novel Cinnamic Amide Developers Against Photoirradiation2011

    • Author(s)
      S. Kodama et al
    • Organizer
      IUCr2011
    • Place of Presentation
      Madrid
    • Year and Date
      2011-08-24
  • [Presentation] Pseudo-polymorphic transition of pharmaceutical crystals revealed by SDPD method2011

    • Author(s)
      H. Uekusa et al
    • Organizer
      IUCr2011
    • Place of Presentation
      Madrid
    • Year and Date
      2011-08-23
  • [Presentation] 感熱紙用新規高耐光性顕色剤の開発研究2011

    • Author(s)
      兒玉智史, 他
    • Organizer
      第107回日本画像学会研究討論会
    • Place of Presentation
      東京
    • Year and Date
      2011-06-06
  • [Presentation] Development of High Lightfast Developer for Thermal Papers2010

    • Author(s)
      S. Kodama et al
    • Organizer
      PACIFICHEM2010
    • Place of Presentation
      Hawaii
    • Year and Date
      2010-12-16
  • [Presentation] Structural rearrangement of organic crystals in polymorphic transition investigated by ab initiostructure determination from powder diffraction data2010

    • Author(s)
      H. Uekusa
    • Organizer
      PACIFICHEM2010
    • Place of Presentation
      Hawaii
    • Year and Date
      2010-12-16
  • [Presentation] Polymorphic transition of pharmaceutical crystals investigated by Structure Determination from Powder Diffraction data2010

    • Author(s)
      H. Ueksua et al
    • Organizer
      ICMN2010
    • Place of Presentation
      Bandung
    • Year and Date
      2010-11-24
  • [Presentation] Pharmaceutical Polymorphs and their Phase Transitions Investigated by Ab Initio Structure Determination from Powder Diffraction Data2010

    • Author(s)
      H. Uekusa et al
    • Organizer
      AsCA
    • Place of Presentation
      Busan
    • Year and Date
      2010-11-02
  • [Presentation] 粉末X線結晶解析による医薬品化合物の構造と物性2009

    • Author(s)
      植草秀裕
    • Organizer
      平成21年度日本結晶学会年会
    • Place of Presentation
      大阪
    • Year and Date
      2009-12-05
  • [Remarks]

    • URL

      http://www.cms.titech.ac.jp/~uekusa/

URL: 

Published: 2013-07-31  

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