&lt;title&gt;Inter-molecular and molecular-matrix interaction of photochromic compound furylfulgides&lt;/title&gt;

Kurita, Susumu; Kainuma, K.; Tayu, T.; Takeda, Jun; Nakayama, N.

doi:10.1117/12.200974

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“…1, shows a reversible transformation by light irradiation between two states having different and distinguishable absorption spectra. The open ring form without absorption in the visible region is called as E-form and the red-colored closed ring is C-form (Kurita et al, 1995). These forms are stable at room temperature and the transformation is produced only by light irradiation.…”

Section: Introductionmentioning

confidence: 99%

Photo-induced Conversion of Furylfulgide Single Crystal Under High Pressures

2002

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We have studied pressure effects on single crystal of photochromic furylfulgide for researching the possibility of photo-induced structural change. Pressure dependence of the absorption spectra was investigated up to 8.2 GPa at room temperature. Pressure-induced conversion to C-form molecules was observed at 8.2 GPa in single crystal composed only of E-form molecules, while at 5.7 GPa in single crystal containing small amount of C-form ones. Photochromic reaction was observed under high pressure as well as the ambient pressure. The dependence of absorption intensity due to C-form molecules suggests the possibly of cooperative structural change in furylfulgide single crystal at 5.5 GPa.

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Section: Introductionmentioning

confidence: 99%