Relationship between crystal structures and photochromic properties of: N -salicylideneaminopyridine derivatives

Haruki Sugiyama, Hidehiro Uekusa

研究成果: Article査読

21 被引用数 (Scopus)

抄録

N-Salicylideneaminopyridine (SAP) is a derivative of the common organic photochromic compound, N-salicylideneaniline (SA), whose crystal changes colors from orange to red upon UV irradiation. Interestingly, the photochromic property of the crystal depends on the crystal structure. In this study, SAP derivatives and their co-crystals were synthesized, and their crystal structures were analyzed to determine the relationship between their structures and photochromic properties. The photochromic property was found to be closely related to the molecular conformation and the packing efficiency in the crystal. In general, crystals with large dihedral angles were photochromic, while those with small dihedral angles were non-photochromic. However, even for crystals with large dihedral angles, small free available spaces in the crystal structure led to non-photochromic properties. This study demonstrates the importance of a combination of structural factors to elucidate the photochromic property of SAP derivatives.

本文言語English
ページ(範囲)2144-2151
ページ数8
ジャーナルCrystEngComm
20
15
DOI
出版ステータスPublished - 2018
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

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