Crystal morphology and their lattice contraction control for the topochemical reaction of bis(phenylethenyl)-dicyanopyrazines

Jae Hong Kim, Young Chul Choi, Bong Shik Kim, Dong Hoon Choi, Sung Hoon Kim

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    Topochemical photoreaction of bis(phenylethenyl)-dicyanopyrazines (1) was conducted in solution, in the vapor deposited thin film, and in the single crystals. Compound 1 showed the crystal morphology to give the yellow and orange colored crystals. The difference in crystal structures of yellow and orange crystals was confirmed with X-ray crystal analysis which revealed that the orange one was contracted in the crystallographic c-axis by 0.11 Å than that of the yellow one at the same temperature. The physical property and photoreactivity of two crystals were explained with the topochemical control and lattice contraction.

    Original languageEnglish
    Pages (from-to)422-428
    Number of pages7
    JournalDyes and Pigments
    Volume76
    Issue number2
    DOIs
    Publication statusPublished - 2008

    Bibliographical note

    Funding Information:
    This research was supported by the Yeungnam University research grants in 2005.

    Keywords

    • Crystal morphology
    • Intermolecular interaction
    • Lattice contraction
    • Topochemical photoreaction

    ASJC Scopus subject areas

    • General Chemical Engineering
    • Process Chemistry and Technology

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