Photosalient behavior of photoreactive crystals

Raghavender Medishetty, Subash Chandra Sahoo, Caroline Evania Mulijanto, Pance Naumov, Jagadese J. Vittal

    Research output: Contribution to journalArticle

    Abstract

    Being documented with only about a dozen serendipitous observations, the photosalient effect, where crystals leap when exposed to light, is considered a very rare phenomenon. Here, with a set of structurally related materials that undergo [2 + 2] photocycloaddition we present evidence that this effect is more common than it has been realized in the past, and we seek to establish correlations with the kinematics and the crystal structure toward rational design of photosalient materials. To that end, nine photoreactive complexes AgL2X2 (L = 4-styrylpyridine, 2-fluoro-4-styrylpyridine, and 3-fluoro-4-styrylpyridine, X = BF4-, ClO4- and NO3-) were prepared. The [AgL2]+ cations in these structures pack by both head-to-head and head-to-tail alignment of the styrylpyridine ligands. Crystals of six out of the nine complexes were photosalient and popped, hopped, and/or leaped when exposed to UV light. It is concluded that the occurrence of the photosalient effect is determined not only by the nature of the ligand but also by the crystal packing which directs the magnitude, direction, and rate of volume expansion during the photoreaction.

    Original languageEnglish (US)
    Pages (from-to)1821-1829
    Number of pages9
    JournalChemistry of Materials
    Volume27
    Issue number5
    DOIs
    StatePublished - Mar 10 2015

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    Crystals
    Ligands
    Ultraviolet radiation
    Cations
    Kinematics
    Crystal structure
    Positive ions
    4-stilbazole
    perchlorate
    Direction compound

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)
    • Materials Chemistry

    Cite this

    Medishetty, R., Sahoo, S. C., Mulijanto, C. E., Naumov, P., & Vittal, J. J. (2015). Photosalient behavior of photoreactive crystals. Chemistry of Materials, 27(5), 1821-1829. https://doi.org/10.1021/acs.chemmater.5b00021

    Photosalient behavior of photoreactive crystals. / Medishetty, Raghavender; Sahoo, Subash Chandra; Mulijanto, Caroline Evania; Naumov, Pance; Vittal, Jagadese J.

    In: Chemistry of Materials, Vol. 27, No. 5, 10.03.2015, p. 1821-1829.

    Research output: Contribution to journalArticle

    Medishetty, R, Sahoo, SC, Mulijanto, CE, Naumov, P & Vittal, JJ 2015, 'Photosalient behavior of photoreactive crystals', Chemistry of Materials, vol. 27, no. 5, pp. 1821-1829. https://doi.org/10.1021/acs.chemmater.5b00021
    Medishetty R, Sahoo SC, Mulijanto CE, Naumov P, Vittal JJ. Photosalient behavior of photoreactive crystals. Chemistry of Materials. 2015 Mar 10;27(5):1821-1829. https://doi.org/10.1021/acs.chemmater.5b00021
    Medishetty, Raghavender ; Sahoo, Subash Chandra ; Mulijanto, Caroline Evania ; Naumov, Pance ; Vittal, Jagadese J. / Photosalient behavior of photoreactive crystals. In: Chemistry of Materials. 2015 ; Vol. 27, No. 5. pp. 1821-1829.
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