Single-Crystal-to-Single-Crystal Transition in an Enantiopure [7]Helquat Salt

The First Observation of a Reversible Phase Transition in a Helicene-Like Compound

Naba K. Nath, Lukáš Severa, Roman A. Kunetskiy, Ivana Císařová, Michal Fulem, Květoslav Růžička, Dušan Koval, Václav Kašička, Filip Teplý, Pance Naumov

    Research output: Contribution to journalArticle

    Abstract

    Here it is reported that crystals of an enantiopure [7]helquat salt undergo reversible thermal solid-solid phase transition at 404K. Differential scanning calorimetry (DSC), capillary electrophoresis (CE), and X-ray diffraction analysis were used to unravel the mechanistic details of this process. The single-crystal-to-single-crystal course enabled direct monitoring of the structural changes by in situ variable-temperature X-ray diffraction, thus providing the first direct evidence of a solid phase transition in a helicene-like compound. Going through a phase: The first two examples of a phase transition in a helicene compound are reported. One of the phase transitions is mechanically robust and the crystal can withstand multiple thermal cycles without deterioration (see figure).

    Original languageEnglish (US)
    Pages (from-to)13508-13512
    Number of pages5
    JournalChemistry - A European Journal
    Volume21
    Issue number39
    DOIs
    StatePublished - Sep 1 2015

    Fingerprint

    Salts
    Phase transitions
    Single crystals
    Capillary electrophoresis
    Crystals
    X ray diffraction analysis
    Deterioration
    Differential scanning calorimetry
    X ray diffraction
    Monitoring
    Temperature
    Hot Temperature

    Keywords

    • chirality
    • helicene
    • phase transitions
    • polymorphism
    • X-ray diffraction

    ASJC Scopus subject areas

    • Chemistry(all)

    Cite this

    Single-Crystal-to-Single-Crystal Transition in an Enantiopure [7]Helquat Salt : The First Observation of a Reversible Phase Transition in a Helicene-Like Compound. / Nath, Naba K.; Severa, Lukáš; Kunetskiy, Roman A.; Císařová, Ivana; Fulem, Michal; Růžička, Květoslav; Koval, Dušan; Kašička, Václav; Teplý, Filip; Naumov, Pance.

    In: Chemistry - A European Journal, Vol. 21, No. 39, 01.09.2015, p. 13508-13512.

    Research output: Contribution to journalArticle

    Nath, NK, Severa, L, Kunetskiy, RA, Císařová, I, Fulem, M, Růžička, K, Koval, D, Kašička, V, Teplý, F & Naumov, P 2015, 'Single-Crystal-to-Single-Crystal Transition in an Enantiopure [7]Helquat Salt: The First Observation of a Reversible Phase Transition in a Helicene-Like Compound', Chemistry - A European Journal, vol. 21, no. 39, pp. 13508-13512. https://doi.org/10.1002/chem.201502094
    Nath, Naba K. ; Severa, Lukáš ; Kunetskiy, Roman A. ; Císařová, Ivana ; Fulem, Michal ; Růžička, Květoslav ; Koval, Dušan ; Kašička, Václav ; Teplý, Filip ; Naumov, Pance. / Single-Crystal-to-Single-Crystal Transition in an Enantiopure [7]Helquat Salt : The First Observation of a Reversible Phase Transition in a Helicene-Like Compound. In: Chemistry - A European Journal. 2015 ; Vol. 21, No. 39. pp. 13508-13512.
    @article{8817ca0b9d3746e0994f5cb8a393c092,
    title = "Single-Crystal-to-Single-Crystal Transition in an Enantiopure [7]Helquat Salt: The First Observation of a Reversible Phase Transition in a Helicene-Like Compound",
    abstract = "Here it is reported that crystals of an enantiopure [7]helquat salt undergo reversible thermal solid-solid phase transition at 404K. Differential scanning calorimetry (DSC), capillary electrophoresis (CE), and X-ray diffraction analysis were used to unravel the mechanistic details of this process. The single-crystal-to-single-crystal course enabled direct monitoring of the structural changes by in situ variable-temperature X-ray diffraction, thus providing the first direct evidence of a solid phase transition in a helicene-like compound. Going through a phase: The first two examples of a phase transition in a helicene compound are reported. One of the phase transitions is mechanically robust and the crystal can withstand multiple thermal cycles without deterioration (see figure).",
    keywords = "chirality, helicene, phase transitions, polymorphism, X-ray diffraction",
    author = "Nath, {Naba K.} and Luk{\'a}š Severa and Kunetskiy, {Roman A.} and Ivana C{\'i}sařov{\'a} and Michal Fulem and Květoslav Růžička and Dušan Koval and V{\'a}clav Kašička and Filip Tepl{\'y} and Pance Naumov",
    year = "2015",
    month = "9",
    day = "1",
    doi = "10.1002/chem.201502094",
    language = "English (US)",
    volume = "21",
    pages = "13508--13512",
    journal = "Chemistry - A European Journal",
    issn = "0947-6539",
    publisher = "Wiley-VCH Verlag",
    number = "39",

    }

    TY - JOUR

    T1 - Single-Crystal-to-Single-Crystal Transition in an Enantiopure [7]Helquat Salt

    T2 - The First Observation of a Reversible Phase Transition in a Helicene-Like Compound

    AU - Nath, Naba K.

    AU - Severa, Lukáš

    AU - Kunetskiy, Roman A.

    AU - Císařová, Ivana

    AU - Fulem, Michal

    AU - Růžička, Květoslav

    AU - Koval, Dušan

    AU - Kašička, Václav

    AU - Teplý, Filip

    AU - Naumov, Pance

    PY - 2015/9/1

    Y1 - 2015/9/1

    N2 - Here it is reported that crystals of an enantiopure [7]helquat salt undergo reversible thermal solid-solid phase transition at 404K. Differential scanning calorimetry (DSC), capillary electrophoresis (CE), and X-ray diffraction analysis were used to unravel the mechanistic details of this process. The single-crystal-to-single-crystal course enabled direct monitoring of the structural changes by in situ variable-temperature X-ray diffraction, thus providing the first direct evidence of a solid phase transition in a helicene-like compound. Going through a phase: The first two examples of a phase transition in a helicene compound are reported. One of the phase transitions is mechanically robust and the crystal can withstand multiple thermal cycles without deterioration (see figure).

    AB - Here it is reported that crystals of an enantiopure [7]helquat salt undergo reversible thermal solid-solid phase transition at 404K. Differential scanning calorimetry (DSC), capillary electrophoresis (CE), and X-ray diffraction analysis were used to unravel the mechanistic details of this process. The single-crystal-to-single-crystal course enabled direct monitoring of the structural changes by in situ variable-temperature X-ray diffraction, thus providing the first direct evidence of a solid phase transition in a helicene-like compound. Going through a phase: The first two examples of a phase transition in a helicene compound are reported. One of the phase transitions is mechanically robust and the crystal can withstand multiple thermal cycles without deterioration (see figure).

    KW - chirality

    KW - helicene

    KW - phase transitions

    KW - polymorphism

    KW - X-ray diffraction

    UR - http://www.scopus.com/inward/record.url?scp=84941600663&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84941600663&partnerID=8YFLogxK

    U2 - 10.1002/chem.201502094

    DO - 10.1002/chem.201502094

    M3 - Article

    VL - 21

    SP - 13508

    EP - 13512

    JO - Chemistry - A European Journal

    JF - Chemistry - A European Journal

    SN - 0947-6539

    IS - 39

    ER -