Thermochemiluminescent peroxide crystals

Stefan Schramm, Durga Prasad Karothu, Nathan M. Lui, Patrick Commins, Ejaz Ahmed, Luca Catalano, Liang Li, James Weston, Taro Moriwaki, Kyril M. Solntsev and Panče Naumov ()
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Stefan Schramm: New York University Abu Dhabi
Durga Prasad Karothu: New York University Abu Dhabi
Nathan M. Lui: New York University Abu Dhabi
Patrick Commins: New York University Abu Dhabi
Ejaz Ahmed: New York University Abu Dhabi
Luca Catalano: New York University Abu Dhabi
Liang Li: New York University Abu Dhabi
James Weston: New York University Abu Dhabi
Taro Moriwaki: Japan Synchrotron Radiation Research Institute
Kyril M. Solntsev: New York University Abu Dhabi
Panče Naumov: New York University Abu Dhabi

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: Abstract Chemiluminescence, a process of transduction of energy stored within chemical bonds of ground-state reactants into light via high-energy excited intermediates, is known in solution, but has remained undetected in macroscopic crystalline solids. By detecting thermally induced chemiluminescence from centimeter-size crystals of an organic peroxide here we demonstrate direct transduction of heat into light by thermochemiluminescence of bulk crystals. Heating of crystals of lophine hydroperoxide to ~115 °C results in detectable emission of blue-green light with maximum at 530 nm with low chemiluminescent quantum yield [(2.1 ± 0.1) × 10‒7 E mol‒1]. Spectral comparison of the thermochemiluminescence in the solid state and in solution revealed that the solid-state thermochemiluminescence of lophine peroxide is due to emission from deprotonated lophine. With selected 1,2-dioxetane, endoperoxide and aroyl peroxide we also establish that the thermochemiluminescence is common for crystalline peroxides, with the color of the emitted light varying from blue to green to red.

Date: 2019
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DOI: 10.1038/s41467-019-08816-8

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