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PAPERS, PRESENTED AT THE CONFERENCE
Pressure-assisted photopolymerization in the molecular donor-acceptor fullerene complex $\{\operatorname{Cd}(\operatorname{dedtc})_2\}_2\cdot\mathrm{C}_{60}$
K. P. Meletova, J. Arvanitidisb, D. Christofilosb, G. Kourouklisb a Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, Russia
b Aristotle University of Thessaloniki, GR-54 124 Thessaloniki, Greece
Abstract:
The pressure-assisted photopolymerization in the fullerene complex $\{\operatorname{Cd}(\operatorname{dedtc})_2\}_2\cdot\mathrm{C}_{60}$ (fullerene complex with cadmium diethyldithiocarbamate) observed in the pressure region between $2.24$ and $5.99$ GPa was studied in detail. After a phase transition near $\sim2$ GPa, the Raman spectra exhibit time-dependent changes under prolonged laser illumination regarding the appearance of new peaks in the frequency region of the $A_g(2)$ mode of the $\mathrm{C}_{60}$ monomer. These peaks are related to the fullerene oligomers with a different number of $sp^3$-like coordinated carbon atoms per molecular cage. The polymer content increases with the laser power density and exposure time, while for a fixed laser power, its saturated value is independent of pressure. Outside the pressure range $2.24$ – $5.99$ GPa, photopolymerization is suppressed.
Keywords:
high pressure, fullerene, molecular complexes, Raman scattering, photopolymerization.
Received: 20.11.2015
Citation:
K. P. Meletov, J. Arvanitidis, D. Christofilos, G. Kourouklis, “Pressure-assisted photopolymerization in the molecular donor-acceptor fullerene complex $\{\operatorname{Cd}(\operatorname{dedtc})_2\}_2\cdot\mathrm{C}_{60}$”, Nanosystems: Physics, Chemistry, Mathematics, 7:1 (2016), 133–139
Linking options:
https://www.mathnet.ru/eng/nano181 https://www.mathnet.ru/eng/nano/v7/i1/p133
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