Abstract
The dimerization of C60 fullerene under conditions of quasi-hydrostatic compression at temperatures above 293 K is investigated by IR spectroscopy, Raman scattering (RS) spectroscopy, and x-ray diffraction. The measured dimer (C60)2 content in the products of the polymerization of fullerite as a function of the pressure, temperature, and treatment time shows that dimerization occurs even at room temperature in the entire pressure range above ∼1.0 GPa. However, at least at temperatures above 400 K dimerization does not result in the formation of a dimer phase as a stable modification of the system, since the dimer is an intermediate product of the transformation. It is shown that increasing the holding time at 423 K decreases the content of the dimer fraction in the samples and results in the formation of linear (at 1.5 GPa) and two-dimensional (at 6.0 GPa) polymers, which are structure-forming elements of the orthorhombic and rhombohedral polymerized phases.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. M. Rao, P. Zhou, K.-A. Wang et al., Science 259, 955 (1993).
Y. Iwasa, N. Arima, R. M. Fleming et al., Science 264, 1570 (1994).
M. Nunez-Regueiro, L. Marques, J.-L. Hodeau et al., Phys. Rev. Lett. 74, 278 (1995).
C. H. Xu and G. E. Scuseria, Phys. Rev. Lett. 74, 274 (1995).
A. M. Rao, P. C. Eklund, J.-L. Hodeau et al., Phys. Rev. B 55, 4766 (1997).
R. Moret, P. Launois, P.-A. Persson et al., Europhys. Lett. 40, 55 (1997).
V. Agafonov, V. A. Davydov, L. S. Kashevarova et al., Chem. Phys. Lett. 267, 193 (1997).
V. A. Davydov, L. S. Kashevarova, A. V. Rakhmanina et al. JETP Lett. 66, 120 (1997).
P. W. Stephens, G. Bertel, G. Faigel et al., Nature (London) 370, 636 (1994).
Q. Zhu, D. E. Cox, and J. E. Fischer, Phys. Rev. B 54, 11849 (1996).
G. Olzlanyi, G. Bortel, G. Faigel et al., Phys. Rev. B 54, 11849 (1996).
M. Menon, K. R. Subbaswamy, and M. Sawtarie, Phys. Rev. B 49, 13966 (1994).
G. B. Adams, J. B. Page, O. F. Sankey et al., Phys. Rev. B 50, 17471 (1994).
D. Porezag, M. R. Pederson, Th. Frauenheim et al., Phys. Rev. B 52, 14963 (1995).
D. Porezag, G. Jungnickel, Th. Frauenheim et al., Appl. Phys. A: Solids Surf. 64, 321 (1997).
B. Burger, J. Winter, and H. Kuzmany, Z. Phys. B 101, 227 (1996).
P. A. Persson, U. Edlund, P. Jacobsson et al., Chem. Phys. Lett. 258, 540 (1996).
V. A. Davydov, L. S. Kashevarova, A. V. Rakhmanina et al., Carbon 35, 735 (1997).
G.-W. Wang, K. Komatsu, Y. Murata et al., Nature (London) 387, 583 (1997).
K. Komatsu, G.-W. Wang, Y. Murata et al., in Recent Advances in the Chemistry and Physics of Fullerenes and Related Materials, Vol. 4, edited by K. M. Kadish and R. S. Ruoff, Electrochemical Society, Pennington, 1997, p. 291.
S. Lebedkin, A. Gromov, S. Giesa et al., Chem. Phys. Lett. 285, 210 (1998).
V. A. Davydov, L. S. Kashevarova, A. V. Rakhmanina et al. JETP Lett. 63, 818 (1996).
Author information
Authors and Affiliations
Additional information
Pis'ma Zh. Éksp. Teor. Fiz. 68, No. 12, 881–886 (25 December 1998)