Liquid sulfur: Local-order evidence of a polymerization transition

R. Bellissent; L. Descotes; F. Boué; P. Pfeuty

doi:10.1103/PhysRevB.41.2135

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Liquid sulfur: Local-order evidence of a polymerization transition

R. Bellissent, L. Descotes, and F. Boué

P. Pfeuty

Laboratoire Léon Brillouin Centre d’Etudes Nucleaires de Saclay, F-91191 Gif-sur-Yvette, France

Laboratoire de Physique des Solides, Université de Paris Sud, 91405 Orsay, France

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Phys. Rev. B 41, 2135 – Published 1 February, 1990

DOI: https://doi.org/10.1103/PhysRevB.41.2135

Abstract

The polymerization transition of liquid sulfur has been observed at the microscopic level, through a change in the local order as a function of the temperature. A diffraction measurement using hot source neutrons (λ=0.709 Å) has been performed to determine the pair correlation function. The third peak of this pair correlation function exhibits a drastic drop with increasing temperature that reflects directly the decrease of the concentration of the sulfur atoms in the $S_{8}$ rings when the rings are progressively breaking into long chains.

References (14)

W. J. MacKnight and A. V. Tobolsky, in Elemental Sulfur, edited by B. Meyer (Wiley, New York, 1965), p. 95.
R. F. Bacon and R. Fanelli, J. Am. Chem. Soc. 65, 639 (1943); J. Ruiz-Garcia, E. M. Anderson and S. C. Greer, J. Phys. Chem. 93, 6980 (1989).
F. Feher, G. P. Gorler and H. D. Lutz, Z. Anorg. Allg. Chem. 382, 135 (1971).
H. Patel and L. B. Borst, J. Chem. Phys. 54, 822 (1971).
A. V. Tobolsky and A. Eisenberg, J. Am. Chem. Soc. 81, 780 (1959).
J. C. Wheeler, S. J. Kennedy and P. Pfeuty, Phys. Rev. Lett. 45, 1748 (1980).
J. P. Ambroise and R. Bellissent, Rev. Phys. Appl. 19, 731 (1984).
S. C. Abrahams, Acta Crystallogr. 14, 311 (1961).
O. Chamberlain, Phys. Rev. 77, 305 (1950).
C. W. Tompson and N. S. Gingrich, J. Chem. Phys. 31, 1598 (1959).
K. S. Vahvaselka and J. M. Mangs, Phys. Scr. 38, 737 (1988).
In this approximation we neglect two contributions acting in opposite directions: the very small contribution from the flat distribution of the chains proportional to $Φ_{C}$ and an eventually small down trend of $N_{3}^{sprime}$ not linked to polymerization.
J. C. Koh and W. Klement, Jr., , J. Phys. Chem. 74, 4280 (1970).
F. H. Stillinger, T. A. Weber, and R. A. La Violette, J. Chem. Phys. 85, 6460 (1986).

[c1] W. J. MacKnight and A. V. Tobolsky, in Elemental Sulfur, edited by B. Meyer (Wiley, New York, 1965), p. 95.

[c2] R. F. Bacon and R. Fanelli, J. Am. Chem. Soc. 65, 639 (1943); J. Ruiz-Garcia, E. M. Anderson and S. C. Greer, J. Phys. Chem. 93, 6980 (1989).

[c3] F. Feher, G. P. Gorler and H. D. Lutz, Z. Anorg. Allg. Chem. 382, 135 (1971).

[c4] H. Patel and L. B. Borst, J. Chem. Phys. 54, 822 (1971).

[c5] A. V. Tobolsky and A. Eisenberg, J. Am. Chem. Soc. 81, 780 (1959).

[c6] J. C. Wheeler, S. J. Kennedy and P. Pfeuty, Phys. Rev. Lett. 45, 1748 (1980).

[c7] J. P. Ambroise and R. Bellissent, Rev. Phys. Appl. 19, 731 (1984).

[c8] S. C. Abrahams, Acta Crystallogr. 14, 311 (1961).

[c9] O. Chamberlain, Phys. Rev. 77, 305 (1950).

[c10] C. W. Tompson and N. S. Gingrich, J. Chem. Phys. 31, 1598 (1959).

[c11] K. S. Vahvaselka and J. M. Mangs, Phys. Scr. 38, 737 (1988).

[c12] In this approximation we neglect two contributions acting in opposite directions: the very small contribution from the flat distribution of the chains proportional to $Φ_{C}$ and an eventually small down trend of $N_{3}^{sprime}$ not linked to polymerization.

[c13] J. C. Koh and W. Klement, Jr., , J. Phys. Chem. 74, 4280 (1970).

[c14] F. H. Stillinger, T. A. Weber, and R. A. La Violette, J. Chem. Phys. 85, 6460 (1986).

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