Europhys. Lett.
Volume 63, Number 3, August 2003
Page(s) 368 - 373
Section Condensed matter: structure, mechanical and thermal properties
Published online 01 November 2003
DOI: 10.1209/epl/i2003-00541-0
Europhys. Lett., 63 (3) , pp. 368-373 (2003)

Neutron diffraction and thermal studies of amorphous $\chem{CS_2}$ realised by low-temperature vapour deposition

O. Yamamuro1, T. Matsuo1, N. Onoda-Yamamuro2, K. Takeda3, H. Munemura4, S. Tanaka4 and M. Misawa4

1  Department of Chemistry, Graduate School of Science, Osaka University 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
2  College of Science and Technology, Tokyo Denki University Hatoyama-cho, Hiki-gun, Saitama 350-0394, Japan
3  Department of Chemistry, Naruto University of Education Naruto, Tokushima 772-8502, Japan
4  Department of Chemistry, Faculty of Science, Niigata University Ikarashi, Niigata 950-2181, Japan

(Received 20 December 2002; accepted in final form 28 May 2003)

We have succeeded in preparing amorphous carbon disulphide ( $\chem{CS_2}$) by depositing its vapour on a cold substrate at 10 $\un{K}$. Complete formation of the amorphous state has been confirmed by neutron diffraction and differential thermal analysis (DTA). The amorphous sample crystallised at ca. 70 $\un{K}$, which is lower than the hypothetical glass transition temperature (92 $\un{K}$) estimated from the DTA data of the ( $\chem{CS_2}$) x( $\chem{S_2Cl_2}$) 1-x binary mixture. $\chem{CS_2}$, a symmetric linear tri-atomic molecule, is the simplest of the amorphised molecular substances whose structural and thermal information has been reported so far. Comparison of the static structure factors S(Q) has shown that the orientational correlation of $\chem{CS_2}$ molecules may be much stronger in the amorphous state than in the liquid state at higher temperature.

61.12.Ld - Neutron diffraction.
61.43.Fs - Glasses.
64.70.Pf - Glass transitions.

© EDP Sciences 2003