ФТТ, 2005, том 47, выпуск 10

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Iodine is a covalent crystal

I.A.Stepanov

Institute of Physical Chemistry, University of Freiburg,
79104 Freiburg, Germany
E-mail: istepanov@email.com

(Received 5 October 2004
Revised 9 December 2004)

Earlier it has been supposed that the lattice energy of iodine is about 70 kJ/mol, therefore, it was considered to be a molecular crystal. In the present paper, it is shown that the lattice energy of iodine is at least 10 times bigger, thus iodine is a covalent crystal. In the previous works the role of fluctuations was not taken into account.

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