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The crystal structure of hydrazinium dichloride, N2H6Cl2

Donohue, Jerry and Lipscomb, William N. (1947) The crystal structure of hydrazinium dichloride, N2H6Cl2. Journal of Chemical Physics, 15 (3). pp. 115-119. ISSN 0021-9606. doi:10.1063/1.1746438.

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Accurate values of the two parameters in the structure of crystalline hydrazinium dichloride have been determined by the x-ray diffraction method, with the use of one and two dimensional Fourier syntheses. The NN separation in this crystal is 1.42A, and is equal to that in hydrazinium difluoride. This NN distance is 0.05A shorter than in gaseous hydrazine. Each chloride ion forms hydrogen bonds with three nitrogen atoms, the structure consisting of a three dimensional network of NH···Cl bonds. The angle NNH···Cl is 100°. The configuration of the N2H ions is trans. The differences between this structure and that of hydrazinium difluoride probably arise from the greater coordinating ability of the chloride ion as compared with that of the fluoride ion. The shortening of the NN distance may be caused in part by the formal charges on the nitrogen atoms, although it seems certain that this formal charge effect is not of general validity.

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Additional Information:Copyright © 1947 American Institute of Physics. Received December 31, 1946. Contribution from the Gates and Crellin Laboratories of Chemistry, California Institute of Technology, No. 1109. [JD was a] Predoctoral Fellow of the National Research Council.
Issue or Number:3
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3852
Deposited By: Tony Diaz
Deposited On:17 Jul 2006
Last Modified:08 Nov 2021 20:12

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