The Crystal Structure of Tetramethylenediammonium Chloride

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概要

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• The crystal structure of tetramethylenediam-monium chloride has been determined by the two-dimensional Fourier method. The crystal belongs to the monoclinic system, with <I>a</I>=10.73Å, <I>b</I>=8.35Å, <I>c</I>=4.60Å and β=92.5°, and the space group is P2<SUB>1</SUB>/<I>a</I>. The tetramethylenediammonium ion has been found to possess a center of symmetry of the unit cell, and the carbon and the nitrogen atoms in the ion, make a coplanar (trans-) zigzag chain. Thus, the tetramethylenediammonium ion has been found to have either a trans- or a gauche-configuration, depending on the structures of the crystals. There are four short approaches between nitrogen and chloride ions with lengths of 3.19∼3.28Å ; three of them have been concluded to be hydrogen bonds. These hydrogen bonds make two-dimensional networks of the ions perpendicular to the c-axis. The structure of this crystal is similar to that of ethylenediam-monium chloride, and some comparisons between them have been given.

• 社団法人 日本化学会の論文

著者

• ASHIDA T.

  Department of Industrial Chemistry, Kinki University

• Ashida Tamaichi

  Department of Chemistry Defense Academy

• Hirokawa Sakutaro

  Department of Chemistry Defense Academy

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