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Inorganics 2013, 1(1), 3-13; doi:10.3390/inorganics1010003
Article

I62− Anion Composed of Two Asymmetric Triiodide Moieties: A Competition between Halogen and Hydrogen Bond

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Received: 31 July 2013; in revised form: 25 September 2013 / Accepted: 21 October 2013 / Published: 31 October 2013
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Abstract: The reaction of 1,8-diaminooctane with hydroiodic acid in the presence of iodine gave a new polyiodide-containing salt: 1,8-diaminiumoctane bis(triiodide), (H3N-(CH2)8-NH3)[I3]2. The title compound has been characterized by crystallographic and spectroscopic methods. The polyiodide ion is the first example of a hydrogen bonded I62− dianion consisting of two very asymmetric triiodide components with I−I distances of 2.7739(4) and 3.1778(4) Å interacting by a weak halogen bond (I···I: 3.5017(2) Å). The structural parameters of the triiodide anions, derived from X-ray crystallographic data, are in good agreement with the Raman and Far-IR spectroscopic results.
Keywords: polyiodide; 1,8-diaminiumoctane; triiodide; crystal structure; IR and Raman spectroscopy polyiodide; 1,8-diaminiumoctane; triiodide; crystal structure; IR and Raman spectroscopy
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

van Megen, M.; Reiss, G.J. I62− Anion Composed of Two Asymmetric Triiodide Moieties: A Competition between Halogen and Hydrogen Bond. Inorganics 2013, 1, 3-13.

AMA Style

van Megen M, Reiss GJ. I62− Anion Composed of Two Asymmetric Triiodide Moieties: A Competition between Halogen and Hydrogen Bond. Inorganics. 2013; 1(1):3-13.

Chicago/Turabian Style

van Megen, Martin; Reiss, Guido J. 2013. "I62− Anion Composed of Two Asymmetric Triiodide Moieties: A Competition between Halogen and Hydrogen Bond." Inorganics 1, no. 1: 3-13.


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