%0 Journal Article
%T I62£¿ Anion Composed of Two Asymmetric Triiodide Moieties: A Competition between Halogen and Hydrogen Bond
%A Martin van Megen
%A Guido J. Reiss
%J Inorganics
%D 2013
%R 10.3390/inorganics1010003
%X 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), (H 3N-(CH 2) 8-NH 3)[I 3] 2. The title compound has been characterized by crystallographic and spectroscopic methods. The polyiodide ion is the first example of a hydrogen bonded I 6 2£¿ dianion consisting of two very asymmetric triiodide components with I£¿I distances of 2.7739(4) and 3.1778(4) £¿ interacting by a weak halogen bond (I¡¤¡¤¡¤I: 3.5017(2) £¿). 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.
%K polyiodide
%K 1
%K 8-diaminiumoctane
%K triiodide
%K crystal structure
%K IR and Raman spectroscopy
%U http://www.mdpi.com/2304-6740/1/1/3