I62− Anion Composed of Two Asymmetric Triiodide Moieties: A Competition between Halogen and Hydrogen Bond
I62− Anion Composed of Two Asymmetric Triiodide Moieties: A Competition between Halogen and Hydrogen Bond
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DOI：
10.3390/inorganics1010003
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发表时间：
2013-10
期刊：
影响因子：
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通讯作者：
M. V. Megen;G. Reiss
中科院分区：
文献类型：
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作者：
M. V. Megen;G. Reiss
在碘存在下，1，8-二氨基辛烷与氢碘酸反应，得到一种新的多碘化物盐：1，8-二氨基辛烷双（三碘化物），（H_3N-（CH_2）_8-NH_3）[I_3]_2。标题化合物已通过晶体学和光谱学方法表征。多碘离子是第一个氢键I62−二价阴离子的例子，它由两个非常不对称的三碘离子组成，I-I距离分别为2.7739（4）和3.1778（4）A，通过弱卤键相互作用（I···I：3.5017（2）A）。三碘离子的结构参数，来自X射线晶体学数据，是在良好的协议与拉曼和远红外光谱的结果。
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) A interacting by a weak halogen bond (I···I: 3.5017(2) A). 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.