Iodine-Iodine Bonding makes Tetra(diiodine)chloride, [Cl(I2)4]−, Planar

All square: The polyinterhalide [Cl(I2)4]− is square‐planar in the crystal structure of [(H5O2)(I2b15c5)2][Cl(I2)4] (I2b15c5=diiodobenzo‐15‐crown‐5), although it would be tetrahedral in the gas phase. Along with other effects, such as electrostatic attractions between the cationic and planar anionic...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2013-11, Vol.52 (48), p.12732-12735
Main Authors: Walbaum, Christine, Richter, Mark, Sachs, Ulf, Pantenburg, Ingo, Riedel, Sebastian, Mudring, Anja-Verena, Meyer, Gerd
Format: Article
Language:English
Subjects:
diiodobenzo-15-crown-5
iodine-iodine bonding
polyinterhalide
sigma hole
tetra(diiodine)chloride
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Summary:All square: The polyinterhalide [Cl(I2)4]− is square‐planar in the crystal structure of [(H5O2)(I2b15c5)2][Cl(I2)4] (I2b15c5=diiodobenzo‐15‐crown‐5), although it would be tetrahedral in the gas phase. Along with other effects, such as electrostatic attractions between the cationic and planar anionic layers, iodine–iodine bonding with σ‐hole interactions plays a considerable role is stabilizing the square‐planar configuration.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201305412