Comparison of non-covalent interactions and spectral properties in 1-methyl-3-methylthio-5-phenyl-1,2,4-triazinium mono- and tetraiodide crystals

被引:0
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作者
Irina D. Yushina
Boris V. Rudakov
Adam I. Stash
Ekaterina V. Bartashevich
机构
[1] South Ural State University,
[2] L.Ya. Karpov Institute of Physical Chemistry,undefined
[3] A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Science,undefined
来源
Structural Chemistry | 2019年 / 30卷
关键词
1,2,4-Triazine; 1,2,4-Triaziniumoligoiodide; Tetraiodide; Halogen bond; Chalcogen bond;
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摘要
The reaction of 1-methyl-3-methylthio-5-phenyl-1,2,4-triazinium (MTPT) iodide with diiodine in a solution leads to monoiodide crystal structure that in excess of iodine gives the unusual tetraiodide anion with two central iodine atoms in disorder. The bonding within the anion has been characterized as I–…I2…I–; the existence of the bound iodine molecule inside has been proven by the characteristic band in experimental and calculated Raman spectra. Non-covalent interactions of MTPT in considered crystal structures are different. Monoiodide anion as a strong electron donor allows the formation of the S…I chalcogen bonds that are absent in tetraiodide structure. The features of halogen bonds within the I42– anion are also performed.
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页码:1981 / 1991
页数:10
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