Molecules | |
Exploring the C-X…π Halogen Bonding Motif: An Infrared and Raman Study of the Complexes of CF3X (X = Cl, Br and I) with the Aromatic Model Compounds Benzene and Toluene | |
Nick Nagels1  Dieter Hauchecorne1  | |
[1] id="af1-molecules-18-06829">Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgi | |
关键词: halogen bonding; C-X···π interactions; infrared spectroscopy; Raman spectroscopy; cryosolutions; | |
DOI : 10.3390/molecules18066829 | |
来源: mdpi | |
【 摘 要 】
The formation of halogen bonded complexes formed between the trifluorohalomethanes CF3Cl, CF3Br and CF3I and the Lewis bases benzene and toluene at temperatures below 150K was investigated using FTIR and Raman spectroscopy. Experiments using liquid krypton as solvent show that for both CF3Br and CF3I substantial fractions of the monomers can be involved in 1:1 complexes. In addition, weak absorptions illustrating the formation of 2:1 complexes between CF3I and benzene are observed. Using spectra recorded at temperatures between 120 and 140 K, observed information on the relative stability was obtained for all complexes by determining the complexation enthalpies in solution. The resulting values for CF3Br
【 授权许可】
CC BY
© 2013 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190035867ZK.pdf | 449KB | download |