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Detection of halogen bond formation by correlation of proton solvent shifts. 1. Haloforms in n-electron donor solvents

✍ Scribed by José Fernández Bertrán; Mario Rodríguez

Book ID
102528265
Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
300 KB
Volume
12
Category
Article
ISSN
0749-1581

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✦ Synopsis

The solvent shifts of haloformic protons, (Cl,CH, Br3CH, 13CH), have been measured in 24 n-electron donor solvents consisting of halogenated hydrocarbons, esters, ketones, ethers and amines. Deviations of ABr and A, from linear dependence with Ac, are indicative of the presence of halogen bond formation competitive with hydrogen bonding interactions. Bromoform interacts predominantly by hydrogen bonding, halogen bonding being detected to a small extent in chlorinated hydrocarbons and amines. Iodoform shows halogen bonding interactions which increase in relative importance to hydrogen bonding with solvent basicity. Halogen bonding is predominant for solutions of iodoform in amines.

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Detection of halogen bond formation by c
Detection of halogen bond formation by correlation of proton solvent shifts. II—methylene halides in n-electron donor solvents
✍ José Fernández Bertrán; Mario Rodríguez 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 225 KB

The solvent shifts of the methylenic protons of CH,CI,, CH2Br, and CHJ, have been measured in amines, ethers and non-polar solvents. Correlation of the solvent shifts of the bromine and iodine compounds ABr and A,, respectively, with those of the chlorine compounds, &,, serves as a monitor of haloge