Investigation of the hydrogen bonding of phosphoryl compounds with chloroform by IR spectroscopy
In phosphoryl compound + HCCl3 + CCl4 systems, hydrogen-bonding complexes form with chloroform with 1∶1 and 1 ∶ 2 compositions.
The enthalpy of formation of a hydrogen bond between a phosphoryl compound and HCCl3 has been evaluated, and it correlates linearly with the shift in the overtone in the range measured.
A linear correlation of -ΔH with the sum of the Taft constants of the substituents on the phosphorus has been found.
KeywordsHydrogen Spectroscopy Phosphorus Enthalpy Hydrogen Bond
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