Infrared Study (3700 - 3000 cm−1) of Hydrogen Bonds Involving Triphenyl Derivatives of Group V Elements

Abstract

Abstract The hydrogen bonded complexes between hydroxylic derivatives and nitrogen bases have been extensively studied by infrared spectrometry but very few experimental results are available for bases involving other elements of group V. Some thermodynamic or spectroscopic data have however been reported for the interaction between alcohol derivatives or phenol and trialkyl- or triphenylphosphine derivatives1–5 but the electron donor ability of the other compounds is not clearly established especially in the case of phenyl derivatives who have n-and π-electron-donor centers. In this case, the properties of the hydrogen bond can be investigated as a useful tool for the evaluation of the donor properties of the heteroatom and the nature of his interaction with the π ring system6. In this work, we have determined the thermodynamic constants and the frequency shifts of the νOH stretching vibration of hydrogen bonded complexes involving phenol derivatives and triphenylarsine. The influence of the acidity of t...