Resolving H(Cl, Br, I) capabilities of transforming solution hydrogen-bond and surface-stress

Chemical Physics Letters 678 (2017) 233–240

Xi Zhang, Yong Zhou, Yinyan Gong, Yongli Huang, Changqing Sun

A combination of differential phonon spectrometrics (DPS) and DFT calculations verified the essentiality of H+-H+ point fragilization and X polarization dictating the surface stress of HX (X = Cl, Br, I) solutions. H+-H+ repulsion breaks the network regularly; X polarization shortens and stiffens the H-O bonds but lengthens and softens the O:H nonbonds in its hydration shell. The X - capability of hydrogen bond and surface stress transformation follows the order of I > Br > Cl. Observations provide fresh insight into the acid solvation network dynamics. DPS resolves solute capabilities of transforming the bonds and surface stress.