Abstract
Infrared measurements have
been made of the influence of pressures between 0 and 40 kbar
on the asymmetrical stretching frequencies v3 and bending
frequencies v2 of the hydrogen-bonded ions FHF- and ClHCl- in the solid salts NaHF2, KHF2,
NH4HF2, (CH3)4NHCl2 and
(C2H5)4NHCl2 at 25�C. The behaviour
of the symmetrical stretching frequency v1 for FHF- in
KHF2 has been deduced indirectly from the shifts of combination
bands. Contrary to the behaviour of compounds with weaker, 'normal', hydrogen
bonds, the v3 bands shift to higher frequencies and the v2
bands shift to lower frequencies with increasing pressure. The vl band of KHF2 shifts to higher
frequencies. These trends are all in agreement with predictions made in Part I
for a simple model of hydrogen bonds. A new high-pressure phase transition has
been found to occur in NaHF2 at about 40 kbar.
Cited by
22 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献