Abstract：
:Ultrasonic studies of the group of halogens of benzene and particularly dependence of acoustic parameters on the structure of organic liquids, demonstrate some interesting regularities in the group of these compounds in gas and liquid states. In this paper results for five cyclic liquids: bromo-, chloro-, fluoro- and jodobenzene are discussed and compared to benzene. Vibrational relaxation was observed in all the compounds. The studies reported here as well as other experimental for great number of compounds support the conclusion that almost all vibrational relaxation processes in liquids can be described using a single relaxation time. It also seems that all vibrational degrees of freedom of the molecule take part in this vibrational process. It seems that differences in transition probabilities between molecules studied could be caused by additional attraction between of molecules having a significant dipole moments.
journal_name
Ultrasonicsjournal_title
Ultrasonicsauthors
Linde BB,Lezhnev NBdoi
10.1016/j.ultras.2006.05.146subject
Has Abstractpub_date
2006-12-22 00:00:00pages
e1467-70eissn
0041-624Xissn
1874-9968pii
S0041-624X(06)00182-Xjournal_volume
44 Suppl 1pub_type
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