Spectroscopic study of low temperature interactions in Sm-mesogenic cyanophenyl co-condensates.
The IR- and UV-Vis spectroscopic study of samarium-mesogenic 4-pentyl-4'-cyanobiphenyl low temperatures co-condensates was made in temperature range 90-300 K. Two labile complexes with different metal/ligand ratio of 1:2 and 1:1 were found. They were characterized by methods of IR- and UV-spectroscopy. The solid state transformation of complex Sm(5CB)2 to Sm(5CB) was shown to take place at 170-210 K. The kinetics of the process revealed a wide distribution of complex reactivity and of reaction activation energy.
Shabatina
T I
TI
Department of Chemistry, Moscow State University, Russia. tsh@kinet.chem.msu.ru
Vlasov
A V
AV
Vovk
E V
EV
Stufkens
D J
DJ
Sergeev
G B
GB
D001713:Biphenyl Compounds / Q000737:chemistry*; D012493:Samarium / Q000737:chemistry*; D013055:Spectrophotometry, Infrared / Q000379:methods; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013696:Temperature
D001713:Biphenyl Compounds; D012493:Samarium