Spectroscopic study of low temperature interactions in Sm-mesogenic cyanophenyl co-condensates

Authors
Shabatina, TI Vlasov, AV Vovk, EV Stufkens, DJ Sergeev, GB
Citation
Ti. Shabatina et al., Spectroscopic study of low temperature interactions in Sm-mesogenic cyanophenyl co-condensates, SPECT ACT A, 56(13), 2000, pp. 2539-2543
Citations number
12
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
ISSN journal
13861425 → ACNP
Volume
56
Issue
13
Year of publication
2000
Pages
2539 - 2543
Database
ISI
SICI code
1386-1425(20001115)56:13<2539:SSOLTI>2.0.ZU;2-F
Abstract
The IR- and W-Vis spectroscopic study of samarium-mesogenic 4-pentyl-4'-cya nobiphenyl 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-spectroscop y. The solid state transformation of complex Sm(5CB)(2) to Sm(5CB) was show n to take place at 170-210 K. The kinetics of the process revealed a wide d istribution of complex reactivity and of reaction activation energy. (C) 20 00 Elsevier Science B.V. All rights reserved.