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Phase Transition Studies in Some 4‐n‐Alkyl‐N‐(4‐n‐Alkyloxy‐Benzylidene)‐Anilines
Author(s) -
Rao P. Bhaskara,
Potukuchi D. M.,
Murthy J. S. R.,
Rao N. V. S.,
Pisipati V. G. K. M.
Publication year - 1992
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170270619
Subject(s) - differential scanning calorimetry , alkyl , homologous series , phase transition , chemistry , refractive index , phase (matter) , crystallography , materials science , organic chemistry , thermodynamics , physics , optoelectronics
The results of phase transition investigations in two homologous series of 4‐n‐alkyl‐N‐(4‐n‐alkyloxy‐benzylidene)‐anilines, viz., 60. m and 70. m compounds using thermal microscopy, differential scanning calorimetry, density and refractive index measurements are reported. The nature of the order of various phase transitions and the pre‐transitional effects in the fluctuation dominated non‐linear regions in the vicinity of IN, IA and NA transitions are discussed in the light of the available data on other n O. m compounds.