An Approximation of Energy Difference, Bayer’s Nonlinearity Parameter in Two Dissimilar Chain of Mesogens

In the present work density measurements are carried out on P-Cyanobenzylidene P- Nonyloxyaniline ,  liquid crystalline compound. The density is observed to drop with grow of temperature in mesogic phases expect in the vicity of stage transition it shows steep grow before it attains equilibrium value of the next part. Using density facts the various thermodynamic parameters like Moelwin Hughes parameter, Isochoric hotness coordinated of internal pressure, Sharma parameter Huggin’s parameter, Gruneisen parameter, etc. are assessed. The Bayer’s nonlinearity parameter is also estimated. All variables exhibit discontinuity at phase transformation. The outcome is discussed with instance to the literature facts accessible on number of samples.

Mesogens, density, phase transition, thermodynamic parameters, Bayer’s nonlinearity parameter

1. D J. Byron, D A Klating, M TO Neill, R CWillson, J W Goodby and G W Gray, Mol.Cryst. Liq. Cryst. Vol. 58(1980 pp 179) [Google Scholar] [Crossref]

2. J Benatter, J Levelet and C Atrzelecki, J.Phys.(Paris) Vol. 39( 1978 pp 1233) [Google Scholar] [Crossref]

3. K . Fakruddin, R Jeevan Kumar, V. G.K.M. Pisipati, D. Madavi latha, B.T.P. Madhav and P.V. Datta Prasad, Mol.Cryst.Liq.Cryst. Vol. 524 pp. 102-118, 2010 [Google Scholar] [Crossref]

4. V.G .K.M. Pisipati, Z. Naturforsch Vol. 58a(2003 pp -661) [Google Scholar] [Crossref]

5. Gogoi B, Alapati P R and Verma A L, 2002, Cryst. Res. Tech. 37, 1331. [Google Scholar] [Crossref]

6. Datta Pasad P.V, Ramakrishna Nanchara Rao M, Lalithakumari J and Pisipati V.G.K.M., 2009, phys.chem.liq.47,123. [Google Scholar] [Crossref]

7. Burmistrov V A, Zavialoy A V, Novikoy I V, Kuvshinova S A and Aleksandriskii V. V., 2005(Russ. J. Phys. Chem., 79, 130). [Google Scholar] [Crossref]

8. Ajeetha N, Rama Krishna Nanchara Rao M., Datta Prasad P V and V.G.K.M. Pisipati (2006), Mol. Cryst. Liq. Cryst. 457,3. [Google Scholar] [Crossref]

9. Gogoi B, Gosh T K and Alapati P R (2005). Cryst. Res. Tech. 40,709. [Google Scholar] [Crossref]

10. Ranga Reddy, R.N.V., Suryanarayana, A. and Rama Murthy V. 1999. Coefficient of volume expansion and Thermoacoustic Parameters of Alkyl-Cyano-Biphenyl Liquid Crystals. Cryst. Res. Technol. 34: 1299-1307. [Google Scholar] [Crossref]

11. Fakruddin, K., Jeevan Kumar, R., Pisipati V.G.K.M., Madhavi Latha, D., Madhav, B.T.P. and Datta Prasad P.V. 2010. Phase Transitions and Thermodynamic parameters of N-(p- n-octyloxybenzylidene)-p-n-alkoxyanilines-A Dilatometeric Study. Mol. Cryst. Liq. Cryst. 524: 102-118. [Google Scholar] [Crossref]

12. Moelwyn-Hughes, E.A. 1951. The Determination of Intermolecular Energy Constants from common Physicochemical properties of Liquids. J. Phys. Chem. 55:1246-1254. [Google Scholar] [Crossref]

13. Haward, R.N. and Parker, B.N. 1968. The internal pressure of simple liquids. J. Phys. Chem. 72:1842-1844. [Google Scholar] [Crossref]

14. Sharma, B.K. 1983. Nonlinearity parameter and its relationship with thermo-acoustic parameters of polymers. J. Phys. D: Appl. Phys. 16:1959. [Google Scholar] [Crossref]

15. Reddy, R.R., Venkatesulu, A., Rama Gopal, K. and Neelakanteswara Reddy, K. 2007. Thermo acoustic parameters in the nematic and isotropic phases of 5CB and tetramethyl methane in 5CB. J. Mol. Liq. 130:112-11 [Google Scholar] [Crossref]

• "Towards GDP to GEP-Centric Model: A Proposed GEP Index Framework and Its Application in Haryana"
• Physicochemical Analysis of Petroleum Products in Selected Depots in Calabar Metropolis Cross River State and The Effects on Motor Engine
• Impact of Employee Welfare Measures on Workforce Well-Being in SBI: Insights from the Public Banking Sector
• Problem of Small-Scale Farmers in Agricutlure Sector in Tirunelveli Taluk
• Globalization, Economic Development, and Ecological Footprint in Tunisia: A QARDL Approach