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Molecular Physics
An International Journal at the Interface Between Chemistry and Physics
Volume 44, 1981 - Issue 6
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Original Articles

Order parameter and the orientational distribution function for 4-cyanophenyl-4′-n-heptyl benzoate in the nematic phase

B. Bhattacharjee Physics Department, North Bengal University, Darjeeling, India
,
S. Paul Physics Department, North Bengal University, Darjeeling, India
&
R. Paul Physics Department, North Bengal University, Darjeeling, India
Pages 1391-1398 | Received 18 Sep 1980, Accepted 05 Sep 1981, Published online: 23 Aug 2006

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Mark T. Sims, Laurence C. Abbott, Robert M. Richardson, John W. Goodby & John N. Moore. (2019) Considerations in the determination of orientational order parameters from X-ray scattering experiments. Liquid Crystals 46:1, pages 11-24.
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Suchismita Datta Sarkar, Basana Choudhury & Malay Kumar Das. (2012) Phase transition and some physical properties of binary mixtures of two nematogenic compounds showing induced smectic phase. Phase Transitions 85:1-2, pages 85-95.
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A. Chakraborty, B. Das, M.K. Das, S. Findeisen-Tandel, M.-G. Tamba, U. Baumeister, H. Kresse & W. Weissflog. (2011) New hockey stick compounds with a lateral methyl group showing nematic, synclinic and anticlinic smectic C phases. Liquid Crystals 38:9, pages 1085-1097.
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Gautam Sarkar, Banani Das, Malay Kumar Das, Ute Baumeister & Wolfgang Weissflog. (2011) Structural Investigations of a Non Calamitic Shaped Liquid Crystalline Compound Showing Unusual Phases. Molecular Crystals and Liquid Crystals 540:1, pages 188-195.
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P. Dasgupta, M.K. Das & B. Das. (2011) Physical Properties of Three Liquid Crystals with Negative Dielectric Anisotropy from X-Ray Diffraction and Optical Birefringence Measurements. Molecular Crystals and Liquid Crystals 540:1, pages 154-161.
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S. Haldar, S. Barman, P. K. Mandal, W. Haase & R. Dabrowski. (2010) Influence of Molecular Core Structure and Chain Length on the Physical Properties of Nematogenic Fluorobenzene Derivatives. Molecular Crystals and Liquid Crystals 528:1, pages 81-95.
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Akhileshwar Prasad & Malay Kumar Das. (2009) Orientational order parameters of a binary mixture showing both induced smectic and re-entrant nematic phases. Phase Transitions 82:11, pages 780-792.
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Gautam Sarkar, Malay Kumar Das, Ranjit Paul, Banani Das & Wolfgang Weissflog. (2009) Comparison of the orientational order parameters determined from X-ray diffraction and 13C NMR studies of a hockey stick-shaped compound. Phase Transitions 82:6, pages 433-443.
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S. Biswas, S. Haldar, P. K. Mandal & W. Haase. (2007) X‐ray diffraction and optical birefringence studies on four nematogenic difluorobenzene derivatives. Liquid Crystals 34:3, pages 365-372.
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Malay Kumar Das, Prithwi Dev Roy, Sukla Paul, Ranjit Paul & Banani Das. (2006) Phase Transitions and Physical Properties of a Binary Mixture of Bicyclohexane Compounds, II: X-ray Diffraction Measurements. Molecular Crystals and Liquid Crystals 457:1, pages 55-66.
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B. R. Jaishi & P. K. Mandal. (2006) Optical microscopy, DSC and X‐ray diffraction studies in binary mixtures of 4‐pentyloxy‐4′‐cyanobiphenyl with three 4,4′‐di(alkoxy)azoxybenzenes. Liquid Crystals 33:7, pages 753-765.
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Sonali Ghosh, Pradip Mandal, Sukla Paul, Ranjit Paul & MaryE. Neubert. (2001) Small Angle X-Ray Diffraction Study for the Determination of Structural Parameters of Two Mesomorphic Compounds Having Smectic C Phase. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 365:1, pages 703-710.
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Prithwi Dev Roy, Navin Kumar Pradhan & Malay Kumar Das. (2001) Orientational Order Parameter of a Binary Liquid Crystal Mixture Showing Induced Smectic Phase. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 365:1, pages 593-605.
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Parimal Sarkar, PranabK. Sarkar, Sukla Paul & Pradip Mandal. (2000) X-ray scattering studies on two nematogenic p-alkylphenyl-2-chloro-4-(p-alkylbenzoyloxy)-benzoates and their mixtures. Phase Transitions 71:1, pages 1-12.
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P. Sarkar, P. Mandal, S. Paul, R. Paul, R. Dabrowski & K. Czuprynski. (1999) Small Angle X-Ray Diffraction Studies on the Homologous Series of Mesogenic 4-(trans-4′-n-Alkylcyclohexyl)Isothiocyanatobenzenes. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 330:1, pages 159-165.
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M.K. Das, B. Adhikari, R. Paul, S. Paul, K. Usha Deniz & S.K. Paranjpe. (1999) Temperature Variation of Transverse Correlation Length in the Smectic C and Nematic Phases of a Liquid Crystal from X-Ray and Neutron Diffraction Studies. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 330:1, pages 1-6.
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Anuradha Mukhopadhyay, Golam Mostafa, Siddhartha Ray & S.K. Roy. (1999) Mesomorphic properties and orientational order parameter of 4-pentyl cyclohexyl-4-(4-propyl cyclohexyl) benzoate from X-ray diffraction studies. Phase Transitions 68:2, pages 383-397.
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A. Nath, P. Mandal & S. Paul. (1997) Physical and Molecular Properties of Three Mesogenic Phenyl Cyclohexyl Compounds. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 299:1, pages 483-489.
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Adhikari, R.A. Vora & R. Paul. (1996) Physical Properties of the Mesophases of 4-n-HeptyloxyBenzylidene-4′-AminoAzo Benzene (HBAAB)B. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 287:1, pages 129-138.
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A. Nath, S. Gupta, P. Mandal, S. Paul & H. Schenk. (1996) Structural analysis by X-ray diffraction of a non-polar alkenyl liquid crystalline compound. Liquid Crystals 20:6, pages 765-770.
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A. Nath, P. Mandal, S. Paul & B. Chaudhury. (1996) Determination of Molecular Properties of Some Polar Mesogenic Compounds. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 281:1, pages 57-63.
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B. Adhikari & R. Paul. (1996) Physical properties of three bicyclohexane compounds possessing smectic B phase. I: X-ray diffraction studies. Phase Transitions 56:3, pages 153-163.
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Aparna Nath, Basana Choudhury & Sukla Paul. (1995) Study of Mesomorphic Properties of Three Alkenyl Liquid Crystalline Compounds. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 265:1, pages 699-710.
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Banani Adhikari & Ranjit Paul. (1995) Orientational Order Parameters in the Smectic C and Nematic Phase of Heptyloxyazoxybenzene (HAB). Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 261:1, pages 241-249.
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M.K. Das, R. Paul & D.A. Dunmur. (1995) Small Angle X-Ray Diffraction Studies of an Ester/Biphenyl Mixture (5CB/ME 50.5) Showing an Injected Smectic Phase. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 258:1, pages 239-252.
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M.K. Das & R. Paul. (1994) Study of the physical properties of an ester/biphenyl mixture, exhibiting an injected smectic phase, by small-angle x-ray diffraction. Phase Transitions 48:4, pages 255-268.
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Malay Kumar Das & Ranjit Paul. (1994) Orientational Order Parameters of Binary Mixture 80CB + 60CB Showing Re-entrant Nematic Phase. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 239:1, pages 107-112.
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M.R. Wilson & M.P. Allen. (1993) Computer simulation study of liquid crystal formation in a semi-flexible system of linked hard spheres. Molecular Physics 80:2, pages 277-295.
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A. Seal, M. Mitra, S. Paul & R. Paul. (1993) Orientational Ordering of a Nematogen from X-Ray Diffraction Studies. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 225:1, pages 355-360.
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Banani Adhikari, Gurupada Chaudhuri & Ranjit Paul. (1993) Comparison of experimental order parameters of nematogens with Faber's theory. Liquid Crystals 14:4, pages 1217-1220.
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R. Paul, B. Jha & D.A. Dunmur. (1993) Order parameters and densities in the smectic C, smectic A and nematic phases of a liquid crystal mixture. Liquid Crystals 13:5, pages 629-636.
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M.A. Osipov & B.I. Ostrovskii. (1992) Study of the Orientational Order in Liquid Crystals by X-Ray Scattering. Crystallography Reviews 3:2, pages 113-152.
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Eryk Wolarz & Danuta Bauman. (1991) Polarized Fluorescence Studies of Orientational Order in Some Nematic Liquid Crystals Doped with Stilbene Dye. Molecular Crystals and Liquid Crystals 197:1, pages 1-13.
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R. Paul. (1991) A comparison of experimental order parameters of nematogens with different theories. Liquid Crystals 9:2, pages 239-243.
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M. Mitra, B. Majumdar, R. Paul & S. Paul. (1990) Molecular Properties and Order Parameters of Schiff's Base Compounds. Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics 180:2, pages 187-199.
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M. Mitra, R. Paul & S. Paul. (1989) Mesomorphic Properties And Molecular Structure of Four Closely Related Compounds. Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics 177:1, pages 71-80.
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B. Jha, S. Paul, R. Paul & P. Mandal. (1989) Order parameters of some homologue cybotactic nematics from X-ray diffraction measurements. Phase Transitions 15:1, pages 39-48.
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P. Mandal, M. Mitra, K. Bhattacharjee, R. Paul & S. Paul. (1987) Nematic Order of APAPA from X-Ray Diffraction and Optical Studies. Molecular Crystals and Liquid Crystals 149:1, pages 203-210.
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P. Mandal, M. Mitra, S. Paul & R. Paul. (1987) X-ray diffraction and optical studies of an oriented Setoff's base liquid crystal. Liquid Crystals 2:2, pages 183-193.
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M. Mitra, K. Bhattachahjee, S. Paul & R. Paul. (1987) Orientational order parameters of (-)-2-methyibutyi p- (N- (p- methoxybenzylidene) amino) cinnamate in smectic b phase from x-ray diffraction measurements. Phase Transitions 9:4, pages 337-344.
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V. K. Kelkar & A. S. Paranjpe. (1987) Orientational Order Parameter of Liquid Crystals by X-Ray Diffraction: A Simple Approach. Molecular Crystals and Liquid Crystals Letters 4:5, pages 139-144.
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P. Mandal, S. Paul, H. Schenk & K. Goubitz. (1986) Crystal and Molecular Structure of the Nematogenic Compound 4-Cyanophenyl-4′-n-Heptylbenzoate (CPHB). Molecular Crystals and Liquid Crystals 135:1-2, pages 35-48.
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P. Mandal, R. Paul & S. Paul. (1985) Studies on the Mesophases of OOBPD by X-Ray Diffraction Method. Molecular Crystals and Liquid Crystals 131:3-4, pages 299-314.
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P. Mandal & S. Paul. (1985) X-Ray Studies on the Mesogen 4′-n-Pentyloxy-4-Biphenylcarbonitrile(5OCB) in the Solid Crystalline State. Molecular Crystals and Liquid Crystals 131:3-4, pages 223-235.
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Biswanath Jha, Aparna Nandi, Sukla Paul & Ranjit Paul. (1984) Orientational Distribution Function and Order Parameters for 5-(4-n-ButyIphenyl)-2-(4-CyanophenyI)-Pyrimidine. Molecular Crystals and Liquid Crystals 104:3-4, pages 289-300.
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S. Kobinata, H. Yoshida & S. Maeda. (1983) On a Characteristic of Nematic-Isotropic Phase Transition. Molecular Crystals and Liquid Crystals 99:1, pages 139-144.
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Basana Bhattacharjee, Sukla Paul & Ranjit Paul. (1982) Orientational Distribution Function and Order Parameters of Two 4′-Alkoxy-4-Cyanobiphenyls in Mesomorphic Phase. Molecular Crystals and Liquid Crystals 89:1-4, pages 181-192.
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Basana Bhattacharjee, Ranjit Paul & Sukla Paul. (1982) Order Parameters and Distribution Function of 4'-(N-(p-Pentyloxy Carbonyloxy-Benzylidene)Amino) Valerophenone in Smectic Phase from X-ray Diffraction Measurements. Molecular Crystals and Liquid Crystals 88:1-4, pages 245-254.
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Articles from other publishers (12)

S. Basak, P. Dasgupta, B. Das, M.K. Das & R. Dabrowski. (2011) Determination of Orientational Order Parameters of Two Tri-Component Mixtures from Optical Birefringence and X-Ray Diffraction Measurements. Acta Physica Polonica A 120:6, pages 1037-1042.
Crossref
Suchismita Datta Sarkar & Basana Choudhury. (2011) Optical Microscopy, X-Ray Diffraction, and Dielectric Permittivity Studies in Binary Mixtures of Nematogens Showing Induced Smectic Phase. Physics Research International 2011, pages 1-6.
Crossref
Alberto Sanchez-Castillo, Mikhail A. Osipov & Frank Giesselmann. (2010) Orientational order parameters in liquid crystals: A comparative study of x-ray diffraction and polarized Raman spectroscopy results. Physical Review E 81:2.
Crossref
P D Roy, A Prasad & M K Das. (2009) Study of the physical properties of a mesogenic mixture showing induced smectic A d phase by refractive index, density and x-ray diffraction measurements . Journal of Physics: Condensed Matter 21:7, pages 075106.
Crossref
A P Divya, D Revannasiddaiah, R Somashekar & M S Madhava. (1999) Microscopic order parameter of two nematogenic compounds using X-rays. Bulletin of Materials Science 22:2, pages 129-132.
Crossref
G.A. Oweimreen & M.A. Morsy. (1999) DSC studies on p-cyanophenyl p-(n-alkyl)benzoate liquid crystals: evidence for polymorphism and conformational change. Thermochimica Acta 325:2, pages 111-118.
Crossref
Mark R. Wilson. (1996) Determination of order parameters in realistic atom-based models of liquid crystal systems. Journal of Molecular Liquids 68:1, pages 23-31.
Crossref
Moshe Deutsch. (1991) Orientational order determination in liquid crystals by x-ray diffraction. Physical Review A 44:12, pages 8264-8270.
Crossref
G. R. Mitchell & A. H. Windle. 1988. Developments in Crystalline Polymers. Developments in Crystalline Polymers 115 175 .
S. D. Durbin & Y. R. Shen. (1984) Two-photon dichroism studies of molecular-orientational distribution in a nematic liquid crystal. Physical Review A 30:3, pages 1419-1429.
Crossref
B. Jha, B. Bhattacharjee, S. Paul & R. Paul. (1983) X-ray diffraction studies on the mesophases of n-p-cyanobenzylidene-p-octyloxy aniline in magnetic field. Physica Status Solidi (a) 76:2, pages 461-466.
Crossref
D. Demus, S. Diele, S. Grande & H. Sackmann. 1983. 1 107 .

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