Characterization of structural, electrical conductivity and dielectric properties of 1',3'-dihydro-1',3',3'-trimethyl-6-nitrospiro[2H-1benzopyran-2,2'[2H] indole] compound
elgarhy, E., El-Nahass, M., Zayed, H., Ali, ,. (2021). Characterization of structural, electrical conductivity and dielectric properties of 1',3'-dihydro-1',3',3'-trimethyl-6-nitrospiro[2H-1benzopyran-2,2'[2H] indole] compound. EKB Journal Management System, 38(part 1 (Basic Sciences)), 36-57. doi: 10.21608/jsrs.2021.210654
eman emad elgarhy; M.M. El-Nahass; H.A. Zayed; , H. A. M. Ali. "Characterization of structural, electrical conductivity and dielectric properties of 1',3'-dihydro-1',3',3'-trimethyl-6-nitrospiro[2H-1benzopyran-2,2'[2H] indole] compound". EKB Journal Management System, 38, part 1 (Basic Sciences), 2021, 36-57. doi: 10.21608/jsrs.2021.210654
elgarhy, E., El-Nahass, M., Zayed, H., Ali, ,. (2021). 'Characterization of structural, electrical conductivity and dielectric properties of 1',3'-dihydro-1',3',3'-trimethyl-6-nitrospiro[2H-1benzopyran-2,2'[2H] indole] compound', EKB Journal Management System, 38(part 1 (Basic Sciences)), pp. 36-57. doi: 10.21608/jsrs.2021.210654
elgarhy, E., El-Nahass, M., Zayed, H., Ali, ,. Characterization of structural, electrical conductivity and dielectric properties of 1',3'-dihydro-1',3',3'-trimethyl-6-nitrospiro[2H-1benzopyran-2,2'[2H] indole] compound. EKB Journal Management System, 2021; 38(part 1 (Basic Sciences)): 36-57. doi: 10.21608/jsrs.2021.210654

Characterization of structural, electrical conductivity and dielectric properties of 1',3'-dihydro-1',3',3'-trimethyl-6-nitrospiro[2H-1benzopyran-2,2'[2H] indole] compound

Journal of Scientific Research in Science
Article 4, Volume 38, part 1 (Basic Sciences), January 2021, Page 36-57  XML PDF (853.94 K)
Document Type: Original Article
DOI: 10.21608/jsrs.2021.210654
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Authors
eman emad elgarhy email 1; M.M. El-Nahass2; H.A. Zayed3; , H. A. M. Ali2
1physics, faculty of women ain shams university / Cairo Egypt
2Physics Department, Faculty of Education, Ain Shams University, Rorxy Square, 11757, Cairo, Egypt.
3Physics Department, Faculty of Woman for Art, Sciences and Education, Ain Shams University, Cairo, Egypt.
Abstract
The structural properties of 1',3'-dihydro-1',3',3'-trimethyl-6-nitrospiro [2H-1-benzopyran-2,2'-[2H]indole] (DTNBI) characterized using X-ray diffraction.  DTNBI's powder has a monoclinic polycrystalline structure. The DTNBI's lattice constant of unit cell are ( a = 29.912 Å, b = 18.815 Å, and c = 13.062 Å). The mean crystallite size and strain were evaluated using the formula of Scherrer, Williamson-Hall, and Size-Strain plots methods. In the frequency range of 40 to 5×106 Hz, the dependence of ac conductivity was studiedforthe bulk DTNBI upon different temperatures (303-363 K). The prevailing mechanism for the ac conduction was the correlated barrier hopping model for bulk DTNBI.The dielectric constant and the dielectric loss were also studied. The dielectric polarization mechanism of bulk DTNBI used to explain the behavior of the real, ε1, and imaginary, ε2, components of the complex dielectric constant. Reliance of dc and ac conductivity of bulk DTNBI follows the law of Arrhenius. The activation energy of both dc and ac conduction for bulk DTNBI were calculated and the dielectric characteristics were examined via complex electric modulus formalism.
Keywords
Structural properties; Electricalconductivity; Spiropyrans
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