Temperature dependence of the electrical conductivity in 4, 4′ bis(2-thenylideneamino)biphenyl and 4, 4′ bis(thenyldiphenyl-phosphinylmethyleneamino)biphenyl compounds.
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| Title: | Temperature dependence of the electrical conductivity in 4, 4′ bis(2-thenylideneamino)biphenyl and 4, 4′ bis(thenyldiphenyl-phosphinylmethyleneamino)biphenyl compounds. |
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| Authors: | El-Sayed, B.1, El-Nawawy, M.1, Abd Ellah, E.1, Farag, R.1 |
| Source: | Journal of Materials Science. Jun1999, Vol. 34 Issue 11, p2715-2718. 4p. |
| Subjects: | Electric conductivity, Biphenyl compounds, Temperature, Molecular structure, Band gaps |
| Abstract: | Correlation of the molecular structure and utilizing measurements of the electrical conductivity, activation energy of conduction of 4,4′ bis(2-thenylideneamino)biphenyl (SB) and 4,4′ bis(thenyl-diphenylphosphinylmethyleneamino)biphenyl (OPSB) compounds have been carried out. The results of the activation energies, obtained from the electrical conductivity measurements, as well as the energy gaps calculated from ultraviolet (u.v.) and visible spectra in the solid state indicate that the investigated compounds behave like semiconducting materials. The delocalized π-electrons in addition to the lone pairs of electrons on the nitrogen atoms of the two compounds as well as the donor effect of diphenylphosphinyl groups of OPSB compound were considered as the main sources participating in the conduction processes. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 52536811 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Temperature dependence of the electrical conductivity in 4, 4′ bis(2-thenylideneamino)biphenyl and 4, 4′ bis(thenyldiphenyl-phosphinylmethyleneamino)biphenyl compounds. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22El-Sayed%2C+B%2E%22">El-Sayed, B.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22El-Nawawy%2C+M%2E%22">El-Nawawy, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Abd+Ellah%2C+E%2E%22">Abd Ellah, E.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Farag%2C+R%2E%22">Farag, R.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%22">Journal of Materials Science</searchLink>. Jun1999, Vol. 34 Issue 11, p2715-2718. 4p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Electric+conductivity%22">Electric conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Biphenyl+compounds%22">Biphenyl compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature%22">Temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+structure%22">Molecular structure</searchLink><br /><searchLink fieldCode="DE" term="%22Band+gaps%22">Band gaps</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Correlation of the molecular structure and utilizing measurements of the electrical conductivity, activation energy of conduction of 4,4′ bis(2-thenylideneamino)biphenyl (SB) and 4,4′ bis(thenyl-diphenylphosphinylmethyleneamino)biphenyl (OPSB) compounds have been carried out. The results of the activation energies, obtained from the electrical conductivity measurements, as well as the energy gaps calculated from ultraviolet (u.v.) and visible spectra in the solid state indicate that the investigated compounds behave like semiconducting materials. The delocalized π-electrons in addition to the lone pairs of electrons on the nitrogen atoms of the two compounds as well as the donor effect of diphenylphosphinyl groups of OPSB compound were considered as the main sources participating in the conduction processes. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1023/A:1004685623739 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 4 StartPage: 2715 Subjects: – SubjectFull: Electric conductivity Type: general – SubjectFull: Biphenyl compounds Type: general – SubjectFull: Temperature Type: general – SubjectFull: Molecular structure Type: general – SubjectFull: Band gaps Type: general Titles: – TitleFull: Temperature dependence of the electrical conductivity in 4, 4′ bis(2-thenylideneamino)biphenyl and 4, 4′ bis(thenyldiphenyl-phosphinylmethyleneamino)biphenyl compounds. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: El-Sayed, B. – PersonEntity: Name: NameFull: El-Nawawy, M. – PersonEntity: Name: NameFull: Abd Ellah, E. – PersonEntity: Name: NameFull: Farag, R. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun1999 Type: published Y: 1999 Identifiers: – Type: issn-print Value: 00222461 Numbering: – Type: volume Value: 34 – Type: issue Value: 11 Titles: – TitleFull: Journal of Materials Science Type: main |
| ResultId | 1 |
