Structural control of dithiazolyl radicals: Case studies on 3′- and 4′-cyano-benzo-1,3,2-dithiazolyl, NCC6H3S2N
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| Title: | Structural control of dithiazolyl radicals: Case studies on 3′- and 4′-cyano-benzo-1,3,2-dithiazolyl, NCC |
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| Authors: | Alberola, Antonio1, Burley, Jonathan1, Collis, Rebecca J.1, Less, Robert J.1, Rawson, Jeremy M. jmr31@cus.cam.ac.uk |
| Source: | Journal of Organometallic Chemistry. Jun2007, Vol. 692 Issue 13, p2750-2760. 11p. |
| Subjects: | Radicals (Chemistry), Chemical structure, Spectrum analysis, Electronic structure |
| Abstract: | Abstract: Dithiazolyl radicals with π-stacking motifs have attracted particular interest because of their ability to exhibit spin-switching between diamagnetic distorted π-stacks and paramagnetic regular π-stacked structures through a solid state phase transition. Previous studies indicate that inclusion of electronegative heteroatoms into the backbone favours lamellar structures. This methodology has been extended to the synthesis and characterisation of the title compound, 4′-cyanobenzo-1,3,2-dithiazolyl (4-NCBDTA). Its electronic structure is probed through DFT calculations, cyclic voltammetry and EPR spectroscopy and its crystal structure determined by X-ray powder diffraction at room temperature. Variable temperature SQUID magnetometry reveals that 4-NCBDTA undergoes two phase transitions, each exhibiting bistability; a high temperature phase transition occurs at room temperature (T C↓ =291K, T C↑ =304K, ΔT =13K); whilst the low temperature phase transition occurs below liquid nitrogen temperatures (T C↓ =37K, T C↑ =28K;ΔT =9K). [Copyright &y& Elsevier] |
| Copyright of Journal of Organometallic Chemistry is the property of Elsevier B.V. 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 25035630 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Structural control of dithiazolyl radicals: Case studies on 3′- and 4′-cyano-benzo-1,3,2-dithiazolyl, NCC<subscript>6</subscript>H<subscript>3</subscript>S<subscript>2</subscript>N – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Alberola%2C+Antonio%22">Alberola, Antonio</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Burley%2C+Jonathan%22">Burley, Jonathan</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Collis%2C+Rebecca+J%2E%22">Collis, Rebecca J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Less%2C+Robert+J%2E%22">Less, Robert J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rawson%2C+Jeremy+M%2E%22">Rawson, Jeremy M.</searchLink><i> jmr31@cus.cam.ac.uk</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Organometallic+Chemistry%22">Journal of Organometallic Chemistry</searchLink>. Jun2007, Vol. 692 Issue 13, p2750-2760. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Radicals+%28Chemistry%29%22">Radicals (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+structure%22">Chemical structure</searchLink><br /><searchLink fieldCode="DE" term="%22Spectrum+analysis%22">Spectrum analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Electronic+structure%22">Electronic structure</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Dithiazolyl radicals with π-stacking motifs have attracted particular interest because of their ability to exhibit spin-switching between diamagnetic distorted π-stacks and paramagnetic regular π-stacked structures through a solid state phase transition. Previous studies indicate that inclusion of electronegative heteroatoms into the backbone favours lamellar structures. This methodology has been extended to the synthesis and characterisation of the title compound, 4′-cyanobenzo-1,3,2-dithiazolyl (4-NCBDTA). Its electronic structure is probed through DFT calculations, cyclic voltammetry and EPR spectroscopy and its crystal structure determined by X-ray powder diffraction at room temperature. Variable temperature SQUID magnetometry reveals that 4-NCBDTA undergoes two phase transitions, each exhibiting bistability; a high temperature phase transition occurs at room temperature (T C↓ =291K, T C↑ =304K, ΔT =13K); whilst the low temperature phase transition occurs below liquid nitrogen temperatures (T C↓ =37K, T C↑ =28K;ΔT =9K). [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Organometallic Chemistry is the property of Elsevier B.V. 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: 10.1016/j.jorganchem.2006.12.020 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 2750 Subjects: – SubjectFull: Radicals (Chemistry) Type: general – SubjectFull: Chemical structure Type: general – SubjectFull: Spectrum analysis Type: general – SubjectFull: Electronic structure Type: general Titles: – TitleFull: Structural control of dithiazolyl radicals: Case studies on 3′- and 4′-cyano-benzo-1,3,2-dithiazolyl, NCC6H3S2N Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Alberola, Antonio – PersonEntity: Name: NameFull: Burley, Jonathan – PersonEntity: Name: NameFull: Collis, Rebecca J. – PersonEntity: Name: NameFull: Less, Robert J. – PersonEntity: Name: NameFull: Rawson, Jeremy M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2007 Type: published Y: 2007 Identifiers: – Type: issn-print Value: 0022328X Numbering: – Type: volume Value: 692 – Type: issue Value: 13 Titles: – TitleFull: Journal of Organometallic Chemistry Type: main |
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