at Google ScholarTitle data
Costa, Paulo S. ; Hao, Guanhua ; N’Diaye, Alpha T. ; Routaboul, Lucie ; Braunstein, Pierre ; Zhang, Xin ; Zhang, Jian ; Ekanayaka, Thilini K. ; Shi, Qin-Yin ; Schlegel, Vicki ; Doudin, Bernard ; Enders, Axel ; Dowben, P. A.:
Manipulation of the molecular spin crossover transition of Fe(H₂B(pz)₂)₂(bipy) by addition of polar molecules.
In: Journal of Physics: Condensed Matter.
Vol. 32
(2020)
Issue 3
.
- 034001.
ISSN 1361-648X
DOI: https://doi.org/10.1088/1361-648X/ab468c
Abstract in another language
The addition of various dipolar molecules is shown to affect the temperature dependence of the spin state occupancy of the much studied spin crossover Fe(II) complex, [Fe{H2B(pz)2}2(bipy)] (pz = pyrazol-1-yl, bipy = 2,2'-bipyridine). Specifically, the addition of benzimidazole results in a re-entrant spin crossover transition, i.e. the spin state starts in the mostly low spin state, then high spin state occupancy increases, and finally the high spin state occupancy decreases with increasing temperature. This behavior contrasts with that observed when the highly polar p -benzoquinonemonoimine zwitterion C6H2(...NH2)2(...O)2 was mixed with [Fe{H2B(pz)2}2(bipy)], which resulted in locking [Fe{H2B(pz)2}2(bipy)] largely into a low spin state while addition of the ethyl derivative C6H2(...NHC2H5)2(...O)2 did not appear to perturb the spin crossover transition of [Fe{H2B(pz)2}2(bipy)].
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Keywords: | Spin crossover metal organic molecules; x-ray absorption spectroscopy; dipolar heteromolecular molecular interactions; re-entrant transition. |
| Institutions of the University: | Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics XI and Didactics of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics XI and Didactics of Physics > Chair Experimental Physics XI and Didactics of Physics - Univ.-Prof. Dr. Axel Enders Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science > 530 Physics |
| Date Deposited: | 28 Oct 2019 06:32 |
| Last Modified: | 18 Jan 2024 14:27 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/52861 |