Speaker
Dr
Wasinee Phonsri
(Monash University)
Description
A family of Fe(II) spin crossover complexes with halogen substituted 5-X-N-(8-quinolyl)salicylaldimines (HqsalX, X = F 1, Cl 2, Br 3 and I 4) has been investigated. With N4O2 octahedral environments, a somewhat unusual donor system for Fe(II) spin crossover [1], this is the first time that [Fe(II)(qsal-X)2] complexes have been studied [2]. Compounds 2, 3 and 4 unexpectedly show completed abrupt spin transition at or above RT. Importantly, compound 4 also exhibits the photoconversion efficiency, above 90 % with a T(LIESST) temperature estimated at 54 K. Variable temperature single crystal structures are performed in both LS and HS states for complexes 2 and 3. The influence on spin crossover properties are discussed of intermolecular interactions and structural packing effects in various halogen substitution complexes.
References
1 A. Hauser, Ligand Field Theoretical Considerations, in Spin crossover in transition metal compounds , P. Gütlich; H. A. Goodwin, Eds. Springer Berlin Heidelberg: 2004; 233, 49-58.
2 B. Weber, Coord. Chem. Rev. 2009, 253, 2432-2449.
| Keywords or phrases (comma separated) | Fe(II), Spin crossover, Single crystal structure, Magnetic properties |
|---|---|
| Are you an ECR? (<5 yrs</br>since PhD/Masters) | Yes |
| Do you wish to take part in</br>the Student Poster Slam? | No |
| What is your gender? | Female |
| Are you a student? | No |
Primary author
Dr
Wasinee Phonsri
(Monash University)
Co-authors
Dr
Boujemaa Moubaraki
(Monash University)
Dr
Guy N. L. Jameson
(University of Otago)
Dr
Jas S. Ward
(University of Canterbury)
Prof.
Keith Murray
(Monash University)
Prof.
Paul E. Kruger
(University of Canterbury)
