Synthesis, mixed-spin-state structure and Langmuir-Blodgett deposition of amphiphilic Fe(iii) quinolylsalicylaldiminate complexes.

Autor: Poungsripong P; Functional Materials and Nanotechnology Center of Excellence, Walailak University Thasala Nakhon Si Thammarat 80160 Thailand., Boonprab T; School of Chemistry, Institute of Science, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand david@g.sut.ac.th., Harding P; School of Chemistry, Institute of Science, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand david@g.sut.ac.th., Murray KS; School of Chemistry, Monash University Clayton VIC 3800 Australia., Phonsri W; School of Chemistry, Monash University Clayton VIC 3800 Australia., Zhang N; School of Chemistry, University of Southampton University Road Southampton SO17 1BJ UK., Kitchen JA; Department of Chemistry, Auckland University of Technology New Zealand jonathan.kitchen@aut.ac.nz.; The MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand., Harding DJ; School of Chemistry, Institute of Science, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand david@g.sut.ac.th.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2024 Sep 10; Vol. 14 (39), pp. 28716-28723. Date of Electronic Publication: 2024 Sep 10 (Print Publication: 2024).
DOI: 10.1039/d4ra06111j
Abstrakt: Designing and integrating Fe(iii)-based spin crossover (SCO) complexes onto substrates remains a challenging goal with only a handful of examples reported. In this work, we successfully synthesized and characterized three [Fe(qsal-OR) 2 ]NO 3 (qsal-OR = 5-alkoxy-2-[(8-quinolylimino)methyl]phenolate) complexes, in which R = C 12 H 25 1, C 16 H 33 2, and C 22 H 45 3 to explore the impact of alkyl chain on the modulation of SCO activity and potential for self-assembly on a glass surface. The SCO is found to be gradual and incomplete in all cases, with the LS state more stabilised as the alkyl group shortens. We also demonstrate that all complexes form stable Langmuir films and achieve good transfer ratios to the glass surface, with 2 being the best in terms of stability. This paves the way for the SCO modulation of complexes in this class and the development of SCO devices.
Competing Interests: There are no conflicts to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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