Synergetic spin singlet-quintet switching and luminescence in mononuclear Fe(<sc>ii</sc>) 1,3,4-oxadiazole tetradentate chelates with NCBH<sub>3</sub> co-ligand - Forschungsportal der Justus-Liebig-Universität Gießen:

Journalartikel

Synergetic spin singlet-quintet switching and luminescence in mononuclear Fe(ii) 1,3,4-oxadiazole tetradentate chelates with NCBH₃ co-ligand

Autorenliste: Sundaresan, Sriram; Becker, Jens-Georg; Eppelsheimer, Julian; Sedykh, Alexander E.; Carrella, Luca M.; Mueller-Buschbaum, Klaus; Rentschler, Eva

Jahr der Veröffentlichung: 2023

Seiten: 13181-13189

Zeitschrift: Dalton Transactions

Bandnummer: 52

Heftnummer: 37

ISSN: 1477-9226

eISSN: 1477-9234

DOI Link: https://doi.org/10.1039/d3dt02420b

Verlag: Royal Society of Chemistry

Abstract:
We report the multi-step synthesis of the tetradentate 2-(naphthalen-2-yl)-5-[N,N-bis(2-pyridylmethyl) aminomethyl]-1,3,4-oxadiazole ligand (LTTetra-ODA) along with its corresponding [Fe-II(LTetra-ODA) (NCBH3)(2)].1.5CH(3)OH (C1) complex, which is the first mononuclear 1,3,4-oxadiazole based Fe(II) spin crossover (SCO) complex, and its zinc analogue [Zn-II(LTetra-ODA)(NCBH3)(2)].0.5H(2)O (C2). The spin transition is followed by variable temperature (VT-) X-ray crystallography of [Fe(LTetra-ODA)(NCBH3)(2)].1.5CH(3)OH (C1) at 120 and 220 K. The magnetic susceptibility measurements on the bulk sample recorded from 2 to 300 K show that the complex exhibits a complete abrupt reversible spin transition with a T-1/2 of 207 K. The loss of the lattice solvent methanol shifts the T-1/2 slightly to around 210 K. The spin transition in solu-tion for [Fe(LTetra-ODA)(NCBH3)(2)].1.5CH(3)OH (C1) was followed using the VT-1H-NMR Evans method in CD3CN, with a T-1/2 of 357 K. Solid state VT luminescence studies provide some preliminary evidence of interplay of luminescence and spin transition in the [Fe(LTetra-ODA)(NCBH3)(2)].1.5CH(3)OH (C1) complex.

Zitierstile

Harvard-Zitierstil: Sundaresan, S., Becker, J., Eppelsheimer, J., Sedykh, A., Carrella, L., Mueller-Buschbaum, K., et al. (2023) Synergetic spin singlet-quintet switching and luminescence in mononuclear Fe(ii) 1,3,4-oxadiazole tetradentate chelates with NCBH₃ co-ligand, Dalton Transactions, 52(37), Article d3dt02420b. pp. 13181-13189. https://doi.org/10.1039/d3dt02420b

APA-Zitierstil: Sundaresan, S., Becker, J., Eppelsheimer, J., Sedykh, A., Carrella, L., Mueller-Buschbaum, K., & Rentschler, E. (2023). Synergetic spin singlet-quintet switching and luminescence in mononuclear Fe(ii) 1,3,4-oxadiazole tetradentate chelates with NCBH₃ co-ligand. Dalton Transactions. 52(37), Article d3dt02420b, 13181-13189. https://doi.org/10.1039/d3dt02420b

Zitierstile

Schlagwörter