Detail publikace

Levamisole Based Co(II) Single-Ion Magnet

BISWAS, S. HAVLÍČEK, L. NEMEC, I. ŠALITROŠ, I. MANDAL, L. NEUGEBAUER, P. SENTHIL KUMAR, K. RUBEN, M.

Originální název

Levamisole Based Co(II) Single-Ion Magnet

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

A new Co(II) complex, [Co(NCS)(2)(L)(2)] (1) has been synthesized based on levamisole (L) as a new ligand. Single-crystal X-ray diffraction analyses confirm that the Co(II) ion is having a distorted tetrahedral coordination geometry in the complex. Notably strong intramolecular S center dot center dot center dot S and S center dot center dot center dot N interactions has been confirmed by employing Quantum Theory of Atoms in Molecules (QTAIM). These intramolecular interactions occur among the sulfur and nitrogen atoms of the levamisole ligands and also the nitrogen atoms of the thiocyanate. Direct current (dc) magnetic analyses reveal presence of zero field splitting (ZFS) and large magnetic anisotropy on Co(II). Detailed ab initio ligand field theory calculations quantitatively predicted the magnitude of ZFS. Prominent field-induced single-ion magnet (SIM) behavior was observed for 1 from dynamic magnetization measurements. Slow magnetic relaxation follows an Orbach mechanism with the effective energy barrier U-eff=29.6 (7) K and relaxation time tau(o)=1.4 (4)x10(-9) s.

Klíčová slova

Single ion magnet; Cobalt(II) ion; Levamisole; Magnetic anisotropy; ab initio calculations

Autoři

BISWAS, S.; HAVLÍČEK, L.; NEMEC, I.; ŠALITROŠ, I.; MANDAL, L.; NEUGEBAUER, P.; SENTHIL KUMAR, K.; RUBEN, M.

Vydáno

2. 9. 2024

Nakladatel

WILEY-V C H VERLAG GMBH

Místo

WEINHEIM

ISSN

1861-471X

Periodikum

Chemistry - An Asian Journal

Ročník

19

Číslo

17

Stát

Spolková republika Německo

Strany počet

7

URL

https://aces.onlinelibrary.wiley.com/doi/10.1002/asia.202400574

BibTex

@article{BUT189872,
  author="Soumava {Biswas} and Lubomír {Havlíček} and Ivan {Nemec} and Ivan {Šalitroš} and Leena {Mandal} and Petr {Neugebauer} and Kuppusamy {Senthil Kumar} and Mario {Ruben}",
  title="Levamisole Based Co(II) Single-Ion Magnet",
  journal="Chemistry - An Asian Journal",
  year="2024",
  volume="19",
  number="17",
  pages="7",
  doi="10.1002/asia.202400574",
  issn="1861-471X",
  url="https://aces.onlinelibrary.wiley.com/doi/10.1002/asia.202400574"
}