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Field-Induced Single Molecule Magnetic Behavior of Mononuclear Cobalt(II) Schiff Base Complex Derived from 5-Bromo Vanillin

Elemo, Fikre; Schlittenhardt, Sören 1; Sani, Taju; Rajnák, Cyril; Linert, Wolfgang; Boča, Roman; Thomas, Madhu ; Ruben, Mario 1,2
1 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)
2 Institut für QuantenMaterialien und Technologien (IQMT), Karlsruher Institut für Technologie (KIT)

Abstract:

A mononuclear Co(II) complex of a Schiff base ligand derived from 5-Bromo-vanillin and 4-aminoantipyrine, that has a compressed tetragonal bipyramidal geometry and exhibiting field-induced slow magnetic relaxation, has been synthesized and characterized by single crystal X-ray diffraction, elemental analysis and molecular spectroscopy. In the crystal packing, a hydrogen-bonded dimer structural topology has been observed with two distinct metal centers having slightly different bond parameters. The complex has been further investigated for its magnetic nature on a SQUID magnetometer. The DC magnetic data confirm that the complex behaves as a typical S = 3/2 spin system with a sizable axial zero-field splitting parameter D/hc = 38 cm⁻¹. The AC susceptibility data reveal that the relaxation time for the single-mode relaxation process is τ = 0.16(1) ms at T = 2.0 K and BDC = 0.12 T.


Verlagsausgabe §
DOI: 10.5445/IR/1000150613
Veröffentlicht am 10.11.2022
Originalveröffentlichung
DOI: 10.3390/inorganics10080105
Scopus
Zitationen: 1
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Institut für QuantenMaterialien und Technologien (IQMT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 2304-6740
KITopen-ID: 1000150613
HGF-Programm 47.12.02 (POF IV, LK 01) Exploratory Qubits
Erschienen in Inorganics
Verlag MDPI
Band 10
Heft 8
Seiten Art.-Nr.: 105
Vorab online veröffentlicht am 25.07.2022
Nachgewiesen in Web of Science
Scopus
Dimensions
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