Photoluminescence and Magnetism Study of Blue Light Emitting the Oxygen-Bridged Open-Cubane Cobalt(II) Cluster

Photoluminescence and Magnetism Study of Blue Light Emitting the Oxygen-Bridged Open-Cubane... A new cubane-based cobalt(II) cluster, [Co L ](1), where H L = 2-((E)-(2-hydroxyethylimino) methyl)-4-chlorophenol 4 4 2 has been prepared using a solvothermal process and characterized by structural, optical and magnetism. The crystal structure of 1 consists of a tetranuclear Co O core in an open-cubane framework. Each cobalt(II) ion is penta-coordinated 4 4 in a distorted square pyramidal geometry (s = 0.030, s = 0.023). Furthermore, the photoluminescence Co1=Co1i Co2=Co2i analysis indicates that 1 has a strong blue emission which should be attributed to coordination of the metal to the ligand. The temperature dependence of the magnetic susceptibilities of 1 shows antiferromagnetic coupling (J = - 26.61 ± 0.01) between cobalt(II) ions. Keywords Schiff base  Open-cubane Co(II) cluster  Photoluminescence  Antiferromagnetic interaction Introduction electron transport, light emission, higher thermal stability and their ease of sublimation [17–20]. They are widely The design, synthesis, and characterization of polynuclear used as light emitting materials and an electron transport- transition metal complexes have attracted considerable ing materials in organic light emitting diodes (OLED) attention in the development of coordination chemistry applications [21–23]. Their optical properties can be easily [1, 2], molecular magnetism [3, 4], bioinorganic chemistry adjusted through the coordinated http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Cluster Science Springer Journals

Photoluminescence and Magnetism Study of Blue Light Emitting the Oxygen-Bridged Open-Cubane Cobalt(II) Cluster

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Chemistry; Catalysis; Inorganic Chemistry; Physical Chemistry; Nanochemistry
ISSN
1040-7278
eISSN
1572-8862
D.O.I.
10.1007/s10876-018-1406-2
Publisher site
See Article on Publisher Site

Abstract

A new cubane-based cobalt(II) cluster, [Co L ](1), where H L = 2-((E)-(2-hydroxyethylimino) methyl)-4-chlorophenol 4 4 2 has been prepared using a solvothermal process and characterized by structural, optical and magnetism. The crystal structure of 1 consists of a tetranuclear Co O core in an open-cubane framework. Each cobalt(II) ion is penta-coordinated 4 4 in a distorted square pyramidal geometry (s = 0.030, s = 0.023). Furthermore, the photoluminescence Co1=Co1i Co2=Co2i analysis indicates that 1 has a strong blue emission which should be attributed to coordination of the metal to the ligand. The temperature dependence of the magnetic susceptibilities of 1 shows antiferromagnetic coupling (J = - 26.61 ± 0.01) between cobalt(II) ions. Keywords Schiff base  Open-cubane Co(II) cluster  Photoluminescence  Antiferromagnetic interaction Introduction electron transport, light emission, higher thermal stability and their ease of sublimation [17–20]. They are widely The design, synthesis, and characterization of polynuclear used as light emitting materials and an electron transport- transition metal complexes have attracted considerable ing materials in organic light emitting diodes (OLED) attention in the development of coordination chemistry applications [21–23]. Their optical properties can be easily [1, 2], molecular magnetism [3, 4], bioinorganic chemistry adjusted through the coordinated

Journal

Journal of Cluster ScienceSpringer Journals

Published: Jun 2, 2018

References

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