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Crystal structures, magnetic properties and DFT study of cobalt(II) azido complexes with the condensation product of 2-quinolinecarboxaldehyde and Girard's T reagent

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2018
Authors
Romanović, Mima
Milenković, Milica R.
Pevec, Andrej
Turel, Iztok
Spasojević, Vojislav
Grubišić, Sonja
Radanović, Dušanka
Anđelković, Katarina
Čobeljić, Božidar
Article (Published version)
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Abstract
A tridentate NNO condensation product of 2-quinolinecarboxaldehyde and Girard's T reagent (HLC1) in the presence of azide ions coordinates with cobalt(II) giving mononuclear azido Co(II) complex [CoHL (N-3)(3)](1) as a main product and dinuclear end-on azido bridged Co(II) complex [Co2L2(mu-(1,1)-N-3)(2)(N-3)(2)] (2) in traces. Crystal structures of both complexes were determined. Variable temperature magnetic susceptibility measurement studies of complex I showed that Co(II) cation is in the low-spin state with t(2g)(6)e(g)(1) (S = 1/2) configuration. DFT-BS calculations for complex 2 anticipated ferromagnetic type interaction between paramagnetic centers (J = 53 cm(-1)).
Keywords:
Hydrazones / Cobalt(II) azido complexes / Single crystal structures / DFT calculations / Magnetic properties
Source:
Polyhedron, 2018, 139, 142-147
Publisher:
  • Pergamon-Elsevier Science Ltd, Oxford
Projects:
  • Interactions of natural products, their derivatives and coordination compounds with proteins and nucleic acids (RS-172055)
  • COST Action ECOSTBio (Explicit Control Over Spin-States in Technology and Biochemistry) including a STSM grant [CM1305, COST-STSM-CM1305-25068]
  • Slovenian Research Agency [P-0175]
Note:
  • The peer-reviewed version: http://cer.ihtm.bg.ac.rs/handle/123456789/3006

DOI: 10.1016/j.poly.2017.10.018

ISSN: 0277-5387

WoS: 000419409900016

Scopus: 2-s2.0-85032457069
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/2476
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