A new linear trinuclear cobalt complex bearing oximato and azido ligands: synthesis, structure, and magnetic characterization

The reaction of CoCl 2  · 6H 2 O, mpkoH (methyl 2-pyridyl ketone oxime), NEt 3 , and NaN 3 in a 1 : 1 : 2 : 1 molar ratio affords a linear trinuclear complex, [ Co II (mpko) 4 (N 3 ) 4 (H 2 O) 2 ] (1). Complex 1 has been characterized by single-crystal X-ray diffraction, elemental analysis, and infr...

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Bibliographic Details
Published in:Journal of coordination chemistry 2012-09, Vol.65 (18), p.3308-3315
Main Authors: Qiu, Xiu-Min, Wang, Su-Na, Lu, Jing, Kong, Ling-Qian, Li, Da-Cheng, Dou, Jian-Min
Format: Article
Language:English
Subjects:
Cobalt
Cobalt complex
Crystal structure
Diffraction
Distortion
Ligands
Magnetic permeability
Magnetic properties
Mineralogy
Networks
Oxime
Oximes
Three dimensional
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Summary:The reaction of CoCl 2  · 6H 2 O, mpkoH (methyl 2-pyridyl ketone oxime), NEt 3 , and NaN 3 in a 1 : 1 : 2 : 1 molar ratio affords a linear trinuclear complex, [ Co II (mpko) 4 (N 3 ) 4 (H 2 O) 2 ] (1). Complex 1 has been characterized by single-crystal X-ray diffraction, elemental analysis, and infrared spectrum. Three cobalt ions are in the center of distorted octahedra, which are connected by two μ-1,1 azides and two oxime oxygen atoms to form a linear trinuclear structure. Discrete units of 1 are connected to form a stable 3-D supramolecular network by C-H···O and C-H···N weak interactions. Variable temperature magnetic susceptibility measurements reveal that 1 exhibits antiferromagnetic behavior.
ISSN:0095-8972
1029-0389
DOI:10.1080/00958972.2012.703779