Syntheses, Crystal Structures, and Magnetic Properties of Two Meta-Substituted Benzyl Triphenylphosphinium Tetra(isothiocyanate)cobaltate(II) Complexes

Two new complexes of tetra(isothiocyanate)cobalt(II) dianion and meta-substituted benzyl triphenylphosphinium, [3BrBzTPP] 2 [Co(NCS) 4 ] (1) and [3CNBzTPP] 2 [Co(NCS) 4 ] (2) ([3BrBzTPP] + = 1-(3′-bromobenzyltriphenylphosphonium and [3CNBzTPP] + = 1-(3′-cyanobenzyltriphenylphosphonium), were prepare...

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Published in:Inorganic and nano-metal chemistry 2014-08, Vol.44 (7), p.980-985
Main Authors: Chen, Wei-Qiang, Su, Li-Jie, Cai, Xiao-Qi, Yang, Jing-Jing, Qian, Ye-Long, Liu, Xiao-Ping, Yang, Le-Min, Zhou, Jia-Rong, Ni, Chun-Lin
Format: Article
Language:English
Subjects:
Anions
antiferromagnetic interaction
Antiferromagnetism
Bonding strength
Chemical analysis
Cobalt
crystal structures
Crystallization
Diffraction
Hydrogen bonds
Magnetic permeability
Magnetic properties
meta-substituted benzyl triphenylphosphinium
Nanostructure
Single crystals
Spectra
Stacking
Substitutes
tetra(isothiocyanate)cobaltate(II) anion
weak interactions
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Summary:Two new complexes of tetra(isothiocyanate)cobalt(II) dianion and meta-substituted benzyl triphenylphosphinium, [3BrBzTPP] 2 [Co(NCS) 4 ] (1) and [3CNBzTPP] 2 [Co(NCS) 4 ] (2) ([3BrBzTPP] + = 1-(3′-bromobenzyltriphenylphosphonium and [3CNBzTPP] + = 1-(3′-cyanobenzyltriphenylphosphonium), were prepared and characterized by elemental analysis, FT-IR, UV-vis spectra, ESI-MS, and single-crystal X-ray diffraction method. Both 1 and 2 crystallize in monoclinic P2(1)/c, and the Co(II) ion of the [Co(NCS) 4 ] 2− anion shows a distorted tetrahedral coordination geometry. The C-H···S hydrogen bonds and p···π interaction found in 1 and 2 consolidate the stacking of the crystal. Magnetic susceptibility measurement in the temperature range 2-300 K shows that 1 and 2 exhibit a weak antiferromagnetic coupling behavior.
ISSN:1553-3174
2470-1556
1553-3182
2470-1564
DOI:10.1080/15533174.2013.797441