Synthesis and characterization of cobalt complexes with radical anionic α-diimine ligands

Xiao Juan Yang; Xiaohui Fan; Yanxia Zhao; Xuting Wang; Bin Liu; Ji Hu Su; Qingsong Dong; Maolin Xu; Biao Wu

doi:10.1021/om4003686

Synthesis and characterization of cobalt complexes with radical anionic α-diimine ligands

Xiao Juan Yang^*, Xiaohui Fan, Yanxia Zhao, Xuting Wang, Bin Liu, Ji Hu Su, Qingsong Dong, Maolin Xu, Biao Wu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Three cobalt complexes, [LCo(μ-Cl)]₂·THF· Et₂O (1), [LCo(η⁶-toluene)] (2), and [LCo]₂ (3), where L = [(2,6-iPr₂C₆H₃)NC(Me)] ₂, have been synthesized from reduction of the dichloro cobalt precursor [LCoCl₂] by sodium or potassium metal. Single-crystal X-ray diffraction analyses reveal that the complexes display novel structures with the singly reduced form (L^•-) of the α-diimine ligand: the dichloro-bridged binuclear complex 1, the mononuclear 2 with an η⁶-coordinated toluene molecule, and the dimer 3 through Co-aryl interactions of two [LCo] units. The compounds were further characterized by EPR and magnetic studies.

Original language	English
Pages (from-to)	6945-6949
Number of pages	5
Journal	Organometallics
Volume	32
Issue number	23
DOIs	https://doi.org/10.1021/om4003686
Publication status	Published - 9 Dec 2013
Externally published	Yes

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title = "Synthesis and characterization of cobalt complexes with radical anionic α-diimine ligands",

abstract = "Three cobalt complexes, [LCo(μ-Cl)]2·THF· Et2O (1), [LCo(η6-toluene)] (2), and [LCo]2 (3), where L = [(2,6-iPr2C6H3)NC(Me)] 2, have been synthesized from reduction of the dichloro cobalt precursor [LCoCl2] by sodium or potassium metal. Single-crystal X-ray diffraction analyses reveal that the complexes display novel structures with the singly reduced form (L•-) of the α-diimine ligand: the dichloro-bridged binuclear complex 1, the mononuclear 2 with an η6-coordinated toluene molecule, and the dimer 3 through Co-aryl interactions of two [LCo] units. The compounds were further characterized by EPR and magnetic studies.",

author = "Yang, {Xiao Juan} and Xiaohui Fan and Yanxia Zhao and Xuting Wang and Bin Liu and Su, {Ji Hu} and Qingsong Dong and Maolin Xu and Biao Wu",

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volume = "32",

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journal = "Organometallics",

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TY - JOUR

T1 - Synthesis and characterization of cobalt complexes with radical anionic α-diimine ligands

AU - Yang, Xiao Juan

AU - Fan, Xiaohui

AU - Zhao, Yanxia

AU - Wang, Xuting

AU - Liu, Bin

AU - Su, Ji Hu

AU - Dong, Qingsong

AU - Xu, Maolin

AU - Wu, Biao

PY - 2013/12/9

Y1 - 2013/12/9

N2 - Three cobalt complexes, [LCo(μ-Cl)]2·THF· Et2O (1), [LCo(η6-toluene)] (2), and [LCo]2 (3), where L = [(2,6-iPr2C6H3)NC(Me)] 2, have been synthesized from reduction of the dichloro cobalt precursor [LCoCl2] by sodium or potassium metal. Single-crystal X-ray diffraction analyses reveal that the complexes display novel structures with the singly reduced form (L•-) of the α-diimine ligand: the dichloro-bridged binuclear complex 1, the mononuclear 2 with an η6-coordinated toluene molecule, and the dimer 3 through Co-aryl interactions of two [LCo] units. The compounds were further characterized by EPR and magnetic studies.

AB - Three cobalt complexes, [LCo(μ-Cl)]2·THF· Et2O (1), [LCo(η6-toluene)] (2), and [LCo]2 (3), where L = [(2,6-iPr2C6H3)NC(Me)] 2, have been synthesized from reduction of the dichloro cobalt precursor [LCoCl2] by sodium or potassium metal. Single-crystal X-ray diffraction analyses reveal that the complexes display novel structures with the singly reduced form (L•-) of the α-diimine ligand: the dichloro-bridged binuclear complex 1, the mononuclear 2 with an η6-coordinated toluene molecule, and the dimer 3 through Co-aryl interactions of two [LCo] units. The compounds were further characterized by EPR and magnetic studies.

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U2 - 10.1021/om4003686

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SP - 6945

EP - 6949

JO - Organometallics

JF - Organometallics

IS - 23

ER -

Synthesis and characterization of cobalt complexes with radical anionic α-diimine ligands

Abstract

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