Dinuclear Iron(III) and Nickel(II) Complexes Containing N-(2-Pyridylmethyl)-N'-(2-hydroxyethyl)ethylenediamine: Catalytic Oxidation and Magnetic Properties

Ah Rim Jeong; Jong Won Shin; Jong Hwa Jeong; Kwon Hee Bok; Cheal Kim; Donghyun Jeong; Jaeheung Cho; Shinya Hayami; Kil Sik Min

doi:10.1002/chem.201604498

Dinuclear Iron(III) and Nickel(II) Complexes Containing N-(2-Pyridylmethyl)-N'-(2-hydroxyethyl)ethylenediamine: Catalytic Oxidation and Magnetic Properties

Chemistry. 2017 Mar 2;23(13):3023-3033. doi: 10.1002/chem.201604498. Epub 2017 Feb 6.

Authors

Ah Rim Jeong¹, Jong Won Shin¹, Jong Hwa Jeong¹, Kwon Hee Bok², Cheal Kim², Donghyun Jeong³, Jaeheung Cho³, Shinya Hayami⁴, Kil Sik Min⁵

Affiliations

¹ Department of Chemistry, Kyungpook National University, Daegu, 41566, Republic of Korea.
² Department of Fine Chemistry, Seoul National University of Science and Technology, Seoul, 01811, Republic of Korea.
³ Department of Emerging Materials Science, DGIST, Daegu, 42988, Republic of Korea.
⁴ Department of Chemistry, Kumamoto University, Kumamoto, 860-8555, Japan.
⁵ Department of Chemistry Education, Kyungpook National University, Daegu, 41566, Republic of Korea.

PMID: 28054394
DOI: 10.1002/chem.201604498

Abstract

Dinuclear Fe^III and Ni^II complexes, [(phenO)Fe(N₃ )]₂ (NO₃ )₂ (1) and [(phenOH)Ni(N₃ )₂ ]₂ (2), were prepared by treating Fe(NO₃ )₃ ⋅9 H₂ O and Ni(NO₃ )₂ ⋅6 H₂ O in methanol, respectively, with phenOH (=N-(2-pyridylmethyl)-N'-(2-hydroxyethyl)ethylenediamine) and NaN₃ ; both 1 and 2 were characterized by elemental analysis, IR spectroscopy, X-ray diffraction, and magnetic susceptibility measurements. Two ethoxo-bridged Fe^III and two azido-bridged Ni^II were observed in 1 and 2, respectively; corresponding antiferromagnetic interaction via the bridged ethoxo groups and strong ferromagnetic coupling via the bridged end-on azido ligands within the dimeric unit were observed. Complex 1 did not exhibit any catalytic activity, while 2 exhibited excellent catalytic activities for the epoxidation of aliphatic, aromatic, and terminal olefins.

Keywords: catalysis; coordination complexes; crystal structure; magnetic properties; tetradentate ligands.