Citation: MA De-Yun, XIAO Jun-Xia, GUO Hai-Fu, LIANG Yun-Qiu, YAN Jing-Jing, LIN Wei-Jie, DING Wan-Qiu. Magnetic Properties in Mononuclear Gadolinium(III) and Terbium(III) Complexes Based on Ethoxylphenyl-substituted Nitronyl Nitroxide Radical and Hexafluoroacetylacetonate Ligand[J]. Chinese Journal of Structural Chemistry, ;2016, 35(3): 361-370. doi: 10.14102/j.cnki.0254-5861.2011-0885 shu

Magnetic Properties in Mononuclear Gadolinium(III) and Terbium(III) Complexes Based on Ethoxylphenyl-substituted Nitronyl Nitroxide Radical and Hexafluoroacetylacetonate Ligand

1.
School of Chemistry and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China

Corresponding author: MA De-Yun,
Received Date: 9 July 2015
Available Online: 11 November 2015
Fund Project: the Natural Science Foundation of Guangdong Province (2015A030310407) (pdjh2015a0562) the Natural Science Foundation of Zhaoqing University (201532) (2015A030310407)the Project of Provincial Key Platform of Guangdong Province (2014KTSPT040) (201532)

Two new lanthanide complexes with ethoxybenzene-substituted nitronyl nitroxide radical (NIT-C₈H₉O) and hexafluoroacetylacetonate (hfac) ligand, [Gd(NIT-C₈H₉O)₂(hfac)₃]·C₇H₁₆ (1) and [Tb(NIT-C₈H₉O)₂(hfac)₃]·C₇H₁₆ (2), have been successfully synthesized and characterized by IR spectroscopy, elemental analyses, thermogravimetry analyses, and single-crystal X-ray diffraction. Both 1 and 2 exhibit a mononuclear structure in which the nitronyl nitroxide radical and hfac ligand act as monodentate and bidentate chelating modes, respectively. Magnetic studies show that ferromagnetic interactions (between intramolecular Gd and radical) and antiferromagnetic interactions (between the intramolecular radicals) coexist in complex 1. No obvious frequency dependent out-of-phase signals were observed in complex 2.
- lanthanide complexes,
- characterization,
- radicals,
- magnetism
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