Gong-Feng Xu
Nankai University
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Featured researches published by Gong-Feng Xu.
Inorganic Chemistry | 2009
J. J. Xu; Yue Ma; Dai-Zheng Liao; Gong-Feng Xu; Jinkui Tang; Chao Wang; Na Zhou; Shi-Ping Yan; Peng Cheng; Licun Li
Five new complexes based on rare-earth-radical [Ln(hfac)(3)(NIT-5-Br-3py)](2) (Ln = Pr (1), Sm (2), Eu (3), Tb (4), Tm (5); hfac = hexafluoroacetylacetonate; NIT-5-Br-3py = 2-(4,4,5,5-tetramethyl-3-oxylimidazoline-1-oxide)-5-bromo-3-pyridine) have been synthesized and characterized by X-ray crystal diffraction. The single-crystal structures show that these complexes have similar structures, in which a NIT-5-Br-3py molecule acts as a bridging ligand linking two Ln(III) ions through the oxygen atom of the N-O group and nitrogen atom from the pyridine ring to form a four-spin system. Both static and dynamic magnetic properties were measured for complex 4, which exhibits single-molecule magnetism behavior.
Inorganic Chemistry | 2012
Gong-Feng Xu; Patrick Gamez; Jinkui Tang; Rodolphe Clérac; Yun-Nan Guo; Yang Guo
[Dy(III)(HBpz(3))(2)](2+) moieties (HBpz(3)(-) = hydrotris(pyrazolyl)borate) and a 3d transition-metal ion (Fe(III) or Co(III)) have been rationally assembled using an dithiooxalato dianion ligand into 3d-4f [MDy(3)(HBpz(3))(6)(dto)(3)]·4CH(3)CN·2CH(2)Cl(2) (M = Fe (1), Co (2) complexes. Single-crystal X-ray studies reveal that three eight-coordinated Dy(III) centers in a square antiprismatic coordination environment are connecting to a central octahedral trivalent Fe or Co ion forming a propeller-type complex. The dynamics of the magnetization in the two isostructural compounds, modulated by the nature of the central M(III) metal ion, are remarkably different despite their analogous direct current (dc) magnetic properties. The slow relaxation of the magnetization observed for 2 mainly originates from isolated Dy ions, since a diamagnetic Co(III) metal ion links the magnetic Dy(III) ions. In the case of 1, the magnetic interaction between S = 1/2 Fe(III) ion and the three Dy(III) magnetic centers, although weak, generates a complex energy spectrum of magnetic states with low-lying excited states that induce a smaller energy gap than for 2 and thus a faster relaxation of the magnetization.
CrystEngComm | 2009
Yang Guo; Zhan-Quan Liu; Bin Zhao; Yuhua Feng; Gong-Feng Xu; Shi-Ping Yan; Peng Cheng; Qing-Lun Wang; Dai-Zheng Liao
Two new cyanide-bridged heterobimetallic coordination polymers constructed by using the [Au(CN)2]− building block, {Cd(bipy)[Au(CN)2]2}n (1) and {{Cd(phen)[Au(CN)2]2(H2O)}·iPrOH}n (2) (bipy = 2,2′-bipyridine, phen = 1,10-phenanthroline), have been synthesized and characterized. Complex 1 with chiral P3112 space group exhibits a novel three-fold interpenetrating quartz-like 3-D network, which is completely unsupported by aurophilic interactions, while complex 2 with the replacement of bipy by phen shows C2/c space group and features the 1-D zigzag chain structure and an extended supramolecular 2-D array in which aurophilic interactions may play an important role in sustaining the supramolecular solid-state architectures. 1 and 2 feature various networks most likely due to the different steric hindrances of the bipy and phen ligands. In addition, the solid state photoluminescence spectrum of complex 2 exhibits a strong green emission band (λmax = 524 nm) at room temperature.
Australian Journal of Chemistry | 2006
Gong-Feng Xu; Zhan-Quan Liu; Hui-Bo Zhou; Yang Guo; Dai-Zheng Liao
Two new supramolecular polymeric coordination complexes, {Zn(phen)2[Au2(CN)4](H2O)}·1.5H2O 1 and {Mn(phen)[Au2(CN)4](H2O)}·PriOH 2, have been obtained through a self-assembly process. The three-dimensional supramolecular architectures of compounds 1 and 2 are sustained by aurophilic, hydrogen-bonding, and/or π–π interactions. Gold atoms linked with aurophilic bonds arrange in a pattern not frequently observed.
Inorganic Chemistry | 2007
Yan Ouyang; Wei Zhang; Na Xu; Gong-Feng Xu; Dai-Zheng Liao; Kazuyoshi Yoshimura; Shi-Ping Yan; Peng Cheng
Inorganic Chemistry Communications | 2008
J. J. Xu; Yue Ma; Gong-Feng Xu; Chao Wang; Dai-Zheng Liao; Zong-Hui Jiang; Shi-Ping Yan; Licun Li
Inorganica Chimica Acta | 2007
Ming Hu; Qing-Lun Wang; Gong-Feng Xu; Gui-Ru Deng; Guang-Ming Yang; Ming Yu; Yan-Hong Zhang
Inorganic Chemistry Communications | 2007
Ming Hu; Qing-Lun Wang; Gong-Feng Xu; Bin Zhao; Gui-Ru Deng; Yan-Hong Zhang; Guang-Ming Yang
Chemical Communications | 2012
Jing-Yuan Xu; Hai-Bin Song; Gong-Feng Xu; Xin Qiao; Shi-Ping Yan; Dai-Zheng Liao; Yves Journaux; Joan Cano
Inorganic Chemistry Communications | 2008
Yuhua Feng; Chao Wang; Gong-Feng Xu; Yan Ouyang; Dai-Zheng Liao; Shi-Ping Yan