Publications by authors named "Zhi-Han Chang"

Nitrofurans are important synthetic broad-spectrum antibacterial drugs with the basic structure of 5-nitrofuran. Due to their toxicity, it is essential to develop a sensitive sensor with strong anti-interference capabilities for their detection. In this work, two {PMoO}-based compounds, [H(HPTTP)]{Cu[MoO(OH)(PO)(HPO)(HPO)]}·HO ( = 13 for (), 7 for (); HPTTP = 4,4',4″,4‴-(1-pyrrole-2,3,4,5-tetrayl)tetrapyridine), exhibiting similar coordination but distinct stacking modes.

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Electrochemical performances can be effectively improved by introducing metal-organic units (MOUs) into polyoxometalates (POMs). However, regulating the bonding strength between POMs and MOUs at the molecular level to improve the electrochemical performance is a challenging task. Three new POM-based metal-organic complexes (MOCs), namely H{Zn(Hpytty)(HO)[CrMo(OH)O]}·2HO (1), H{Zn(Hpyttz)(HO)[CrMo(OH)O]}·8HO (2), and {(μ-OH)Zn(pyttz)(HO)[TeMoO]}·2HO (3) (Hpytty = 3-(pyrazin-2-yl)-5-(1-1,2,4-triazol-3-yl)-1,2,4-triazolyl, Hpyttz = 3-(pyrid-2-yl)-5-(1-1,2,4-triazol-3-yl)-1,2,4-triazolyl), were obtained.

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Two new Keggin-type polyoxometalate (POM)-based metal-organic complexes (MOCs) H3[Cu2(4-dpye)2(PMo12O40)] (1) and H[Cu2(4-Hdpye)2(PMo12O40)(H2O)4]·2H2O (2) were constructed with a new N,N'-bis (4-pyrimidinecarboxamido)-1,2-ethane (4-H2dpye) ligand by the hydrothermal/solvothermal method. Complex 1 was a 2D layered structure constructed from 1D metal-organic chains [Cu(4-dpye)]n and Keggin-type [PMo12O40]3- polyoxoanions. Complex 2 displays a 3D supramolecular framework formed by discrete [PMo12O40]3- polyoxoanions and binuclear metal-organic loops [Cu2(4-Hdpye)2].

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In this work, a new α-γ-type [MoO] anion was first synthesized and characterized by single-crystal X-ray diffraction analysis and was obtained by introducing molybdate to the synthesis of metal-organic complex (MOC) under hydrothermal conditions. An octamolybdate-based MOC, namely, {[Cu(HO)](dpyh)(α-γ-MoO) }·(β-MoO)·8.5HO (Hdpyh = ,-bis(3-pyrazolamide)-1,2-hexahydrobenzene), was obtained.

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