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Su J.,Shanxi Normal University | Zheng W.,Shanxi Normal University | Zheng W.,Key Laboratory of Magnetic Molecules and Magnetic Information Material | Yang Y.,Central South University
Journal of Organometallic Chemistry | Year: 2015

Several monomeric alkenyl-substituted pyrazolato gallium dichloride [(3,5-tBu2-N-CHC(SiR1R2R3)pz)GaCl2] 2(a-d) (R1 = R2 = R3 = Me (2a); R1 = R2 = R3 = Et (2b); R1 = R2 = Me, R3 = tBu (2c); R1 = R2 = Me, R3 = Ph (2d); 3,5-tBu2pz = 3,5-di-tert-butylpyrazolato) were synthesized in good yields by the reaction of dinuclear gallium compound [(η1,η1-3,5-tBu2pz)GaCl2]2 (1) and two equivalents of substituted ethynes. Compound 2a was further reduced with potassium-sodium alloy to afford a gallium(II) complex [(η1-tBu2pz-N-CHC(SiMe3))ClGa]2 with Ga-Ga single bond (3a). © 2014 Elsevier B.V. All rights reserved. Source


Liu Q.,Shanxi Normal University | Wu J.,Shanxi Normal University | Li J.,Shanxi Normal University | Wang J.,Shanxi Normal University | And 3 more authors.
Phosphorus, Sulfur and Silicon and the Related Elements | Year: 2014

The reaction of tris(trimethylsilyl)phosphine and a mixture of two different N,N-dimethylalkylamides (1a,b), followed by the treatment with dry hydrazine in situ, resulted in seven asymmetrical 3,5-disubstituted 1H-1,2,4-diazaphospholes (3a-g). Compounds 3a-g are characterized by single crystal X-ray structural analysis. The present protocol provides a general route to this class of molecules without using phosphaalkynes or phosphaalkenes. Copyright © 2014 Taylor & Francis Group, LLC. Source


Wang J.-W.,Shanxi Normal University | Ding L.-Y.,Shanxi Normal University | Wang B.-Q.,Shanxi Normal University | He Y.-Y.,Shanxi Normal University | And 4 more authors.
Journal of Molecular Structure | Year: 2014

A few 1H-1,2,4-diazaphospholes H[3,5-R2dp] (R = methyl (5a), p-tolyl (5b), 1-naphthyl (5c), 2-furanyl (5d), 2-thienyl (5e), and isopropyl (5f)) were prepared and structurally characterized by a substantial experimental modification of the synthetic protocol. The molecules of all compounds are linked into oligomers via the bridges of NHâ"̄N hydrogen bonds in solid state. The tetrameric feature of 5a, and 5d-f represents a new motif of hydrogen-bonded 1H-1,2,4-diazaphospholes in solid state. The DFT calculation at the B3LYP/6-311++G** level suggested the possible proton disorder with intermolecular solid state proton transfer (ISSPT) between 1H-1,2,4-diazaphosphole rings. © 2013 Elsevier B.V. All rights reserved. Source


Zhao M.,Shanxi Normal University | Ma W.,Shanxi Normal University | Liu X.,Shanxi Normal University | Zheng W.,Shanxi Normal University | Zheng W.,Key Laboratory of Magnetic Molecules and Magnetic Information Material
Inorganica Chimica Acta | Year: 2015

Several novel derivatives of bis(N-1,2,4-diazaphosphol-1-yl)methane (bdpm) as well as the first bis(N-1,2,4-diazaphosphol-1-yl)methane metal complexes [Cu(bdpm)2(H2O)2]2+·2ClO4-, [(bdpm)Cu(μ-Cl)Cl]2, and [(bdpm)CoCl2] were prepared and structurally characterized. The complex [Cu(bdpm)2(H2O)2]2+·2ClO4- is with the higher local concentration of low-valent phosphorus(σ2λ3) on the periphery of the molecule. All compounds were characterized using 1H, 13C{1H}, 31P{1H} NMR, IR spectroscopy, and X-ray crystallography. The properties of compounds [Cu(bdpm)2(H2O)2]2+·2ClO4-, [Cu(bdpm)(μ-Cl)Cl], and [Co(bdpm)Cl2] were studied by the EPR spectroscopy and magnetic susceptibility. © 2015 Elsevier B.V. Source


Zhao M.,Shanxi Normal University | Li P.,Shanxi Normal University | Xie X.,Shanxi Normal University | Su J.,Hefei University of Technology | And 2 more authors.
Polyhedron | Year: 2014

Several novel derivatives of mono- and bis(1,2,4-diazaphosphol-1-yl)pyridine (or pyrazine) as well as the first 2,6-bis(1,2,4-diazaphosphol-1-yl)pyridine (bdppy) and 2,6-bis(1,2,4-diazaphosphol-1-yl)pyrazine (bdppz) metal complexes [Zn(bdppy)2]2+·2ClO4 -and [(bdppz)Cu(NCMe)]2+·2ClO4 -were prepared and structurally characterized. The complex [Zn(bdppy)2]2+·2ClO4 -has a higher local concentration of low-valent phosphorus (σ2λ3) on the periphery of the molecule. All the compounds were characterized using 1H, 13C{1H}, 31P{1H} NMR and IR spectroscopy, and X-ray crystallography. The properties of the compound [(bdppz)Cu(NCMe)]2+·2ClO4 -were studied using EPR spectroscopy and magnetic susceptibility measurements. © 2014 Elsevier B.V. All rights reserved. Source

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