Xinxiang Municipal Key Laboratory of Functional Organic Molecular

Xinxiang, China

Xinxiang Municipal Key Laboratory of Functional Organic Molecular

Xinxiang, China

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Lou H.-H.,Henan Institute of Science and Technology | Lou H.-H.,Xinxiang Municipal Key Laboratory of Functional Organic Molecular | Lou T.-J.,Henan Institute of Science and Technology | Lou T.-J.,Xinxiang Municipal Key Laboratory of Functional Organic Molecular | And 5 more authors.
Rengong Jingti Xuebao/Journal of Synthetic Crystals | Year: 2014

One-dimensional ZnO nanowires were synthesized from Zn(Ac)2·2H2O as precursor in strong alkaline condition. SEM results showed that the size, shape and aspect ratio of synthesized nanowires are uniformed; PbS nanocrystallines were prepared by hot injection morphology, using oleylamine as the single solvent. Then PbS nanocrystallines sensitized ZnO nanowire solar cells were assembled; PbS/CdS co-sensitized ZnO solar cells were built to improve the photoelectric conversion efficiency. Photocurrent density-photovoltage (J-V) curves and the Nyquist dots were tested. The results showed that the performance of PbS/CdS nanocrystallines co-sensitized ZnO nanowires solar cells are better than that of the pure PbS nanocrystallines sensitized ZnO nanowire solar cells.


Li C.-G.,Henan Institute of Science and Technology | Li Y.-F.,Henan Institute of Science and Technology | Shang J.-Y.,Henan Institute of Science and Technology | Lou T.-J.,Xinxiang Municipal Key Laboratory of Functional Organic Molecular
Transition Metal Chemistry | Year: 2014

Carbonyl substitution reactions of [μ-(SCH2) 2CHC6H5]Fe2(CO)6 with bidentate phosphine ligands, cis-1,2-bis(diphenylphosphine)ethylene (cis-dppv) and N,N-bis(diphenylphosphine)propylamine [(Ph2P)2N-Pr-n], yielded an asymmetrically substituted chelated complex [(μ-SCH 2)2CHC6H5]Fe2(CO) 4(k 2-dppv) and a symmetrically substituted bridging complex [(μ-SCH2)2CHC6H5]Fe 2(CO)4[μ-(PPh2)2N-Pr-n] under different reaction conditions. Both complexes were fully characterized by spectroscopic methods and by X-ray crystallography. Their electrochemical behaviors were observed by cyclic voltammetry, and the catalytic electrochemical reduction of protons from acetic or trifluoroacetic acid to give dihydrogen mediated by complex [(μ-SCH2)2CHC6H 5]Fe2(CO)4(k 2-dppv) was investigated. © 2014 Springer International Publishing Switzerland.


Li C.-G.,Henan Institute of Science and Technology | Xue F.,Henan Institute of Science and Technology | Cui M.-J.,Henan Institute of Science and Technology | Shang J.-Y.,Henan Institute of Science and Technology | Lou T.-J.,Xinxiang Municipal Key Laboratory of Functional Organic Molecular
Transition Metal Chemistry | Year: 2015

Reaction of the diiron propanedithiolate complex [μ-(SCH2)2CHC6H5]Fe2(CO)6 (A) with 1,1′ -bis(diphenylphosphino) ferrocene (dppf) in refluxing xylene yielded an intramolecular bridged complex [(μ-SCH2)2CHC6H5] Fe2(CO)4(μ-dppf) (1), while in MeCN in the presence of Me3NO·2H2O gave an intermolecular bridged complex [(μ- SCH2)2CHC6H5Fe2(CO)5]2(μ,κ1,κ1-dppf) (2). The structures of both complexes were fully characterized by spectroscopic methods and X-ray crystallography. In the solid state, the diphosphine spans the iron-iron vector, adopting cis basal- basal arrangement as expected in intramolecular bridged complex 1, while the diphosphine connects the two [2Fe2S] clusters by coordinating one of the two Fe atoms of each [2Fe2S] cluster in intermolecular bridged complex 2. The Fe- Fe bond length of 2.63A˚ in 1 is longer than that in 2, among the longest of Fe-Fe bonds in the synthetic active sites of Fe- Fe hydrogenases. Electrochemical investigation showed that complex 1 catalyzed the reduction of protons to give dihydrogen in the presence of HBF4, but did not catalyze the oxidation of dihydrogen in the presence of pyridine. © Springer International Publishing 2014.


Li C.-G.,Henan Institute of Science and Technology | Zhang G.-F.,Henan Institute of Science and Technology | Zhu Y.,Henan Institute of Science and Technology | Xue F.,Henan Institute of Science and Technology | And 3 more authors.
Transition Metal Chemistry | Year: 2015

Abstract Reaction of 2-phenyl-1,3-dibromopropane with in situ generated (μ-SLi)2Fe2(CO)6 yielded a known complex [(μ-SCH2)2CHC6H5]Fe2(CO)6 (A). Displacement of two carbonyls from complex A by cis-1,2-bis(diphenylphosphine)ethylene (dppv) or 1,2-bis(diphenylphosphine)ethane (dppe) in the presence of Me3NO·2H2O gave two chelate complexes [(μ-SCH2)2CHC6H5]Fe2(CO)4(κ 2-dppv), [A(κ 2-dppv)] and [(μ-SCH2)2CHC6H5]Fe2(CO)4(κ 2-dppe), [A(κ 2-dppe)], respectively. Protonation of the diiron centers of [A(κ 2-dppv)] and [A(κ 2-dppe)] using an excess of HBF4·Et2O in dichloromethane at room temperature gave the bridging hydrides [(μ-H)A(κ 2-dppv)]BF4 and [(μ-H)A(κ 2-dppe)]BF4. The complexes [(μ-H)A(κ 2-dppv)]BF4, [A(κ 2-dppe)] and [(μ-H)A(κ 2-dppe)]BF4 were characterized by elemental analysis and spectroscopic methods, and [(μ-H)A(κ 2-dppv)]BF4 and [(μ-H)A(κ 2-dppe)]BF4 were also characterized by X-ray crystallography. The electrochemical behavior of [(μ-H)A(κ 2-dppv)]BF4 was investigated by cyclic voltammetry, and the catalytic electrochemical reduction in protons from trifluoroacetic acid or p-methylbenzene sulfonic acid to give hydrogen was investigated. © 2015 Springer International Publishing Switzerland.


Li C.-G.,Henan Institute of Science and Technology | Zhu Y.,Henan Institute of Science and Technology | Jiao X.-X.,Xinxiang Municipal Key Laboratory of Functional Organic Molecular | Fu X.-Q.,Xinxiang Municipal Key Laboratory of Functional Organic Molecular
Polyhedron | Year: 2014

A dinuclear [2Fe2S] mimic, [μ-(SCH2)2CHC 6H5]Fe2(CO)6 (1), of the active site of FeFe-hydrogenases has been synthesized from the reaction of 2-phenyl-1,3-propanedithiol with Fe3(CO)12. Displacement one or two carbonyls of complex 1 with triphenylphosphine (PPh3) or bis(diphenylphosphino)methane (dppm) yielded [μ-(SCH2) 2CHC6H5]Fe2(CO)5(PPh 3) (2), [μ-(SCH2)2CHC6H 5]Fe2(CO)5(κ-dppm) (3) and [μ-(SCH2)2CHC6H5]Fe 2(CO)4(μ-dppm) (4). Complexes 1-4 have been fully characterized by elemental analysis, mass spectrometry, IR, 1H, 13C and 31P NMR spectroscopic techniques, and unequivocally determined by single crystal X-ray diffraction analysis. The phenyl groups are attached directly to the bridgehead-C atoms of the propanedithiolate bridge via equatorial bonds in chair conformation six-membered rings. The electrochemical behavior of 1-4 and the reduction of the proton of CF3COOH to hydrogen, catalyzed by 1 and 3, were investigated by cyclic voltammetry. © 2013 Elsevier Ltd. All rights reserved.

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