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Synthesis and Crystal Structure of a Co(II) Complex with Schiff Base and Imidazole Ligand 被引量:1
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作者 WU Lian-Bin HU Zi-Qiang LAI Guo-Qiao 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2006年第5期567-571,共5页
The title compound, [Co(C3H4N2)2(C22H18N2O4)]·5H2O (Mr = 659.56), has been prepared and its crystal structure was determined by X-ray diffraction method. The crystal belongs to monoclinic, space group P21/n... The title compound, [Co(C3H4N2)2(C22H18N2O4)]·5H2O (Mr = 659.56), has been prepared and its crystal structure was determined by X-ray diffraction method. The crystal belongs to monoclinic, space group P21/n, a = 9.6808(2), b = 26.7204(5), c = 12.7993(3) A, β = 100.9340(10)°, V= 3250.75(12) A^3, Z = 4, Dc = 1.348 g/cm^3,μ = 0.586 mm^-1, F(000) = 1380, S = 1.131, R = 0.0689 and wR = 0.1883 for 4782 observed reflections (Ⅰ 〉 2σ(Ⅰ)). The title crystal consists of Co(Ⅱ) complex and lattice water molecules. The Co(Ⅱ) complex assumes a distorted octahedral coordination geometry, formed by one Schiff base dianion phenylenediamine-3-methoxysali-cylaldehyde and two imidazole ligands. The π-π stacking interaction occurs between nearly parallel benzene rings of the neighboring complexes. 展开更多
关键词 cobalt(Ⅱ) complex Schiff base crystal structure π-π stacking
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Spin-1/2 relativistic particle in a magnetic field in NC phase space
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作者 袁毅 李康 +1 位作者 王剑华 陈驰一 《Chinese Physics C》 SCIE CAS CSCD 2010年第5期543-547,共5页
This work provides an accurate study of the spin-l/2 relativistic particle in a magnetic field in NC phase space. By detailed calculation we find that the Dirac equation of the relativistic particle in a magnetic fiel... This work provides an accurate study of the spin-l/2 relativistic particle in a magnetic field in NC phase space. By detailed calculation we find that the Dirac equation of the relativistic particle in a magnetic field in noncommutative space has similar behaviour to what happens in the Landau problem in commutative space even if an exact map does not exist. By solving the Dirac equation in NC phase space, we not only obtain the energy level of the spin-1/2 relativistic particle in a magnetic field in NC phase space but also explicitly offer some additional terms related to the momentum-momentum non-commutativity. 展开更多
关键词 NC phase space Landau problem Dirac equation
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