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Search Results: 1 - 10 of 46231 matches for " Cai-Feng Bi "
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1-[(Z)-(5-Methyl-2-pyridyl)iminiomethyl]-2-naphtholate
Xin-Yu Liu,Yu-Hua Fan,Qiang Wang,Cai-Feng Bi
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810000346
Abstract: In the zwitterionic title compound, C17H14N2O, the dihedral angle between the naphthalene and pyridine ring systems is 3.56 (9)° and an intramolecular N—H...O hydrogen bond generates an S(6) ring. In the crystal, molecules are linked by C—H...O interactions.
Dichlorido{N-[1-(2-pyridyl)ethylidene]ethane-1,2-diamine}copper(II)
Qiang Wang,Cai-Feng Bi,Da-Qi Wang,Yu-Hua Fan
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809010149
Abstract: The title complex, [CuCl2(C9H13N3)], is mononuclear and contains a five-coordinate CuII atom. The geometry of the CuII atom can be described as tetragonal-pyramidal derived from the calculation of the value τ = 0.102. The three N atoms of the pyridine and ethane-1,2-diamine ligands and one Cl atom belong to the basal plane and the other Cl atom represents the axial position of the pyramid. The Cu atom is displaced by 0.2599 (2) from the basal plane towards the axial Cl atom. In the crystal, molecules are linked into chains by intermolecular N—H...Cl and C—H...Cl hydrogen bonds.
2-[(1,3-Benzothiazol-2-yl)iminomethyl]phenol
Si-Quan Liu,Cai-Feng Bi,Liang-Yu Chen,Yu-Hua Fan
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809007934
Abstract: The title compound, C14H10N2OS, is nearly planar, with a maximum deviation of 0.0698 (13) from the mean plane, and exists in an E configuration with respect to the C=N bond. The dihedral angle between the two benzene rings is 2.81 (9)°. There is an intramolecular O—H...N hydrogen bond and intermolecular C—H...O and C—H...N hydrogen bonds.
Poly[tris(μ3-5-aminoisophthalato)diaquadicerium(III)]
Hui-Jie Ma,Yu-Hua Fan,Qiang Wang,Cai-Feng Bi
Acta Crystallographica Section E , 2008, DOI: 10.1107/s160053680803033x
Abstract: In the title complex, [Ce2(C8H5NO4)3(H2O)2]n, each Ce ion is in nine-coordinated environment. Eight O atoms from six ligands participate in coordination, in addition to one O atom from a water molecule. Both carboxylate groups from the ligands chelate the Ce atoms, forming two four-membered rings. The 5-aminoisophthalate ligands also bridge the Ce centers, forming a two-dimensional network, and O—H...O and N—H...O hydrogen bonds complete the structure.
(E)-3-(2-Hydroxy-5-methylphenylimino)indolin-2-one
Peng-Fei Zhang,Cai-Feng Bi,Qiang Wang,Jian Zuo
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811034015
Abstract: In the title compound, C15H12N2O2, the dihedral angle between the two benzene rings is 83.55 (11)° In the crystal, the molecules are linked by O—H...O and N—H...O hydrogen bonds.
2-Methoxy-6-[(Z)-[(5-methyl-2-pyridyl)iminomethyl]phenol
Xin-Yu Liu,Yu-Hua Fan,Cai-Feng Bi,Qiang Wang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809031699
Abstract: The title compound, C14H14N2O2, was obtained by a condensation reaction between o-vanillin and 5-methylpyridin-2-amine. In the molecule, the dihedral angle between the pyridine and benzene rings is 9.08 (13)°. An intramolecular hydrogen bond involving the imine N atom and the hydroxyl group may influence the conformation of the molecule. The crystal structure is stabilized by weak C—H...O hydrogen bonds.
1,5-Dimethyl-2-phenyl-4-{[(E)-3,4,5-trimethoxybenzylidene]amino}-1H-pyrazol-3(2H)-one
Shan-Bin Liu,Cai-Feng Bi,Yu-Hua Fan,Xia Zhang
Acta Crystallographica Section E , 2010, DOI: 10.1107/s160053681002934x
Abstract: In the title compound, C21H23N3O4, the pyrazole ring forms dihedral angles of 21.58 (8) and 66.64 (7)° with the benzene and phenyl rings, respectively. The crystal structure is stabilized by weak intermolecular C—H...O hydrogen bonds.
4-[(E)-(2-Methoxyphenyl)iminomethyl]-N,N-dimethylaniline
Shan-Bin Liu,Cai-Feng Bi,Qiang Wang,Jian Zuo
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810017228
Abstract: In the title compound, C16H18N2O, the dihedral angle between the benzene rings is 38.5 (2)°. The crystal packing is stabilized by weak C—H...N and C—H...O interactions and aromatic π–π stacking [centroid–centroid separations = 3.620 (5) and 3.546 (4) ].
Tetra-μ-acetato-κ8O:O′-bis{[2-(2-furyl)-1-(2-furylmethyl)-1H-benzimidazole-κN3]copper(II)}
Qiang Wang,Cai-Feng Bi,Da-Qi Wang,Yu-Hua Fan
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809025276
Abstract: The title complex, [Cu2(CH3COO)4(C16H12N2O2)2], forms a dimer of the paddle-wheel type located on a crystallographic inversion centre. The two CuII atoms [Cu...Cu = 2.7254 (11) ] are bridged by four acetate anions. The geometry of the polyhedron around the metal centre can be described as tetragonal-pyramidal derived from the calculation of the value τ = 0.0018. The apical positions of the tetragonal-pyramidal copper coordination polyhedra are occupied by the N atoms of 2-(2-furyl)-1-(2-furylmethyl)-1H-benzimidazole ligands. In the crystal structure, molecules are linked into a chain by intermolecular C—H...O hydrogen bonds parallel to [010]. Two furan rings are disordered over two positions in ratios of 0.55:0.45 and 0.69:0.31.
Discussion on Teaching Method of Organizational Behavior under Constructivism Teaching Theory
Cai-feng LI
Cross-Cultural Communication , 2009, DOI: 10.3968/753
Abstract: The article discussed suitable teaching method of organizational behavior under constructivism teaching theory, which combined with course characteristic and teaching practice. The teacher sets up the study optimum environment, promote students to take use of interactive study model and encourage students think in order to achieve knowledge meaning construction under happy environment of teaching and studying. Key words: constructivism; organizational behavior; teaching theory; teaching method Résumé: L'article a examiné la méthode de l'enseignement adaptée de comportements organisationnels sous la théorique de l’enseignement de constructivisme, qui combine les caractéristiques de cours et la pratique pédagogique. L'enseignant met en place le meilleur environnement d'études, incite les étudiants à prendre le modèle d'étude interactif et les encourage de réfléchir en vue de parvenir à la construction de connaissance et de sens dans un environnement d'enseignement et d'études heureux. Mots-clés: le constructivisme; les comportements organisationnels; la théorique de l’enseignement; la méthode d'enseignement 摘 要:本文從“組織行為學”學科特性出發,結合教學實踐,引入了建構主義教學理念,探討了適宜的教學方法。旨在教師設置適當的學習情景,採用互動、協作的學習方式,鼓勵學生探索、思考,在寓教於樂、寓學于樂的環境中,幫助學生實現知識的意義構建。 關鍵詞:建構主義;組織行為學;教學理念;教學方法
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