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Search Results: 1 - 10 of 56627 matches for " Rong-Bin Huang "
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Tetraaquatetrakis{μ3-3,3′-[(E,E)-ethane-1,2-diylbis(nitrilomethylidyne)]benzene-1,2-diolato}octazinc(II) N,N-dimethylformamide hexasolvate
Qin-Juan Xu,Li-Rong Lin,Di Sun,Rong-Bin Huang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809046923
Abstract: The asymmetric unit of the title compound [Zn8(C16H12N2O4)4(H2O)4]·6C3H7NO, consists of eight ZnII cations, four tetravalent anionic ligands, L4 (L4 = 3,3′-(1E,1′E)-(ethane-1,2-diylbis(azan-1-yl-1-ylidene))bis(methan-1-yl-1-ylidene)dibenzene-1,2-bis(olate), four coordinated water molecules and six N,N-dimethylformamide solvate molecules. The coordination complex comprises an octanuclear ZnII unit with its ZnII centers coordinated in two discrete distorted square-pyramidal geometries. Four ZnII atoms each coordinate to two nitrogen atoms and two phenolate oxygen atoms from an individual L4 ligand and one coordinated water molecule. The other four ZnII atoms each bind to five phenolate oxygen atoms from three different L4 ligands. In the crystal structure, the ZnII complex unit, coordinated water molecules and dimethylformamide solvate molecules are linked via O—H...O and C—H...O hydrogen bonds. Molecules are connected by additional intermolecular O—H...O and C—H...O hydrogen bonds, forming an extensive three dimensional framework.
Poly[tris(2,5-dimethylbenzene-1,4-dicarboxylato)bis(pyridine)trizinc(II)]
Fang-Kuo Wang,Shi-Yao Yang,Rong-Bin Huang,Li Nie
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810004848
Abstract: The asymmetric unit of the title polymeric compound, [Zn3(C10H8O4)3(C5H5N)2]n or [Zn3(dmbdc)3(py)2]n (dmbdc = 2,5-dimethylbenzenedicarboxylate; py = pyridine) contains two Zn(II) ions, one of which is located on an inversion centre, one and a half 2,5-dimethylbenzenedicarboxylate ligands and one pyridine ligand. Each ZnO6 octahedron is sandwiched between two ZnO4N square-pyramids, forming a trinuclear zinc secondary building unit (SBU); each SBU is further linked by six 2,5-dimethylbenzenedicarboxylate ligands with six adjacent trinuclear zinc SBU's, forming a two-dimensional layer structure with a (3,6) net. One of the three zinc ions is octahedrally coordinated and the other two are square-pyramidally coordinated. The coordination modes for 2,5-dimethylbenzenedicarboxylates are bis(bidentate) or bidentate-tridentate.
Bis[diamminesilver(I)] 5-nitroisophthalate monohydrate
Di Sun,Geng-Geng Luo,Na Zhang,Rong-Bin Huang
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810007725
Abstract: In the title compound, [Ag(NH3)2]2(C8H3NO6)·H2O, the cations have an almost linear coordination geometry with two ammine ligands and interact with the water molecules [Ag...Owater = 2.725 (4) and 2.985 (4) ]. In the crystal, N—H...O and O—H...O hydrogen bonds, combined with weak (lone pair)...π [O...centroid distance = 3.401 (4) ] and π–π stacking [centroid–centroid distance = 3.975 (3) ] interactions, stabilize the three-dimensional supramolecular network.
Poly[[[aqua(2,2′-bipyridine-κ2N,N′)zinc(II)]-μ-2-nitroterephthalato-κ2O1:O4] monohydrate]
Hui-Min Li,Hong-Bo Yuan,Shi-Yao Yang,Rong-Bin Huang
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810023615
Abstract: In the title compound, {[Zn(C8H3NO6)(C10H8N2)(H2O)]·H2O}n, the ZnII ion is square-pyramidally coordinated, and bridged by 2-nitro-terephthalate ligands, forming a chain running along [1overline{1}0]. Intramolecular hydrogen bonds are formed between the coordinated water molecules and the nitro O atoms. Adjacent chains are linked by hydrogen bonds between the coordinated water molecules and the O atoms of the monodentate carboxyl groups.
3-Chloro-4-hydroxyfuran-2(5H)-one
Na Zhang,Zhen-Yi Wu,Su-Yuan Xie,Rong-Bin Huang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809028724
Abstract: In the title compound, C4H3ClO3, molecules are linked via O—H...O hydrogen bonds into an infinite chain with graph-set motif C(6) along the c axis.
10H-Phenothiazine 5-oxide
Rui-Fang Jin,Kai Yu,Shi-Yao Yang,Rong-Bin Huang
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810047914
Abstract: In the title compound, C12H9NOS, the sulfoxide O atom is disordered over two sites with occupancies of 0.907 (4) and 0.093 (4). The dihedral angle betweeen the two aromatic rings is 18.40 (14)°. Different types of supramolecular interactions including intermolecular N—H...O hydrogen bonds and π–π contacts [centroid–centroid distances = 3.9096 (16) and 4.1423 (16) ] between the aromatic rings of symmetry-related molecules are observed in the crystal structure.
Poly[(μ2-4,4′-bipyridine)bis(μ4-5-tert-butylisophthalato)bis(μ3-5-tert-butylisophthalato)di-μ3-hydroxido-pentazinc(II)]
Dong-Sheng Zhou,Di Sun,Shi-Yao Yang,Rong-Bin Huang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809031365
Abstract: The asymmetric unit of the title compound, [Zn5(C12H12O4)4(OH)2(C10H8N2)]n, consists of three ZnII ions (one of which is located on a twofold rotation axis), two 5-tert-butylisophthalate ligands, one 4,4′-bipyridine ligand and one hydroxide group. The five ZnII ions form a pentanuclear zinc cluster, which is further bridged by ten organic ligands, forming two-dimensional sheets. The central zinc ion of the cluster has site symmetry 2 and is octahedrally coordinated in a N2O4 donor set, whereas the other four zinc atoms are tetrahedrally coordinated by four O atoms. The coordination modes for the 5-tert-butylisophthalates are bis(bidentate) or bidentate-monodentate. Hydrogen bonds are formed between adjacent sheets through the hydroxide groups and the O atoms of the monodentate carboxylate groups. The two tert-butyl groups are disordered over two positions with ratios of 0.64 (2):0.36 (2) and 0.85 (3):0.15 (3).
4H-Cyclopenta[def]phenanthren-4-one
Wen-Sheng Jiang,Di Sun,Su-Yuan Xie,Rong-Bin Huang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809030633
Abstract: In the title compound, C15H8O, the asymmetric unit contains four independent molecules and crystallizes with aromatic π–π stacking interactions[centroid–centroid distances = 3.5326 (18) ].
Benzo[a]fluoren-11-one
Di Sun,Geng-Geng Luo,Su-Yuan Xie,Rong-Bin Huang
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808020989
Abstract: The molecule of the title compound, C17H10O, is nearly planar, the largest deviation from the mean plane being 0.06 . The crystal structure is governed by π–π interactions, with centroid–centroid distances ranging from .559 to 3.730 .
Beating oscillations of magneto-optical spectra in simple hexagonal graphite
Rong-Bin Chen,Yu-Huang Chiu,Ming-Fa Lin
Physics , 2014, DOI: 10.1016/j.cpc.2014.12.007
Abstract: The magneto-optical properties of simple hexagonal graphite exhibit rich beating oscillations, which are dominated by the field strength and photon energy. The former has a strong effect on the intensity, the energy range of the beating and the number of groups, and the latter modulates the total group numbers of the oscillation structures. The single-particle and collective excitations are simultaneously presented in the magnetoreflectance spectra and can be precisely distinguished. For the loss function and reflectance, the beating pattern of the first group displays stronger intensities and broader energy range than other groups. Simple hexagonal graphite possesses unique magneto-optical characteristics that can serve to identify other bulk graphites.
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