Publications (10)32.82 Total impact
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Article: Synthesis, Structure, and Magnetic Properties of Three Chiral Sodium‐Centered Polynuclear Copper(II) Clusters with L‐Alanine
Berichte der deutschen chemischen Gesellschaft 01/2008; 2008(7):1141 - 1146. · 2.94 Impact Factor -
Article: Syntheses, structures, and properties of high-nuclear 3d-4f clusters with amino acid as ligand: {Gd6Cu24}, {Tb6Cu26}, and {(Ln6Cu24)2Cu} (Ln = Sm, Gd).
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ABSTRACT: Four novel high-nuclear 3d-4f heterometallic clusters were obtained through the self-assembly of Ln(III), Cu(II), and amino acid ligands (2-methylalanine (mAla), glycine (Gly), and L-proline (Pro), respectively). The metal skeleton of cluster 1, [Gd6Cu24(mu3-OH)30(mAla)16(ClO4)(H2O)22].(ClO4)17.(OH)2.(H2O)2(0), may be described as a huge {Gd6Cu12} octahedron connected with 12 additional Cu(II) ions. The structure of cluster 2, Na4[Tb6Cu26(mu3-OH)30(Gly)18(ClO4)(H2O)22].(ClO4)25.(H2O)42, may be described as a {Tb6Cu24} main structure connected with two [Cu(Gly)(H2O)2]+ groups. Compounds {[Ln6Cu24(mu3-OH)30(Pro)12(Ac)6(ClO4)(H2O)13]2Cu(Pro)2}.(ClO4)18.(OH)16.(H2O)55 (Ln= Sm (3), Gd (4)) are 61-nuclear clusters, which represent the largest known 3d-4f clusters so far, the structure can be described as two {Ln6Cu24} octahedral units connected by a trans-Cu(proline)2 bridge. The electrical conductivity measurements reveal that they are temperature-sensitive semiconductors. The magnetic susceptibility measurements display that compound 4 is ferromagnetic.Inorganic Chemistry 10/2006; 45(18):7173-81. · 4.60 Impact Factor -
Article: A New Spherical Metallacryptate Compound [Na{Cu6(Thr)8(H2O)2(ClO4)4}]·ClO4·5 H2O: Magnetic Properties and DFT Calculations
Berichte der deutschen chemischen Gesellschaft 05/2005; 2005(13):2706 - 2713. · 2.94 Impact Factor -
Article: Two 3D supramolecular polymers constructed from an amino acid and a high-nuclear Ln6Cu24 cluster node.
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ABSTRACT: The first successful attempt to construct 3D supramolecular frameworks with high-nuclear 3d-4f heterometallic clusters as a node is reported. The self-assembly of Ln3+, Cu2+ and amino acid in solution leads to the formation of two polymers, 35-nuclear complex [Sm6Cu29] 1 with a primitive cubic net-like structure and 36-nuclear complex [Nd6Cu30] 2 with a face-centred cubic network type structure. Glycine and L-proline, respectively, were used as ligands. It should be noted that 2 has a chiral framework. X-ray structure analyses show that 1 crystallizes in the triclinic P1 space group (a=19.6451(8), b=20.4682(8), c=20.7046(8) A, alpha=89.453(1), beta=66.290(1), gamma=68.572(1) degrees, V=7003.0(5) A3 and Z=1) and 2 belongs to the cubic P2(1)3 space group (a=b=c=32.4341(3) A, V=34 119.7(5) A3 and Z=4). Both complexes utilize Ln6Cu24 octahedral clusters as nodes and trans-Cu(amino acid)2 groups as bridges. Electrical conductivity measurements reveal that both polymers behave as semiconductors.Chemistry 09/2004; 10(16):3963-9. · 5.93 Impact Factor -
Article: Syntheses and characterizations of a series of novel Ln6Cu24 clusters with amino acids as ligands.
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ABSTRACT: With glycine or L-alanine as ligands, a series of novel 3d-4f heterometallic Ln(6)Cu(24) clusters with the formulas of [Sm(6)Cu(24)(mu(3)-OH)(30)(Gly)(12)(Ac)(12)(ClO(4))(H(2)O)(16)].(ClO(4))(9).(OH)(2).(H(2)O)(31) (1) and [Ln(6)Cu(24)(mu(3)-OH)(30)(Ala)(12)(Ac)(6)(ClO(4))(H(2)O)(12)].(ClO(4))(10).(OH)(7).(H(2)O)(34) (2.Ln) (Ln = Tb, Gd, Sm, and La) were synthesized by self-assembly, among which 1 and 2.Tb were characterized by X-ray structure analysis. The metal skeleton of the clusters may be described as a huge [Ln(6)Cu(12)] octahedron (constructed with 6 Ln(III) ions located at the vertices and 12 inner Cu(II) ions located at the midpoints of the edges) connected by 12 additional Cu(II) ions (every 2 are connected to 1 Ln(III) vertex). The temperature dependence of the magnetic susceptibilities of 2.Ln was investigated and was found to vary with the central rare-earth ions. Impedance spectroscopic measurements of 2.Ln reveal that they are ionic conductors.Inorganic Chemistry 09/2004; 43(17):5472-8. · 4.60 Impact Factor -
Article: Crystal Engineering of the Coordination Architecture of Metal Polycarboxylate Complexes by Hydrothermal Synthesis: Assembly and Characterization of Four Novel Cadmium Polycarboxylate Coordination Polymers Based on Mixed Ligands
Berichte der deutschen chemischen Gesellschaft 03/2004; 2004(10):2096 - 2106. · 2.94 Impact Factor -
Article: Three Novel Polymeric Frameworks Assembled from CdII, CoII, and MnII with the Mixed Organic Ligands 3,4‐Pyridinedicarboxylate, 1,3‐Bis(4‐pyridyl)propane, or 1,2‐Bis(4‐pyridyl)ethane
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ABSTRACT: Hydrothermal reactions of CdII, CoII, and MnII with the mixed ligands 3,4-pyridinedicarboxylate (pydc), 1,3-bis(4-pyridyl)propane (bpp), or 1,2-bis(4-pyridyl)ethane (bpe) gave crystals of {[Cd(pydc)(bpp)]·0.5H2O}n (1), {[Co(pydc)(H2O)(bpe)0.5]·0.5H2O}n (2), and {[Mn(pydc)(H2O)(bpe)0.5]· 0.5H2O}n (3), respectively. Single-crystal X-ray analyses reveal that these are all three-dimensional non-interpenetrating coordination polymers. Their structures alter markedly with the conformation and the function of the ligands. In 1, the 3,4-pyridinedicarboxylate acted as a three-connector, a coordination topology of the type (3,5) [containing 3 and 5 connected centers] being generated through self-assembly, while in 2 and 3, with the help of the four-connector 3,4-pyridinedicarboxylate and the terminal ligand water molecule, another three-dimensional framework with a coordination topology of the type (4, 5) was obtained. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)Berichte der deutschen chemischen Gesellschaft 07/2003; 2003(14):2670 - 2677. · 2.94 Impact Factor -
Article: Synthesis and characterization of a series of novel heptanuclear trigonal-prismatic polyhedra with different edge-ligands.
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ABSTRACT: Five novel heptanuclear trigonal-prismatic polyhedra, Na4[PrNi6(Gly)9(mu 3-OH)3(H2O)6].(ClO4)7 (1), Na2[PrNi6(Gly)8(mu 3-OH)3(mu 2-OH2)-(H2O)6].(ClO4)6.(H2O)2 (2), Na[DyNi6(Gly)7(mu 3-OH)3(mu 2-OH2)2(H2O)6].(ClO4)6.H2O (3), [SmNi6(Gly)6-(mu 3-OH)3Cl3(H2O)6].Cl3.(H2O)9 (4), and [ErNi6(Gly)6(mu 3-OH)3Cl3(H2O)6].Cl3.(H2O)9 (5), were synthesized through self-assembly and characterized by X-ray structure analysis. Complex 1 crystallizes in the trigonal P3 space group (a = b = 18.1121(2), c = 11.987(0) A, and Z = 2). Complex 2 belongs to the triclinic P1 space group (a = 16.0145(3), b = 20.58650(10), c = 20.8452(3) A, alpha = 78.0590(10), beta = 67.9200(10), gamma = 68.1540(10) degrees, and Z = 4). Complex 3 belongs to the monoclinic P2(1)/m space group (a = 14.9863(3), b = 13.533, c = 15.6171(3) A, beta = 116.8970(10) degrees, and Z = 2). Complexes 4 and 5 are isomorphous (4: trigonal, P3; a = b = 11.8661(4), c = 18.2034(10) A, Z = 2; 5: a = b = 11.9001(5), c = 18.1229(11) A, Z = 2). A Ln3+ ion is in the center of the prism formed by six nickel atoms. It coordinates to nine oxygen atoms. Its coordination polyhedron may be best described as a tricapped trigonal prism. The five complexes all have a core of [LnNi6(Gly)6-(mu 3-OH)3(H2O)6]6+ and were obtained through the edge-ligand exchange of the three mu 2-OH2 ligands of [LnNi6(Gly)6-(mu 3-OH)3(H2O)6(mu 2-OH2)3]6+ partly or wholly by glycine or Cl-. Magnetic measurements reveal that 1 and 4 exhibit antiferromagnetic interaction, while 5 exhibits a ferromagnetic interaction.Chemistry 01/2003; 8(24):5742-9. · 5.93 Impact Factor -
Article: Two 2D, 3D cadmium-pyridinedicarboxylate polymers: structures and photoluminescent properties
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ABSTRACT: Two Cd(II)-pyridinedicarboxylate polymers have been synthesized by hydrothermal reaction. They present novel structural motifs and exhibit intense fluorescent emissions upon photoexcitation.Inorganic Chemistry Communications. -
Article: A tri-layer cadmium(II) benzenetricarboxylate coordination polymer: crystal structure and photoluminescent property
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ABSTRACT: A cadmium benzenetricarboxylate coordination polymer has been synthesized by hydrothermal reaction. It presents an interesting tri-layer structure motif featuring tri-nuclear units and exhibits intense photoluminescence as well.Inorganic Chemistry Communications.
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Institutions
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2003–2008
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Chinese Academy of Sciences
Beijing, Beijing Shi, China
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