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Zhou J.,Chongqing Normal University | Zhou J.,Chongqing Key Laboratory of Photo Electrical Functional Materials | Xiao H.,Chongqing Normal University | Xiao H.-P.,Wenzhou University | And 5 more authors.
Dalton Transactions | Year: 2014

Two types of lanthanide selenidostannates(iv) [Ln2(tepa)2(μ-OH)2Sn2Se6] {Ln = Y(Ia), Pr (Ib), Dy (Ic), Er (Id), Tm (Ie); tepa = tetraethylenepentamine} and [Ln2(tepa)2(μ2-OH)2Cl2]2[Sn4Se10]·4H2O {Ln = Y (IIa), Dy (IIb), Er (IIc), Tm (IId)} have been synthesized under identical solvothermal conditions and characterized structurally. Type I (Ia, Ib, Ic, Id and Ie) displays 1-D neutral chains [Ln2(tepa)2(μ-OH)2Sn2Se6]n, while type II (IIa, IIb, IIc and IId) contains discrete adamantane-like [Sn4Se10]4- ions with binuclear lanthanide complex [Ln2(tepa)2(μ-OH)2Cl2]2+ ions as counterions. Although the solvothermal synthetic methods could result in the formation of various transition-metal chalcogenidometalates, such identical experimental conditions usually result in the only stable phases of lanthanide chalcogenidometalates. Hence, two different lanthanide selenidostannates(iv), obtained under same solvothermal conditions and starting materials, have been first observed in this work. The optical properties of all the compounds have been investigated by UV-vis spectra. This journal is © The Royal Society of Chemistry. Source


Liu X.,Chongqing Normal University | Zhao R.,Chongqing Normal University | Zhou J.,Chongqing Normal University | Zhou J.,Chongqing Key Laboratory of Photo Electrical Functional Materials | Liu M.,Chongqing Normal University
Inorganic Chemistry Communications | Year: 2014

Three new vanadoborates [Zn4V10B34O 84H10](H2dap)4(dap) 2·9H2O (1), [Zn(H2teta) 2V12B18O54-(OH)6] ·4H3O (2) and [Zn(H3tepa)V12B 18O54(OH)6][H2en] 2·H3O·3H2O (3) have been hydrothermally synthesized and structurally characterized. 1 consists of new cluster [Zn4V10B34O84H 10]8 - with the rare [Zn4B4O 18] unit, protonated H2dap2 +, free dap and H2O molecules. Both 2 and 3 contain [V12B 18O54(OH)6(H2O)]10 - clusters, which are connected by [Zn(H2teta)2] 2 +/[Zn(H3tepa)]2 + groups as bridges into 1-D chain. The magnetic susceptibility of 3 shows the antiferromagnetic interaction between VIV cations. © 2014 Elsevier B.V. Source


Zhu L.,Chongqing Normal University | Zhu L.,Yulin Normal University | Liu X.,Chongqing Normal University | Zhou J.,Chongqing Normal University | And 5 more authors.
Journal of Cluster Science | Year: 2015

Three lanthanide thioantimonates [Ho(en)4]SbVS4·0.5en (1, en = ethylenediamine) and [Ln(teta)(en)SbVS4] [Ln = Ho (2), Y (3), teta = triethylenetetramine] were prepared under mild solvothermal conditions and structurally characterized. 1 consists of isolated [Ho(en)4]3+ ion, tetrahedral [SbVS4]3− ion, and free en molecule. Both 2 and 3 contain neutral lanthanide-centred complex, where the tetrahedral anion [SbVS4]3− acts as a chelating ligand to complex [Ln(en)(teta)]3+ cation. Density functional theory calculations for both 2 and 3 have been performed, and the band gaps of 2.02 eV for 1, 1.78 eV for 2 and 1.83 eV for 3 have been derived from optical absorption. © 2015, Springer Science+Business Media New York. Source


Tang Q.,Chongqing Normal University | Zhou J.,Chongqing Normal University | Zhou J.,Chongqing Key Laboratory of Photo Electrical Functional Materials | Cao S.,Chongqing Normal University | And 3 more authors.
Journal of Cluster Science | Year: 2015

The reported metal complexes of ethyl isonicotinate (L) and its derivative ligands are usually synthetized by two-step method with difficult synthetic routes, but this work first provides one-step solvothermal method for preparation of 1-D copper(I) coordination polymer of ethyl isonicotinate [CuI(L)]n (1), where 1-D stair-step chain [Cu2I2]n is decorated by L ligand. 1 exhibits a fluorescence emission at room temperature, and its theoretical band structure has also been studied. © 2015, Springer Science+Business Media New York. Source


Ji H.,Chongqing Normal University | Ji H.,Chongqing Key Laboratory of Photo Electrical Functional Materials | Zhou Y.,Chongqing Normal University | Peng Y.,Jilin University | And 5 more authors.
Zeitschrift fur Kristallographie | Year: 2013

Two d10 metal coordination polymers, [Zn(CMTB)(bipy)] · (H2O)2 (1) and [Cd(CMTB)(bipy)] · (H 2O)1.25 (2) (CMTB = 4-[(carboxymethyl) thio]-benzoic acid, bipy = 2,2′-bipyridine) were synthesized under mild mixed solvothermal conditions and characterized by single crystal X-ray diffraction and IR spectroscopy. Compound 1 crystallizes in monoclinic system, space group P21=n with cell parameters: a = 8:1083(16)Å , b = 17.194(3)Å , c = 28.646(6)Å , β = 97.96(3) and Z = 8. It contains a onedimensional (1D) chain structure that is further assembled into a two-dimensional (2D) network by the co-effects of the inter-chain C - H· · ·O hydrogen bonds. Each Zn(II) is six-coordinated to four O atoms from two CMTB ligands, and two N atoms from the 2,2′-bipyridine forming a distorted octahedral coordination geometry. Compound 2 crystallizes in monoclinic system, space group P2/c with cell parameters: a = 19:656(4)Å , β = 10:716(2)Å , c = 19:455(4)Å , b = 94.10(3) and Z = 8. It displays two-dimensional framework\ and metal ion Cd(II) is octahedrally coordinated to four O atoms and two N atoms. Both Compound 1 and 2 are photoluminescent active and their emission properties were also studied. © by Oldenbourg Wissenschaftsverlag, München. Source

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