GuangHua Li

Find an error

Name: 李光华

Organization: Jilin University , China

Department:

Title: Associate Professor(PhD)

TOPICS

Inorganic Chemistry

Metal Organic Frameworks

Chemicals
References

Rational Design and Functionalization of a Zinc Metal–Organic Framework for Highly Selective Detection of 2,4,6-Trinitrophenol

Co-reporter:Shanghua Xing, Qiming Bing, Hui Qi, Jingyao Liu, Tianyu Bai, Guanghua Li, Zhan Shi, Shouhua Feng, and Ruren Xu

ACS Applied Materials & Interfaces July 19, 2017 Volume 9(Issue 28) pp:23828-23828

Publication Date(Web):June 27, 2017

DOI:10.1021/acsami.7b06482

To develop potential metal–organic frameworks (MOFs) for 2,4,6-trinitrophenol (TNP) detection, an amino-functionalized Zn-MOF, [NH2(CH3)2][Zn4O(bpt)2(bdc-NH2)0.5]·5DMF (where H3bpt = biphenyl-3,4′,5-tricarboxylate, H2bdc-NH2 = 2-aminoterephthalic acid, and DMF = N,N-dimethylformamide), has been designed theoretically and synthesized experimentally. Its structure is composed of Zn4O(CO2)7 secondary building units linked by mixed ligands, exhibiting a three-dimensional framework. Fluorescence exploration revealed that the amino-functionalized Zn-MOF shows high selectivity and sensitivity for TNP, which agrees well with the predictions of theoretical simulations. This work provides a suitable means to develop new potential MOFs for TNP detection performance with a combination of experimental and theoretical perspectives.Keywords: 2,4,6-trinitrophenol (TNP); experimental synthesis; metal−organic framework; sensor; theoretical simulation;

3d–4f Metal–Organic Framework with Dual Luminescent Centers That Efficiently Discriminates the Isomer and Homologues of Small Organic Molecules

Co-reporter:Guang Zeng, Shanghua Xing, Xiuru Wang, Yulin Yang, Dingxuan Ma, Hongwei Liang, Lu Gao, Jia Hua, Guanghua Li, Zhan Shi, and Shouhua Feng

Inorganic Chemistry 2016 Volume 55(Issue 3) pp:1089-1095

Publication Date(Web):January 12, 2016

DOI:10.1021/acs.inorgchem.5b02193

A 3d–4f luminescent metal–organic framework (MOF), [Tb2(Cu8I8)(C12H8NO2)6(H2O)4]·5C4H8O2 (4), and three analogues {[La2(Cu8I8)(C12H8NO2)6(C4H8O2)2(H2O)2]·3C4H8O2·2H2O (1), [Ce2(Cu8I8)(C12H8NO2)6(H2O)4]·5C4H8O2 (2), and [Eu2(Cu8I8)(C12H8NO2)6(H2O)4]·5C4H8O2 (3)}, were self-assembled from copper(I) halide clusters and lanthanide metal ions with an organic linker [3-(pyridin-4-yl)benzoic acid] under solvothermal conditions. Compound 4 with high quantum yield (Φ = 68%) exhibits reversible luminescence behavior, accompanying the removal and recovery of guest molecules (1,4-dioxane). Because of the unique porous structure and dual luminescent centers of compound 4, it can efficiently differentiate benzene series with different sizes and provide readouts in corresponding optical signals. Furthermore, it also can unambiguously discriminate the isomers, homologues, and other small molecules with similar structural motifs from one another. The luminescent color of the MOF sensor in different guest solvents has obvious changes that can be clearly distinguished by the naked eye. This multicolor luminescence originates from emissions of the dual luminescent centers, and the emissions have shifted, enhanced, weakened, or quenched to different degrees.

Synthesis, structures and luminescence properties of 3d–4f heterometallic–organic frameworks (HMOFs) constructed from different copper halide clusters

Co-reporter:Guang Zeng, Shanghua Xing, Xiuru Wang, Yulin Yang, Yang Xiao, Zhenhua Li, Guanghua Li, Zhan Shi and Shouhua Feng

CrystEngComm 2016 vol. 18(Issue 23) pp:4336-4342

Publication Date(Web):23 Feb 2016

DOI:10.1039/C5CE02544C

Four novel 3d–4f heterometallic–organic frameworks (HMOFs), namely [Gd2(Cu2I2)(C6H4NO2)6(C3H7NO)(H2O)]·(C3H7NO) (1), [Gd2(Cu4I4)(C6H4NO2)6(C3H7NO)2] (2), [Gd2(Cu6I6)(C12H8NO2)6(C2H6O)2(H2O)2] (3) and [Gd2(Cu8I8)(C12H8NO2)6(H2O)4]·5(C4H8O2) (4), have been solvothermally synthesized and characterized. The four compounds incorporate Cu2I2, Cu4I4, Cu6I6 and Cu8I8 clusters in three-dimensional frameworks, respectively, and the influence of Ln3+ ions, copper halide clusters and ligands on the construction of the structures has been analyzed. The four compounds display four different emission colours. Interestingly, compound 3 responds to external mechanical force. After grinding, the fluorescence has been obviously quenched. Compound 4 displays a reversible luminescence behavior, accompanying the removal and recovery of the guest molecules in the channel.

Multifunctional luminescence properties of co-doped lanthanide metal organic frameworks

Co-reporter:Shanghua Xing, Guang Zeng, Xiaomin Liu, Fen Yang, Zhiqiang Hao, Wei Gao, Yulin Yang, Xiuru Wang, Guanghua Li, Zhan Shi and Shouhua Feng

Dalton Transactions 2015 vol. 44(Issue 20) pp:9588-9595

Publication Date(Web):10 Apr 2015

DOI:10.1039/C5DT00249D

Two novel lanthanide metal organic frameworks [Eu4(bpt)4(DMF)2(H2O)6]·(DMF)5·(H2O)4 (1) and [Tb4(bpt)4(DMF)2(H2O)8]·(DMF)5·(H2O)3 (2) were synthesized under hydrothermal conditions, forming a three-dimensional structure (H3bpt = biphenyl-3,4′,5-tricarboxylate). Single crystal X-ray diffraction reveals that compounds 1 and 2 are heteromorphic and have different topologies due to the change of metal ions with different radii and coordination steric hindrance. The unique luminescence properties of Eu3+ and Tb3+ ions motivated us to dope different amounts of Tb3+ into a single host to obtain light tunable materials. The tunable multicolor emissions, including red, red-orange, orange, yellow and green, can be readily achieved from the doped Ln-MOFs 3–6 by increasing the concentration of Tb3+. In addition, compounds 5 and 6 also exhibit different temperature-dependent luminescence behaviors when the concentration of Eu3+ is low, generating new Ln-MOF thermometers.

Reversible photoluminescence switching behavior and luminescence thermochromism of copper(I) halide cluster coordination polymers

Co-reporter:Guang Zeng, Shanghua Xing, Xu Han, Bingjing Xin, Yulin Yang, Xiuru Wang, Guanghua Li, Zhan Shi and Shouhua Feng

RSC Advances 2015 vol. 5(Issue 51) pp:40792-40797

Publication Date(Web):29 Apr 2015

DOI:10.1039/C5RA05157F

Two novel coordination polymers [Cu3I4(C16H32N4)]·ClO4 (1) and [Cu6I6Br2(C16H32N4)(CH3CN)2] (2) (C16H32N4·2Br− = 4-Aza-1-azoniabicyclo-[2.2.2]octane, 1,1′-(1,4-butanediyl)bis-dibromide) have been synthesized under solvothermal conditions. At room temperature, compounds 1 (Φ = 46.2%) and 2 (Φ = 26.62%) show strong photoluminescence in solid state. At low temperature, compound 1 displays obvious thermochromic luminescence while compound 2 has no obvious change which can be observed by naked eye. However, compound 2 displays a interesting phenomenon. The luminescence of compound 2 is reversible when the coordinated CH3CN molecules in structure are removed by heat and recovered from acetonitrile solvent.

Reversible switching of slow magnetic relaxation in a classic lanthanide metal–organic framework system

Co-reporter:Qi Zhou, Fen Yang, Bingjing Xin, Guang Zeng, Xiaojing Zhou, Kang Liu, Dingxuan Ma, Guanghua Li, Zhan Shi and Shouhua Feng

Chemical Communications 2013 vol. 49(Issue 74) pp:8244-8246

Publication Date(Web):17 Jul 2013

DOI:10.1039/C3CC43747G

The reversible sorption–desorption of terminal coordinated water molecules and the guest molecules can switch slow magnetic relaxation in a classic lanthanide metal–organic framework system, Dy(BTC)(H2O)·DMF and Dy(BTC).

An unusual copper(I) halide-based metal–organic framework with a cationic framework exhibiting the release/adsorption of iodine, ion-exchange and luminescent properties

Co-reporter:Bingjing Xin, Guang Zeng, Lu Gao, Yun Li, Shanghua Xing, Jia Hua, Guanghua Li, Zhan Shi and Shouhua Feng

Dalton Transactions 2013 vol. 42(Issue 21) pp:7562-7568

Publication Date(Web):13 Mar 2013

DOI:10.1039/C3DT50238D

A copper(I) halide-based compound with a formula of [Cu4I3(DABCO)2]I3 (DABCO = N,N′-dimethyl-1,4-diazabicyclo[2.2.2]octane) has been prepared by solvothermal reactions. This compound has been characterized by single-crystal X-ray diffraction, elemental analysis, IR, TG, XPS and powder X-ray diffractions. Structure analyses reveal that this compound is constructed by unprecedented cationic cluster [Cu8I6]2+ and organic ligand DABCO and the channels of this compound are occupied by I2 and I−. The guest I2 and I− can move freely in and out of the host-framework. UV/vis spectra confirm that the I2 molecules in the channels can release into some organic solvents and IR spectra confirm the I− was exchanged by SCN−. In addition, the luminescent properties of this compound in the solid state have also been investigated.

Synthesis, structures, and magnetic properties of a family of 3d–4f [Na2Fe6Ln2] complexes (Ln = Y, Gd and Dy): effect of ligands on the connection of inorganic subunits

Co-reporter:Qi Zhou, Fen Yang, Dan Liu, Yu Peng, Guanghua Li, Zhan Shi and Shouhua Feng

Dalton Transactions 2013 vol. 42(Issue 4) pp:1039-1046

Publication Date(Web):31 Oct 2012

DOI:10.1039/C2DT31050C

A family of 3d–4f heterometallic compounds [Na2FeIII6DyIII2(N3)4(HL)4(CH3O)4(PhCO2)6] (1, H4L = 2-{[(2-hydroxy-3-methoxyphenyl)methylene]amino}-2-(hydroxymethyl)-1,3-propanediol), [Na2FeIII6DyIII2(N3)4(L′)4(CH3O)4(PhCO2)6(H2O)] (2, H3L′ = (E)-2-ethyl-2-(2-hydroxy-3-methoxybenzylideneamino)propane-1,3-diol), [Na2FeIII6DyIII2(N3)4(L′)4(CH3O)4(ButCO2)6] (3) [Na2FeIII6YIII2(N3)4(L′)4(CH3O)4(PhCO2)6(H2O)] (4), and [Na2FeIII6GdIII2(N3)4(L′)4(CH3O)4(PhCO2)6(CH3OH)2] (5) have been prepared using Schiff-base ligands, trinuclear iron precursor complexes, azides and lanthanide nitrates as reactants. In compounds 1 and 2, the structure of the [Na2FeIII6DyIII2] cluster forms a couple of cis,trans-isomers with substitution of methyl for a free hydroxyl group which belongs to the Schiff-base ligand. When the pivalates are employed instead of bulkier benzoates, the trans-[Na2FeIII6DyIII2] clusters act as network nodes in the formation of rhombic grid-like layered structures in compound 3. Compounds 2, 4 and 5 have similar metallic cores, only with different crystal solvent molecules. The magnetic measurements on all the compounds indicate dominant antiferromagnetic interactions between the metal centers.

Solvothermal Synthesis and Structural Characterisation of Metal-Organic Frameworks with Paddle-Wheel Zinc Carboxylate Clusters and Mixed Ligands

Co-reporter:Jia Li;Yu Peng;Hongwei Liang;Yang Yu;Bingjing Xin, ;Zhan Shi ;Shouhua Feng

European Journal of Inorganic Chemistry 2011 Volume 2011( Issue 17) pp:2712-2719

Publication Date(Web):

DOI:10.1002/ejic.201100227

Abstract

A series of 3D interpenetrating metal-organic frameworks, namely, [Zn₃(BPDC)₃(4-BPT)_1.5]·1.5DMF [1, BPDC = biphenyl-4,4′-dicarboxylic acid, 4-BPT = 4-amino-3,5-bis(4-pyridyl)-1,2,4-triazole, DMF = dimethylformamide], [Zn₃(BPDC)₃(4-PYTZ)_1.5]·1.5DMF [2, 4-PYTZ = 3,6-bis(pyridin-4-yl)-1,2,4,5-tetrazine], [Zn₂(OBA)₂(4-PYTZ)]·2DMF [3, OBA = 4,4′-oxybis(benzoate)], [Zn₂(OBA)₂(3-PYTZ)·Zn₂(OBA)₂(DMF)₂]·7DMF [4, 3-PYTZ = 3,6-bis(pyridin-3-yl)-1,2,4,5-tetrazine] and [Zn₂(OBA)₂(3-BPT)]·2.5DMF [5, 3-BPT = 4-amino-3,5-bis(3-pyridyl)-1,2,4-triazole] were synthesized by the reaction of Zn(NO₃)₂·6H₂O with various dipyridyl derivatives and rigid or nonrigid aromatic dicarboxylate ligands. These five compounds were constructed by paddle-wheel-type coordination of Zn^II pairs and mixed ligands, which can be simplified as nodes and linkers to generate a variety of topologies. Compounds 1 and 2 exhibit threefold interpenetrated 6-connected pcu topology. The interpenetration observed in compounds 1 and 2 is a rare case of heterointerpenetration. The structure of 3 is derived from a 2D double interpenetrated rhombic grid substructure, and is an interesting example of a self-catenated framework displaying a 6-connected uninodal framework with a point symbol (4⁴.6¹⁰.8). Compound 4, which is derived from a crosslinked threefold interpenetrated substructure with pts topology, displays a self-catenated 4,6-connected binodal framework with the point symbol (4².6².7²) (4².6⁸.7.8⁴). Compound 5 exhibits a self-catenated 6-connected structure with rob topology, and with the point symbol (4⁸.6⁶.8). Compounds 1–5 also display varied luminescence properties in the solid state.