A Novel Three-dimensional Mn(Ⅱ) Coordination Polymer Constructed from Biphenyl-3,3?,5,5?-tetracarboxylic Acid and Water

The title Mn(Ⅱ) coordination polymer,poly{[heptaaqua-(μ4-bi-phenyl-3,3?,5,5?-tetracarboxylate)-bimanganese(Ⅱ)] pentahydrate},[Mn_2(bpta)(H_2O)_7]_n·5n H_2O(I),is crystallized from a mixture of biphenyl-3,3?,5,5?-tetracarboxylic acid(H_4bpta) and MnCl_2·4H_2O in waterethanol under room temperature. Its asymmetric unit consists of one and two halves of crystallographically independent Mn(Ⅱ) cations,one fully deprotonated H4 bpta ligand,seven coordinated water molecules and five solvent water as guest molecules. In I,each Mn(Ⅱ) atom is octahedrally coordinated by six oxygen atoms from bpta~(4-) anions and coordinated water molecules. In the Mn(Ⅱ) cations,one half Mn(Ⅱ) ion of them located at a 2-fold axis generating a trinuclear [Mn_3(H_2O)_2(RCOO)_2] linker by μ1,1-O(water) and μ1,3-O,O?(carboxylate) bridges and another half Mn(Ⅱ) ion with an inversion is a mononuclear linker. These neighbouring trinuclear and mononuclear Mn(Ⅱ) cations are linked together by biphenyl-3,3?,5,5?-tetracarboxylates to form a three-dimensional framework with a(42.84) topology of a(4,4)-connected net,in which the positions of the trinuclear [Mn_3(H_2O)_2(R-COO)_2] linker as a 4-connector linking four bpta~(4-) ligands in I reproduce an eagle-shaped arrangement. The polymeric structure exhibits a water channel with an accessible void of 797.1 ?~3,amounting to 15.7% of the total unit-cell volume. Each of the cavities in the network is occupied by solvent water molecules.     

Two New Coordination Polymers Based on H_4BIPA-TC: Syntheses and Fluorescence Sensing for Nitroaromatic Compounds and Fe~(3+) Ion

Based on the solvothermal reaction of 5,5'-(1,3,6,8-tetraoxobenzo[lmn][3,8] phenanthrolin-2-7-diyl)bis-1,3-benzenedicarboxylic acid(H_4L) linker and Zn(Ⅱ)/Cd(Ⅱ), two new 2 D coordination polymers(CPs), namely {[ZnH_2L(4,4'-bibp)]·H_2O}_n(1) and {[CdL_(0.5)(1,4-bimb)_(0.5)(H_2O)]·EtOH}n(2)(L = BIPA-TC), have been successfully constructed and characterized by EA, PXRD and IR with the aid of 4,4'-bis(benzoimidazo-1-yl)biphenyl(4,4'-bbib)/1,4-bis(imidazol-1-ylmethyl)benzene(1,4-bimb). The structural analysis showed that complex 1 exhibits a 3D supramolecular structure with the topology of sql, and complex 2 possesses a 2-nodal(4,6)-c framework with the topology of(3~2·4~2·5~2)(3~4·4~4·5~4·6~3)-4,6 T26. Fluorescent experiments showed that 1 and 2 have high selectivity and sensitivity for the sensing of nitroaromatic compounds and Fe~(3+) in aqueous solutions.     

Crystal Engineering of Co(Ⅱ) Metal-organic Frameworks Based on the Hydrolysis Product of Letrozole and Coligands

The cyanide groups of letrozole(1-[bis(4-cyanophenyl)methyl]-1,2,4-triazole) were hydrolyzed into the carboxylic groups under alkaline conditions. Then the hydrolysis product(1-[bis(4-carboxylphenyl)methyl]-1,2,4-triazole, H_2ltzda) reacted with Co(NO_3)_2·6H_2O in the presence of different bipyridl-typed ligands under hydrothermal conditions. As a result, two new Co(Ⅱ) MOFs were obtained, formulated as [Co_2(ltzda)_2(bpp)_2]_n(1) and {[Co_2(ltzda)_2(bpy)]·4H_2O}_n(2)(bpp = 1,3-di(4-pyridyl)propane, bpy = 4,4'-bipyridine). Two MOFs have been characterized by single-crystal X-ray diffraction, thermogravimetric analysis and magnetic measure. 1 displays a 2D metal-organic framework containing wave layers and 2 shows a pillared-layer structure existing in a 2-fold interpenetrated mode.     

Synthesis and characterization of bis-[1]rotaxanes via salen-bridged bis-pillar[5]arenes

The series of salen-bridged bis-pillar[1]arenes were conveniently prepared by condensation reaction of5,5'-methylenebis(2-hydroxybenzalde hyde)or 5,5'-(propane-2,2-diyl)bis(2-hydroxybenzaldehyde)with mono-amido-functionalized pillar[5]arenes containing different terminal aminoalkyl groups in refluxing ethanol.The^1H NMR and 2D-NOESY spectra indicated that the salen-bridged bis-pillar[5]arenes with longer allcylene linker(n=3,4,6)formed the fascinating bis-[1]rotaxanes,while the salenbridged bis-pillar[5]arenes with short hydrazine and ethylenediamino linker(n=0,2)predominately existed in free form.The single crystal structure of the bis-pillar[5]are ne ambiguously indicated that two propylenediamino linker inserted in to two cavities of pillar[5]arene to form a novel bis-[1]rotaxanes.     

Layered and three-dimensional uranyl–organic assemblies with 4,4′-oxidiphthalic acid

Hydrothermal reactions of uranyl nitrate and 4,4'-oxidiphthalic acid(H_4L) resulted in the formation of three new uranyl-organic framework materials,namely(NH_4)_2[(UO_2)_3(L)_2]·5H_2O(1),(NEt_4)[(UO_2)_3(H_2O)(L)(HL)](2) and(UO_2)_7(H_2O)_2(phen)_4(L)_2(HL)_2(3)(NEt_4 = tetraethylammonium,phen = 1,10-phenanthroline).These three structures all comprise common uranyl pentagonal bipyramids.In 1,UO_7polyhedra are linked by hexadentate ligands to form a 3D framework with 1D channels,in which are located NH_4~+ ions and water molecules.While in 2,the organic ligands adopt pentadentate and hexadentate coordination modes,ligating UO_7 units to create a layered structure with channels filled by NEt_4~+ ions.For 3,uranyl square bipyramids are also accommodated together with pentagonal bipyramids,which are linked by tetradentate carboxylate ligands to produce the layered assembly.Phen molecules also coordinate to the uranyl centers to build up the structure.Luminescent studies indicate that 2 and 3 exhibit the characteristic uranyl emission.     

Synthesis,Structure and Biological Activities of a Novel Anionic Organotin(Ⅳ) Complex {[(pClC_6H_4CH_2)Sn(H_2O)(Cl)_2OCOCH(O)CH(O)CO_2Sn(H_2O)(Cl)_2(p-ClC_6H_4CH_2)]·2(HNEt_3)}

A novel anionic organotin(Ⅳ) complex {[(pClC_6H_4CH_2)Sn(H_2O)(Cl)_2OCOCH(O)CH(O)CO_2Sn(H_2O)(Cl)_2(p-ClC_6H_4CH_2)]·2(HNEt_3)}(1) was synthesized by the reaction of di(p-chlorobenzy)tin dichloride with the D-tartaric acid in 2:1 molar in the presence of an organic base triethylamine. The structure was characterized by elemental analysis, IR, TG, XRD and single-crystal X-ray diffraction. It crystallizes in triclinic, P1 space group, with a = 0.7067(1), b = 1.9762(3), c = 2.2383(3) nm, α = 91.544(2)°, β = 90.075(2)°, γ = 90.110(2)°, V = 3.1247(7) nm~3, Z = 3, Dc = 1.621 g/cm~3, m(Mo Kα) = 16.29 cm–1, F(000) = 1530, R = 0.0394, wR = 0.1092,(Δρ)max = 1224 and(Δρ)min = –840 e/nm~3. The stabilities, orbital energies and composition characteristics of some frontier molecular orbitals of 1 have been carefully investigated with quantum chemistry calculation. In addition, the in vitro antitumor activity suggested that 1 had stronger inhibitory activity on H460, MCF7 than on A549.     

Synthesis,Structure and Luminescence Property of a New Two-dimensional Znic(Ⅱ) Coordination Polymer

Based on 5-dimethylamino-isophthalic acid(H_2dia) and 1,2-bis(4-pyridyl)ethylene(bpe) mixed linkers, a new d~(10)-configuration Zn(Ⅱ) coordination polymer material, [Zn(dia)(bpe)(H_2O)]n(1), was synthesized. In the asymmetric unit, there are one Zn~(2+) ion, two dia~(2-)anions, one neutral bpe linker and one free H_2O molecule. In the complex, adjacent Zn~(2+) ions are alternately bridged by the dia~(2-)dianions to generate chains which are further connected by flexible bpe ligands to form a two-dimensional(2 D) layer structure. In topology, the structure of 1 represents a non-interpenetrating 4-connected sql topology. Moreover, infrared spectroscopy, elemental analyses, thermogravimetric analysis, powder X-ray diffraction, solid UV-Vis absorption spectra and photoluminescent property of 1 are also investigated.     

A Novel Cd(Ⅱ)-MOF Constructed from an Organosillicon Tetracarboxylic Acid Ligand

A silicon-based tetracarboxylate connector has been prepared and employed in the construction of new metal-organic framework(MOF) material. A novel Cd(Ⅱ) coordination compound, namely, [Cd_4(H_2O)(L)(DMA)_2]_n(1, H_4L = 5,5?-(diphenylsilanediyl) diisophthalic acid, DMA = N,N-dimethylacetamide) has been successfully synthesized based on the ligand. X-ray single-crystal structure analysis reveals that polymer 1 crystallizes in monoclinic, space group P1 with a = 10.3335(11), b = 14.1557(15), c = 22.004(2) ?, α = 72.308(2), β = 88.105(2), γ = 88.363(3)o, V = 3064.2(6) ?~3, Cd_4Si_2C_(64)N_2O_(19)H_(52), Mr = 1659, Dc = 1.790 g/cm~3, μ(Mo Kα) = 1.486 mm~(-1), F(000) = 1630, Z = 2, the final R = 0.0660 and w R = 0.1302 for 12069 observed reflections(I 2σ(I)). Its structure has been further characterized by elemental analysis, thermogravimetric analyses and IR spectroscopy. Additionally, luminescent property of the title compound has been explored, and shows intense photoluminescent property in the solid state at room temperature.     

Effect of pH/Auxiliary Ligand on the Structures of Coordination Compounds Based on a Novel Ligand 2,6-Bis(pyrazin-2-yl)pyridine-4-carboxylate

Four new coordination compounds, [Zn(bppc)_2(H_2O)_2]·3 H_2O(1), [Zn2(bppc)2(mbdc)(H_2O)4]·7 H_2O(2), [Zn(bppc)2(H_2O)2]n·n(m-Hbdc)·n(H_2O)(3), [Zn2(bppc)(btc)(H_2O)3]n·5 n H_2O(4)(Hbppc = 2,6-bis(pyrazin-2-yl)pyridine-4-carboxylate, H2(m-bdc) = 1,3-benzenedicarboxylic acid, H3 btc = 1,3,5-benzene-tricarboxylic acid), have been hydrothermally synthesized and structurally characterized. Compound 1 shows a mononuclear structure and 2 shows a dinuclear structure. Compound 3 is a one-dimensional chain structure, which is extended into a 3D supramolecular network by intermolecular hydrogen interactions. In 4, a 1D loop-like chain is connected by(btc)3-anions to generate a 2D layer structure. The structure differences of 1~4 show that the p H and aromatic acid as auxiliary ligand have important influence on the final structures.iAdditionally, the luminescent properties of 1~4 have been investigated with fluorescent spectra in the solid state, and 1~4 display a strong fluorescent emission at room temperature and have potential applications as fluorescent-emitting materials.     

Synthesis,Crystal Structure and Luminescent Property of a Ag(Ⅰ) Coordination Polymer with a 3D Sandwich-like Framework

A new coordination polymer,{[Ag_2(bpp)_2(H_2O)_2]·bpdc·3H_2O}_n,derived from the ligand biphenyl-4,4'-dicarboxylic acid(H_2bpdc),has been obtained through a hydrothermal technique(bpp = l,3-bis(4-pyridyl)propane).Its single-crystal structure has been characterized by single-crystal X-ray diffraction,powder XRD,FT-IR,TGA and elemental analysis techniques.The single-crystal X-ray diffraction reveals that complex 1 consists of 1D infinite[Ag(bpp)(H_2O)]_n~(n+)cationic chains,2D anionic layer constructed by bpdc anions and free water which provide charge compensation in the crystal structure.The 1D infinite[Ag(bpp)(H_2O)]_n~(n+) cationic chains and 2D anionic layer are further stacked in-ABAB- fashion through intermolecular H-bonding to form a 3D sandwich-like framework.In addition,the luminescent property of complex 1 in the solid state at room temperature was investigated.     

Structural Characterization and Luminescence Properties of Two 4d-4fLn-Ag Coordination Compounds Based on Dinuclear Lanthanide Clusters

Two new compounds,[ErAg（INA）2（C2O4）]·2H2O（1）（HINA=nicotinic acid） and [Tb0.8Y0.2Ag2（IN）4·（H2O）5]·NO3·2H2O（2）（HIN=isonicotinic acid）,based on the {Ln2} building units,have been hydrothermally synthesized and characterized by single-crystal X-ray diffraction,infrared spectroscopy,thermal analysis and powder X-ray diffraction（PXRD）.Single-crystal X-ray diffraction data reveal that both compounds crystallized in the low-symmetry triclinic space group P1-.Compound 1 is a 3D heterometallic coordination framework based on {Er2}clusters,oxalate ligands and bridging [Ag（INA）] linkers,while compound 2 consists of 0D [Tb0.8·Y0.2Ag2（IN）4（H2O）5]2 subunits that give a 3D supramolecular structure through hydrogen bond interaction.The photoluminescent properties of both compounds（1 and 2） were studied.     

Hydrothermal Synthesis,Structure and Property of Transition Metal(Mn,Zn, Cd or Pb) Coordination Frameworks Using Quinoline-8-oxy-acetate Acid and Dicarboxylic Acid as Ligands

Five transition metal coordination compounds, [Mn₂(8-qoac)₂(bdc)(H₂O)₄](1)(8-qoacH=quinoline-8-oxy- acetate acid, H₂bdc=benzene-1,4-dicarboxylic acid), [Zn₄(8-qoac)₄(bdc)₂]_n(2), {[Cd₂(8-qoac)₂(Hip)₂(H₂O)₂]· (H₂O)₄}_n(3)(H₂ip=benzene-1,3-dicarboxylic acid), [Pb₃(8-qoac)₂(bdc)_1.5(H₂O)Cl]_n(4) and [Zn₂(8-qoac)(8-ql)(bdc)]_n (5)(8-Hql=8-hydroxyquinoline), were synthesized by hydrothermal syntheses of metal salts with benzenedicarboxy- lic acid and 8-qoacH. Compound 1 possesses a discrete dimer bridged by bdc^2- ligand. Compound 2 presents a 2D layer network constructed from bdc^2- linkers and 1D infinite ribbons, in which Zn(II) centers are bridged by 8-qoac^- with a tetradentate binding mode. Compound 3 displays a 1D zigzag chain, with adjacent chains further connected via extensive O-H···O hydrogen bonds to generate a 3D supramolecular structure. Compound 4 shows a 3D framework containing trinuclear lead secondary building units and bdc^2- linkers, in which a new coordination mode of 8-qoac^- ligand is observed. In compound 5, Zn(II) ions are simultaneously bridged by 8-qoac^-, 8-ql^- and bdc^2- ligands to form tetranuclear zinc units, which are further interlinked by bdc^2- linkers to yield a 2D wave-like layer. Based on intraligand(IL)(π-π^*) fluorescent emission, compounds 1―5 possess strong purple fluorescent emissions. In addition, the thermal stabilities of compounds 1―5 were studied.     

Homochiral cobalt(II) and strontium(II) amino-carboxylate–phosphonate hybrids

Two homochiral metal amino-carboxylate–phosphonate hybrids, namely, [Co₂Cl(S-HL)(H₂O)₅]Cl · H₂O 1 and Sr₂(S-HL)(NO₃)₂(H₂O) · H₂O 2 (S-H₃L = S-HO₂CC₄H₇NCH₂PO₃H₂) have been synthesized by the reaction of the enantiopure S-H₃L ligand with cobalt(II) chloride or strontium nitrate under acidic condition at room temperature. The structure of compound 1 features a novel 3D framework with helical chains and channels. Compound 2 has a layered structure in which the 1D chains of edge-sharing SrO₈ and SrO₉ polyhedra are interconnected by phosphonate ligands.     

Synthesis and structures of three 1-aminoethylidenediphosphonate compounds with transition-metal ions

Three new aminodiphosphonates, namely M(phen)(AEDPH₃)₂·4H₂O (M = Zn, (1); Ni, (2)) and Cu(phen)(AEDPH₃)₂·H₂O (4), in addition to the previously reported Co(phen)(AEDPH₃)₂·4H₂O (3), Cu(2,2′-bipy)(H₂O)(HEDPH₂)·2H₂O (5), and Cu(phen)(H₂O)(HEDPH₂)·2H₂O (6) (AEDPH₄ = 1-aminoethylidenediphosphonic acid, HEDPH₄ = 1-hydroxyethylidenediphosphonic acid, phen = 1,10-phenanthroline and 2,2′-bipy = 2,2′-bipyridyl), have been synthesized and characterized. These compounds are all synthesized at the similar condition (80 °C), whereas they illustrate different frameworks. Compounds 1, 2 and 3 are isomorphous, which contain two same chelate and one six-coordinated metal ion, and display a three-dimensional (3D) supramolecular structure through hydrogen bonds and π–π stacking interactions. Compound 4 contains a chelate and a monodentate , while the Cu ion is five-coordinated. The coordination model of Cu²⁺ in 4 is similar to that of 5 and 6. Comparing with four aminoethylidenediphosphonates, the difference of their structures is directed to the coordination model of the metal ions, while the three copper(II) diphosphonates illustrate different structures based on the deprotonized degree of the corresponding diphosphonic acids.     

Synthesis, spectral properties, crystal structures and antimicrobial effects of copper(II) pyridinecarboxylate adducts with chelating ligands

The reaction of an ethanolic solution of copper(II) pyridinecarboxylates CuX₂·nH₂O (where X is nicotinate (nic) (n=0) or isonicotinate (isonic) (n=4)) with ethylenediamine (en) in a molar ratio of 1:2 lead to the isolation of solid tetragonally distorted octahedral complexes of the type [Cu(en)₂(H₂O)₂]X₂·nH₂O (n=1 for nic; n=0 for isonic). The analogous reaction of CuX₂·nH₂O with diethylenetriamine (dien) in a molar ratio of 1:1 leads to the formation of square-pyramidal pentacoordinated complexes of the type [CuX(dien)(H₂O)]X. On the other hand, the reaction of equimolar quantities of copper(II) nitrate and dien with nicotinate anions (equimolar quantities of pyridinecarboxylic acid and NaOH) in ethanolic solutions gives a solid monomeric complex [Cu(nic)(NO₃)dien)(H₂O)]·H₂O in which the coordination polyhedron around the Cu(II) atom is a (4+1+1) distorted tetragonal bipyramid. Based on the molecular structure the electronic and IR spectra are discussed. Moreover, the results of the quantitative determination of antimicrobial activity of the isonic complexes [Cu(isonic)₂(H₂O)₄], [Cu(en)₂(H₂O)₂](isonic)₂, [Cu(isonic)(dien)(H₂O)](isonic), as well as isonicotinic acid, ethylenediamine and diethylenetriamine alone are discussed.     

Two novel lanthanide 1-D chain coordination polymers of pyridinedicarboxylic acids: hydrothermal synthesis, structure and luminescent properties

Two novel lanthanide coordination polymers [Sm(Hdipic)(dipic)(H₂O)₂·4H₂O]_n (1) (H₂dipic=2,6-pyridinedicarboxylic acid) and [Dy(Hdinic)(dinic)(phen)(H₂O)·H₂O]_n (2) (H₂dinic=2,5-pyridinedicarboxylic acid) have been synthesized under hydrothermal condition and characterized by single-crystal X-ray diffraction. The results reveal that both of them form a chain-like one-dimensional structure. The photophysical properties for the two complexes have been also reported. Complex 1 shows the characteristic luminescence of central Sm³⁺ while complex 2 exhibits the particular emission ascribed H₂dinic ligands, which suggest the different energy transfer process takes place.     

Synthesis, Structures, Fluorescence and Magnetism of Two Lanthanide Metal-organic Frameworks with CaF2 Topology Based on Silicon-centered Tetrahedral Ligand

Two 3D multifunctional lanthanide metal-organic frameworks(MOFs), Pr(HTCPS)(H₂O)·2DMF·C₂H₅OH· 5H₂O(JUC-93) and Pr₃(TCPS)₂(NO₃)(H₂O)₄(DMA)₂·2DMA·C₂H₅OH·3H₂O(JUC-94)[H₄TCPS=tetrakis(4-carboxyphenyl)- silane, DMF=N,N'-dimethylformamide, DMA=N,N'-dimethylacetamide and JUC=Jilin University China] were synthesized by the self-assembly of a rigid silicon-centered tetrahedral carboxylate ligand H₄TCPS and Pr(III) ions in different solvothermal reactions. X-Ray crystallography revealed that they exhibited a rare CaF₂ topology framework, constructed from the 4-connected tetrahedral TCPS unit with the 8-connected dinuclear praseodymium cluster unit and trinuclear praseodymium cluster unit, respectively. In addition, the luminescent and magnetic properties of the two compounds were investigated.     

Supramolecular formation by aromatic ring stacking and hydrogen bonding in lanthanide(III) complexes with amino acids and 1,10-phenanthroline

[Eu(ABA)(phen)₂(H₂O)₃](ClO₄)₃·3phen·4.5H₂O (1) and [Eu(Val)(phen)₂(H₂O)₃](ClO₄)₃·3phen·2H₂O (2) are two new europium complexes with amino acids and 1,10-phenanthroline (phen=1,10-phenanthroline, ABA=-amino butyl acid, Val= -valine). Their crystal structures were measured by X-ray crystallography. Europium atoms in both complexes are nine-coordinated with bidentate 1,10-phenanthroline and carboxylate anion of amino acids, and water molecules. In the solid state, 1 and 2 have a structure involving aromatic stacking of the coordinated and non-coordinated 1,10-phenanthroline and the oxygen atoms of non-coordinated perchlorate anions being H-bond acceptors connect [Eu(ABA)(phen)₂(H₂O)₃]³⁺·3phen·4.5H₂O or [Eu(Val)(phen)₂(H₂O)₃]³⁺·3phen·2H₂O in their structures. In their interactions, several C–HO bonds play an important role. Owing to their different amino acid ligands and the number of lattice water molecules, there is some difference in their hydrogen bond patterns in 1 and 2. The side chain of -valine is involved in the formation of C–HO bonds. Hydrogen bond and π–π interactions determine the supramolecular formation of three-dimensional net works of both complexes.     

Structure,Thermal Behavior and Characterization of a New Hybrid Iron Fluoride FeF4(2,2'-bipyridine)(H2O)2

New crystal of FeF₄(2,2'-bipyridine)(H₂O)₂ was prepared by hydrothermal synthesis. Crystalline structure determination is performed from single crystal X-ray diffraction data. The unit cell is monoclinic space group P2₁/n, with cell parameters a=0.9046(5) nm, b=0.7502(5) nm, c=1.9539(5) nm, β=93.307(5)°, V=1.3238(12) nm³ and Z=4. The structure of FeF₄(2,2'-bipyridine)(H₂O)₂ is built up from FeF₄N₂ octahedra coordinated by two nitrogen atoms of the 2,2'-bipyridine molecules, and four fluorine atoms as well as uncoordinated H₂O molecules. Thermal analysis of the title compound showed that the decomposition introduced four steps. IR spectra confirmed the presence of 2,2'-bipyridine molecules. The optical absorption was measured at the corresponding l_max using UV-Vis diffuse reflectance spectrum.     

Assembly of Two Isostructural Metal-organic Frameworks Based on Hetero-N,O Donor Ligand for Detecting Nitro Explosives

Two isostructural metal-organic frameworks,[NO3][M3(H2O)3O(TBA)3]-2DMF-6H2O(1 and 2)[M=In and Fe, H2TBA=4-(1H-tetrazol-5-yl)-benzoic acid], have been successfully synthesized. Compounds 1 and 2 have three-dimensional structures bridged via the typical 6-connected tri-nuclear cluster units M3O(COO)6 and linear linker H2TBA. The whole 3D framework possesses a 6-connected acs topology. Notably, by the fluorescence technique, compound 1 can detect nitro explosives through fluorescence quenching effect, especially for 2,4,6-trinitrophenol(TNP, Ksv=3.64×10^4 L/mol). Furthermore, the fluorescence spectrum red shifts as the number of NO2 group increases. Based on the aforementioned consideration, compound 1 can be considered as a potential luminescent probe for the detection of TNP.