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1.
Two entangled coordination polymers [Cd2(bib)(bdc)2]n (1) and [Cd2(bib)(bda)2]n (2) were synthesized by the hydrothermal reaction (bib = 1,4-bis(2-methyl-imidazol-1-yl)butane, bdc = 1,2-benzenedicarboxylate, bda = 1,4-benzenediacetate). 1 exhibits an unusual 6-connected self-catenated 3D network based on Cd2(COO)2 dimer with the point symbol of (44·610·8). 2 exhibits a 3-fold interpenetrating 3D pcu network based on Cd2(COO)2 dimer. The different conformations of bib ligands (the anti–anti–anti conformation in 1 and gauche–anti–gauche conformation in 2) play the key role in the construction of different structures in 1 and 2. The luminescence and thermal stability were investigated. 相似文献
2.
Two coordination polymers {[Cu4(OH)2(btrb)2(btc)2]·4H2O}n (1) and {[Cd2(btrb)(adc)2(H2O)]·H2O}n (2) were synthesized with hydrothermal method and characterized (btrb = 1,4-bis(1,2,4-triazol-4-ylmethyl)benzene, btc = 1,3,5-benzenetricarboxylate, adc = 1,3-adamantanedicarboxylate). 1 shows an unusual (3,10)-connected two-dimensional metal–organic framework based on the tetranuclear copper(II) cluster [Cu4(μ3-OH)2]. 2 is an interesting three-dimensional network based on the one-dimensional metal–organic nanotube. 1 shows good photocatalytic activity for the degradation of methyl blue (MB). The luminescence of 2 was investigated. 相似文献
3.
Three new coordination compounds, {[Zn(btrp)(ip)]?2H2O}n (1), {[Zn(btrp)(hip)]?2H2O}n (2), and {[Zn1.5(btrp)(btc)(H2O)]?H2O}n (3) (btrp = 1,3-bis(1,2,4-triazol-1-yl)propane, H2ip = isophthalate, H2hip = 5-hydroxy isophthalate, H3btc = benzene-1,3,5-tricarboxylic acid) have been prepared via solvothermal method and characterized by single crystal X-ray diffraction and elemental analysis. 1 possesses 2D (4. 4) net framewok. 2 is also a 2D infinite layer framework, and the resulting 2D structure is interconnected by hydrogen-bond and π…π interactions to lead to a 3D supramolecular architecture. 3 exhibits a novel 2D framework with three nonequivalent points, {5.62}{52.6}{54.82}. The fluorescence properties of 1–3 have been studied at room temperature. 相似文献
4.
Na Liang Ju Wang Deyun Yuan Baolong Li Haiyan Li 《Inorganic chemistry communications》2010,13(7):844-846
The self-assembly reaction of the flexible ligand 1,2-bis(1,2,4-triazol-4-yl)ethane (btre) and AgClO4 gives a novel coordination polymer {[Ag(btre)](ClO4)}n (1). Adjacent two silver(I) atoms are linked through four nitrogen atoms of two N1/N2 atoms of two btre ligands and form Ag2N4 6-membered rings and construct a one-dimensional chain. The chains extend through btre bridges in four different directions alternatively to construct a novel three-dimensional network. Compound 1 exhibits luminescence emission maxima at 326 nm upon excitation at 260 nm in the solid state at room temperature. The anion exchange of compound 1 with BF4? and NO3? occurs smoothly in a typical aqueous media. 相似文献
5.
Xiu-Ju Yin Xin-Hui Zhou Zhi-Guo Gu Jing-Lin Zuo Xiao-Zeng You 《Inorganic chemistry communications》2009,12(6):548-551
Two 3D organic–inorganic hybrid coordination polymers, [M2(ttmb)2(SO4)2(H2O)2] · 7H2O (M = Cd, 1; M = Mn, 2; ttmb = 1,3,5-tris(1,2,4-triazol-1-ylmethyl)benzene), have been synthesized and structurally characterized. They are isostructural and possess a 3D architecture fused from 2D (4,4) M(ttmb) networks and MSO4 chains by sharing “hinge” metal atoms. The thermal properties of 1 and 2, luminescent property of 1 as well as magnetic property of 2 have been investigated. 相似文献
6.
Three copper(I) cyanide coordination polymers, namely [Cu8(CN)8(btmb)2]n (1), [Cu(CN)(btmb)0.5]n (2) and [Cu2(CN)2(dpa)]n (3) (btmb = 1,4-bis(1,2,4-triazol-1-ylmethyl)benzene, dpa = di(4-pyridyl)amine), were synthesized under hydrothermal conditions and characterized by elemental analyses, IR spectra, PXRD and thermogravimetric analyses. Single-crystal X-ray diffraction analyses reveal that complex 1 is an interesting 2D double-layered network constructing from eight distinct Cu(I) centers, eight μ2-cyanides and two tetradentate cis-btmb ligands. Complex 2 is a ladder-like coordination polymer assembled by CuCN linear chain and bidentate trans-btmb linker. Complex 3 has a 2D wave-like network constructing from CuCN zigzag chain and V-shape dpa spacer. These coordination polymers are thermally stable up to 270–300 °C. They emit blue luminescence originating from ligand-centered emission. 相似文献
7.
Hongliang Wang Yunfei Feng Na Liang Baolong Li Yong Zhang 《Inorganic chemistry communications》2009,12(11):1161-1163
The reaction of 1,3,5-tri(1,2,4-triazol-1-ylmethyl)-2,4,6-trimethylbenzene (ttmb) with Ni(II) salts yields two coordination polymers [Ni3(ttmb)2(H2O)6Cl6](H2O)3 (1) and [Ni(ttmb)2(H2O)2](NO3)2(H2O)4 (2). The flexible ligand ttmb shows the cis,cis,cis-conformation and a tri-monodentate coordination mode in 1. Each ttmb links three Ni(II) atoms to form an undulated (3, 4)-connected two-dimensional network. Each undulated two-dimensional network polycatenates other two identical networks, thus giving a rare (2D → 3D) parallel polycatenation network in 1. The ttmb ligand exhibits the cis,trans,trans-conformation and a two-monodentate coordination mode in 2. Each ttmb connects two Ni(II) atoms to construct a two-dimensional (4, 4) network in 2. The thermal stability of compounds 1 and 2 was studied. 相似文献
8.
Hydrothermal reactions of CdCl2·2.5H2O with 3,6-bis(imidazol-1-yl)carbazole (bmcz), 2-amine-1,4-benzenedicarboxylic acid (2-NH2-1,4-H2BDC) or 1,4-naphthalenedicarboxylic acid (1,4-H2NDC) afforded two coordination polymers, [Cd(2-NH2-1,4-BDC)(bmcz)]n (1) and [Cd(1,4-NDC)(bmcz)]n (2). Complexes 1 and 2 were characterized by elemental analysis, IR, powder X-ray diffraction, and single-crystal X-ray diffraction. 1 and 2 are isomorphic and exhibit 3D supermolecular structures. The solid state luminescent and optical properties of 1 and 2 at ambient temperature were also investigated. A comparative study on their photocatalytic activity toward the degradation of methylene blue in polluted water was explored. 相似文献
9.
Three coordination polymers [Cu2(obtz)2(tdc)2]n (1), {[Cu(obtz)2(H2O)2][Cu2(obtz)2(sip)2]5.5H2O}n (2) and [Cu(obtz)(nip)]n(3) were synthesized by the hydrothermal reaction (obtz = 1.2-bis(1,2,4-triazol-1-ylmethyl)benzene, tdc = 2.5-thiophenedicarboxylate, sip = 5-sulfoisophthalate, nip = 5-nitroisophthalate). 1 shows a ladder-like one-dimensional chain with two side arms. 2 is comprised of two distinct and crystallographically independent polymeric motifs. The first motif in 2 is the ladder-like one-dimensional anionic chain with two side arms. The second motif in 2 is the cationic chain. 3 exhibits the intriguing 2-fold interpenetrated network based on the undulated 2D (4.4) network. 1, 2 and 3 are good photocatalysts for the degradation of methyl orange (MO) under UV irradiation. 相似文献
10.
11.
Three coordination polymers, namely, {[Zn(L)(BPY)]·DMF·H2O}n (1), {[Zn(L)(TPY)]·0.5H2BDC·H2O}n (2), {[Cd(L)(H2O)2]·DMF}n (3), have been synthesized based on a rigid linear carboxylate ligand (H2L = 2′,5′-dimethoxy-[1,1′:4′,1″-terphenyl]-4,4″-dicarboxylic acid) and different lengths of pyridine ligands (TPY = 4,3′:5′,4″-terpyridine; BPY = 4,4′-bipyridine). These complexes have been characterized by single crystal X-ray diffraction, infrared spectroscopy, thermogravimetry, elemental analysis, and powder X-ray diffraction measurements. Complex 1 is a 6-connected 3-fold interpenetrating pcu net with point symbol {412 ∙ 63}, 2 and 3 can be simplified as 4-connected sql nets with point symbol {44 ∙ 62}. In addition, their photoluminescent properties are also investigated in detail. 相似文献
12.
13.
《Inorganic chemistry communications》2007,10(6):685-689
Coordination polymers [Zn(imc)(L1)] · H2O, (1, imc = iminodiacetate, L1 = bis(N-imidazolyl)methane) [Zn(hba)2(L2)]2 · EtOH · 3H2O, (2, hba = p-hydroxybenzoate, L2 = bis(N-benzimidazolyl)methane), [Cd(mal)(H2O)(L3)](3, L3 = 1,4-bis(N-imidazolyl)butane, mal = maleate) have been prepared and structurally characterized. Complex 1 consists of hexa-coordinated central Zn ions and exhibits 2D network structure. The Zn atoms in 2 have tetrahedral coordination geometry, and are linked by bis(imidazolyl) ligands into 1D chain structure. The cadmium ions in 3 are hepta-coordinated with pentagonal bipyramidal geometry. Complex 3 displays 2D grid structure. The TGA showed that the coordination polymers are stable up to 200 °C. All the three complexes are emissive at room temperature in their solid state. 相似文献
14.
以4-溴苯甲酸为原料,经过Curtius重排反应制得4-溴苯异氰酸酯,再进一步与3-氨基-1H-1,2,4-三氮唑发生亲核加成反应,合成了目标产物1-(4-溴苯基)-3-(1H-1,2,4-三氮唑-3-基)脲。对产物进行了元素分析,以红外、核磁和紫外光谱确认其结构;生测结果表明该化合物具有一定的植物生长调节活性。 相似文献
15.
Jing Xu Qing Yuan Zheng-Shuai Bai Zhi Su Wei-Yin Sun 《Inorganic chemistry communications》2009,12(1):58-61
Complete and partial deprotonation of new ligand 4-[(1H-imidazol-4-yl)methylamino]benzoic acid (H2L) under hydrothermal conditions lead to the formation of two novel coordination polymers [ZnL]n (1) and [Ag(HL)]n (2). Complex 1 displays a rare three-dimensional (3,6)-connected rtl framework with (4 · 62)2(42 · 610 · 83) topology, while 2 has a one-dimensional chair-like structure including significant argentophilic Ag–Ag interactions. Both 1 and 2 show remarkable thermal stability and complex 1 was found to show strong blue luminescence with emission maxima at 381 nm upon excitation at 347 nm in the solid state at room temperature. 相似文献
16.
《Inorganic chemistry communications》2007,10(5):517-519
Using Zn(II) or Cd(II) salts and the flexible ligand 1,6-bis(1,2,4-triazol-1-yl)hexane(L), a series of novel coordination polymers, {[Zn(L)Cl2]}n (1), [Cd(L)2(SCN)2]n (2), {[M(L)3](ClO4)2}n (M = Zn, 3; Cd, 4), varying from one- to three-dimensionality, have been prepared and their crystal structures determined via X-ray single-crystal diffraction analysis. 1 and 2 are 1D zigzag chain and 2D (4,4) network, respectively. Isostructural compounds 3 and 4 are 3D threefold interpenetrating frameworks. This work suggests that metal/ligand ratio and anion play an important role in the self-assembly of 1D, 2D and 3D coordination polymers based on L. 相似文献
17.
Two coordination polymers containing Ag(I) atoms, {[Ag(3-pia)](PF6)}n (1) and {[Ag(3-pia)2](PF6)}n (2) (3-pia = N-pyridin-3-yl-isonicotinamide), have been synthesized using different solvents, and characterized by single X-ray analyses. In compound 1, Ag(I) atoms are linearly coordinated by two 3-pia ligands, resulting in one-dimensional chains. On the other hand, in compound 2, Ag(I) atoms are tetrahedrally coordinated by four 3-pia ligands, resulting in two-dimensional sheets. 相似文献
18.
《Inorganic chemistry communications》2007,10(7):829-832
Lanthanide coordination polymers with the formula [Ln2(C2O4)3(H2O)6]n (1) (Ln = Nd, 1) and [Ln2(C2O4)3(pythioH)2(H2O)2]n (Ln = Eu 2; Dy 3; Er 4) pythio = 4-pyridinethiolate) were synthesized by treating LnIII nitrates with (4-pyridylthio)acetic acid under hydrothermal conditions. Single-crystal X-ray diffraction studies indicate that these lanthanide coordination polymers consist of extended oxalate-bridged two-dimensional layer structure. Interestingly, in situ C–S bond cleavage occurred and (4-pyridylthio)acetic acid was transformed into 4-pyridinethiolate and oxalate. The complexes 2 and 3 display strong fluorescent emission in the solid state at room temperature. 相似文献
19.
Biao Liu Yong-Cai Qiu Guo Peng Li Ma Li-Ming Jin Jin-Biao Cai Hong Deng 《Inorganic chemistry communications》2009,12(12):1200-1203
Two new d10 coordination polymers, Zn(Beta)2 (1) and Cd2(Beta)3Cl(H2O) (2) (Hbeta = 5-benzyl-tetrazole) have been synthesized by the in situ [3 + 2] cycloaddition reaction of 5-benzylacetonitrile, sodium azide and MCl2 [M = Zn (1); M = Cd (2)] under hydrothermal condition. Complex 1 is a coordination polymer comprised of numerous mildly undulated two-dimensional (2D) layers with a (4, 4) topological network; while complex 2 is a 3D coordination framework constructed from the interconnection of various helical chains through cadmium–chlorine bridges. Furthermore, the luminescence properties of two complexes have been investigated. 相似文献
20.
对 2′,4′-二氟 -2 -(1 H -1 ,2 ,4-三氮唑 -1 -)苯乙烯的合成进行了研究。以间二氟苯、乙酰氯、无水三氯化铝、三氮唑等为主要原料 ,经五步反应合成了该化合物 ,合成路线中所涉及的反应均为经典反应 ,易于工业化生产。该化合物为未经文献报道的新化合物。 相似文献