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1.
Four Transition Metal Coordination Polymers based on an Aromatic Multi‐carboxylic Acid as Ligand: Syntheses,Crystal Structures,and Fluorescent/Magnetic Properties 下载免费PDF全文
Four compounds, namely, [Zn(H2L)2 · 4H2O] ( 1 ), [Cu(HL) · (H2O)] · H2O ( 2 ), [Ni3L2(bpy)2 · 12H2O] · 4H2O ( 3 ), and [Co3L2(bpy)2 · 12H2O] · 4H2O ( 4 ) [H3L = 4, 4′‐[(5‐carboxy‐1, 3‐phenylene)bis(oxy)]dibenzoic acid], were synthesized under solvothermal conditions by employing a semi‐rigid aromatic multi‐carboxylic acid ligand (H3L) and ancillary nitrogen ligand (bpy = 4, 4′‐bipyridine). X‐ray diffraction studies revealed that complexes 1 , 3 , and 4 show zero‐dimensional (0D) structures, which were further extended to distinct 3D supramolecular nets by extensive hydrogen‐bond interactions. However, in compound 2 , 1D chains of square‐shaped pores were linked together by HL2– ligands to generate a 2D porous layer along the ac plane. Comparison of the structures indicated that not only the conformation of the functional ligand, but also the ancillary ligand helped in structural determination of the compounds. Compound 1 exhibited solid fluorescence emission originating from an intraligand π→π* transition. Magnetic susceptibility measurements demonstrated that compound 2 exhibited antiferromagnetic coupling between adjacent copper(II) ions, with the corresponding J values of –141.84 cm–1. Furthermore, the thermal behaviors of the complexes 1 – 4 were studied by thermogravimetric analysis. 相似文献
2.
Feng Guo Dr. 《无机化学与普通化学杂志》2010,636(5):857-860
Two new coordination polymers [Co2(pbc)4(H2O)]n ( 1 ) and [Mn(pbc)2] ( 2 ) (Hpbc = 4‐pyrid‐3‐ylbenzoic acid) were obtained by hydrothermal reaction and characterized by elemental analysis, IR spectroscopy, and single‐crystal X‐ray diffraction. Compound 1 features a 3D network with a four‐connected 66 net constructed from secondary building units of dinuclear cobalt. Compound 2 exhibits a six‐connected 412 · 63 topology based on dinuclear manganese. 相似文献
3.
Xingye Gu Wei Lv Yangyang Hui Xiao Liu Minghui Wu Yan Yang Shixiong She 《无机化学与普通化学杂志》2019,645(8):663-668
The zinc(II) compound, [Zn3(HL)6]n ( 1 ) (H2L = 3‐hydroxypyridine‐2‐carboxylic acid) was synthesized by a solvothermal reaction of Zn(NO3)2 · 6H2O and 3‐hydroxypyridine‐2‐carboxylic acid as raw materials. The structure of complex 1 was determined by single‐crystal X‐ray diffraction analysis and further characterized by elemental analysis, Fourier transform infrared spectroscopy, thermogravimetric analysis, as well as powder X‐ray diffraction. X‐ray structure analysis demonstrates that the complex crystallizes in the monoclinic system, space group P21/n. There are three zinc ions in the asymmetric unit, which are either five‐coordinate or six‐coordinate. The asymmetric units are further bridged by the carboxylate of the organic ligands, featuring a 2D framework. The solid state diffuse‐reflectance UV/Vis spectra reveals that complex 1 has semiconducting nature with the energy bandgap (Eg) estimated to be 3.11 eV. The photocatalytic properties of complex 1 in degradation of organic dyes were further investigated. Results showed that the complex could degrade 54 % of the dye methylene blue solution within 120 min under UV irradiation light and reused for five times without the decline of the photocatalytic activity. 相似文献
4.
Solvothermal Syntheses,Crystal Structures,and Luminescent Properties of Two Coordination Polymers with Different Interpenetrated Diamond Topology 下载免费PDF全文
Xiaoqi Deng 《无机化学与普通化学杂志》2015,641(7):1269-1273
Two coordination polymers, namely, {[Zn(bpea) (bmp)] · H2O}n ( 1 ) and {[Ni(bpea)(bimb)] · DMF}n ( 2 ) [H2bpea = biphenylethene‐4,4′‐dicarboxylate, bmp = 1,4‐bis(2‐methylimidazol‐3‐ium‐1‐yl)biphenyl and bimb = 1,4‐bis(1‐imidazol‐yl)‐2,5‐dimethyl benzene], were synthesized under solvothermal conditions with mixed organic ligands. Single crystal X‐ray diffraction reveals that complex 1 features a three‐dimensional (3D) structure with a sixfold interpenetrating dia net. Complex 2 shows a 3D fivefold interpenetrating dia topology. Furthermore, the solid state luminescent properties of complexes 1 and 2 were investigated at room temperature. 相似文献
5.
Synthesis,Crystal Structures,and Thermal Analyses of Copper(II) and Manganese(II) Mixed‐Ligand Coordination Polymers Constructed from Benzimidazole‐5, 6‐dicarboxylic Acid and N‐Donor Ligands 下载免费PDF全文
Yongli Wang Zhen Wei Lili Geng Xiaoqian Yang Xiaoying An Siyu Liang 《无机化学与普通化学杂志》2015,641(11):1964-1968
The coordination polymers, {[Cu(Hbidc)(2, 2′‐bpy)(H2O)] · 2H2O}n ( 1 ) and {[Mn(Hbidc)(2, 2′‐bpy) (H2O)2] · 2H2O}n ( 2 ) (H3bidc = benzimidazole‐5, 6‐dicarboxylic acid, 2, 2′‐bpy = 2, 2′‐bipyridine), were synthesized in solution and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis (TGA), and single‐crystal X‐ray diffraction. Complexes 1 and 2 consist of different 1D chain structures. In both compounds, 2, 2′‐bpy is chelating in a bidentate manner, whereas the Hbidc ligands in complexes 1 and 2 display chelating‐bridging tridentate and bridging bidentate coordination modes. The two complexes are further extended into 3D supramolecular structures through O–H ··· O and N–H ··· O hydrogen bonds. The thermal stabilities of complexes 1 and 2 were studied by thermogravimetric analyses (TGA). 相似文献
6.
Five new coordination polymers Cu(phen)(H2O)(phth)·CH3OH(1), [Cu(2,2'-bipy)(H2O)](phth)·3.5H2O(2), Zn(phen)(phth)(H2O)·1.125H2O(3) and [M(4,4'-bipy)(H2O)2](phth)·2H2O[M=Zn(4), Mn(5)](H2phth=phthalic acid, bipy=bipyridine, phen=1,10-phenanthroline) have been synthesized from the amino acid derivatives(phthalyl-l- valine, H2L) and structurally characterized. H2L was hydrolyzed into phth2– group during the reaction, but the strucure feature was different from that of the complex directly synthesized from H2phth in the reported literature, revealing that H2L played an important role in composing the novel compounds. Compounds 1, 2 and 3 are all 1D chains, but the differences are that compound 1 is further hydrogen-bonded into 2D networks, and compound 2 is further extended into 3D supramolecular network through π-π stacking and hydrogen-bonding interactions. However, compound 3 is a 1D helix chain structure and further links into 2D networks through π-π stacking. Compounds 4 and 5 are isostructural and exhibit the same 2D layers, which are further connected by hydrogen-bonding interactions to form 3D supramolecular network. Antiferromagnetic superexchange was observed for compounds 1, 2 and 5. 相似文献
7.
Yu Xian Shu Yun Niu Prof. Jing Jin Li Ping Sun Guang Di Yang Ling Ye 《无机化学与普通化学杂志》2007,633(8):1274-1278
Three cadmium(II) coordination polymers [Cd(NA)2(H2O)2]n ( 1 ), {[Cd(NA)(phen)(NO3)]·(H2O)1/2}n ( 2 ), {[Cd(NA)(CH3C6H4COO)(H2O)2]·(CH3C6H4COOH)}n ( 3 ) (HNA = nicotinic acid, phen = 1, 10‐phenanthroline) have been synthesized by hydrothermal method. Their single‐crystal structures were determined by X‐ray diffractometry. The absorption, excitation and emission spectra were investigated and all the complexes emit strong fluorescence: λemmax = 544 nm (λex = 492 nm), 1 ; λemmax = 466 nm (λex = 393 nm), 2 ; λemmax = 430 nm (λex = 313 nm), 3 . At room temperature in the solid state the fluorescence lifetimes of the complexes were investigated and the relationships between the spectra were discussed as well as the connections of luminescence and crystal structures. 相似文献
8.
Jing Wang Qiao‐Hong Bao Huai‐Ming Hu Bin Liu Qing Chen Zhen‐Hua Yang Gang‐Lin Xue 《无机化学与普通化学杂志》2014,640(1):184-188
Two coordination polymers, [Co2(Hcpip)2(phth)]n · 3n(H2O) ( 1 ) and [Mn2(Hcpip)2(phth)]n ( 2 ), {H2cpip = 2‐(2‐carboxyphenyl)imidazo[4,5‐f](1,10)‐ phenanthroline, H2phth = phthalic acid}, were hydrothermally synthesized and characterized by elemental analysis, IR spectroscopy, and single‐crystal X‐ray diffraction. Complex 1 is a 1D chain, in which the dinuclear [Co2(Hcpip)2]2+ units are linked through (phth)2– anions. Complex 2 is a 2D layer structure, which is constructed from the 1D chains bridged by (phth)2– anions. The magnetic properties of 1 and 2 show that the weak ferromagnetic interactions occurred between CoII ions in 1 and a weak antiferromagnetic interactions exist between MnII ions in 2 . These two complexes have good thermal stabilities. 相似文献
9.
Metal Ion Induced Assembly of Two Coordination Polymers with Different Topological Nets: Syntheses,Crystal Structures,and Luminescent Properties 下载免费PDF全文
The coordination polymers [Zn2(NDA)(HNDA)2(IPT)2]n ( 1 ) and [Mn(NDA)(IPT)]n ( 2 ) [H2NDA = naphthalene‐1,4‐dicarboxylic acid and IPT = 4′‐(4‐(1H‐imidazol‐1‐yl)phenyl)‐4,2′:6′,4′′‐terpyridine] were synthesized under hydrothermal conditions and characterized by single‐crystal X‐ray diffraction. Complex 1 features a one‐dimensional ladder‐like chain, whereas complex 2 shows a three‐dimensional CdS topology. The different coordination modes for organic ligands and topological nets for complexes 1 and 2 are mainly related with the metal ions. 相似文献
10.
The complexes [Co(L1)(mpy)] ( 1 ), [Ni(L1)(mpy)] ( 2 ), [Co(L1)(tbpy)] · 2H2O ( 3 ), [Ni2(L1)2(tbpy)2] · 5H2O ( 4 ), [Mn2(L1)2(tbpy)2] · 3H2O ( 5 ), [Mn(L1)(biim‐3)] ( 6 ), [Ni2(L1)2(btb)2(H2O)] · 2H2O ( 7 ), [Cu(L2)(mpy)] · 7H2O ( 8 ), [Co(L2)(tbpy)(H2O)] ( 9 ), [Ni(L2)(tbpy)(H2O)] · H2O ( 10 ), [Cu(L2)(bib)] · 2H2O ( 11 ), and [Cu(L2)(btb)] · 2H2O ( 12 ) [H2L1 = (3‐carboxyl‐phenyl)‐(4‐(2′‐carboxyl‐phenyl)‐benzyl)ether, H2L2 = 3‐carboxy‐1‐(4′‐carboxybenzyl)‐2‐oxidopyridinium, mpy = 2‐(4‐(4′‐methylphenyl)‐6‐(pyrindin‐2‐yl)pyridin‐2‐yl)pyridine), tbpy = 2‐(4‐(4′‐tert‐butylphenyl)‐6‐(pyrindin‐2‐yl)pyridin‐2‐yl)pyridine), biim‐3 = 1,3‐bis(imidazol‐1′‐yl)propane, btb = 1,4‐bis(1,2,4‐triazol‐1‐ylmethyl)benzene, bib = 1,4‐bis(imidazol‐1′‐ylmethyl)benzene] were synthesized. Compounds 1 – 6 have similar 1D chain structures, which are further linked by π–π interactions to generate supramolecular double chains for 1 and 2 , and supramolecular layers for 3 – 6 . Compound 7 displays a 3D 6‐connected framework with (44 · 611) topology. Compound 8 features a monomolecular structure, which is further linked by hydrogen bonds between the lattice water molecules and carboxylate oxygen atoms of L2 anions to form a 2D supramolecular layer. The monomolecular structures of 9 and 10 are connected by hydrogen bonds and π–π interactions simultaneously to generate supramolecular layers. Compounds 11 and 12 show layer structures. 相似文献
11.
Two new cobalt(II) coordination polymers, [Co(PDCO)(H2O)2]n ( 1 ) and [Co(PDCO)(bix)(2H2O)2·H2O]n ( 2 ) ( PDCO= pyridine‐2,6‐dicarboxylic acid N‐oxide, bix = 1,4‐bis(imidazol‐1‐ylmethyl)‐benzene) have been synthesized under hydrothermal conditions. Single‐crystal X‐ray analyses show that compound 1 is a 1D helical chainlike structure with 41 screw axes parallel to the crystallographic c‐axis and interchain hydrogen‐bonding interactions further result in a 3D framework; for compound 2 , each bix ligand connects two Co1 atoms (or two Co2 atoms) to give a zigzag chain structure and these 1D chains are connected by offset face‐to‐face π···π and hydrogen bond interactions to generate a 3D architecture. The thermogravimetric analyses were investigated for 1 and 2 . The determination of variable temperature magnetic susceptibilities indicates an antiferromagnetic interaction between the metal atoms for 1 and 2 . 相似文献
12.
Lian‐Jie Li Lei Chen Dong‐Ying Du Dr. Xin‐Long Wang Kui‐Zhan Shao Dr. Zhong‐Min Su 《无机化学与普通化学杂志》2011,637(10):1419-1422
Two coordination polymers, namely [Zn(L)Cl] ( 1 ) and [Zn(L)2] ( 2 ) [L = 4‐(pyridin‐4‐ylmethoxy)benzolic acid] were synthesized under hydrothermal conditions and characterized by single‐crystal X‐ray diffraction analyses, powder X‐ray diffraction, and thermogravimetric analysis. Compounds 1 and 2 have a two‐dimensional square‐shaped structure (the dimensions are 15.43 × 15.43 Å for 1 and 12.064 × 15.017 Å for 2 ) with (44 · 62) topology. Moreover, compounds 1 and 2 exhibit a 3D supramolecular structure made up by strong π–π interactions from the adjacent layers. Furthermore, compounds 1 and 2 show good fluorescence properties in the solid state at room temperature. 相似文献
13.
Modular Construction,Structures, and Magnetic Properties of Two Manganese Coordination Polymers Based on 3,5‐Bis(2–carboxylphenoxy)benzoic Acid 下载免费PDF全文
Two manganese(II) coordination polymers, namely, [Mn1.5(BCB)(bpy)1.5(H2O)]n ( 1 ), and [Mn(HBCB)(bibp)2(H2O)] ( 2 ), were assembled from the mixed ligands of the flexible tripodal ligand of 3,5‐bis(2‐carboxylphenoxy)benzoic acid (H3BCB) and two rigid N‐donors [bpy = 4,4′‐bipyridine, and bibp = 4,4′‐bis(imidazolyl)biphenyl]. Their structures were determined by single‐crystal X‐ray diffraction analyses and further characterized by elemental analyses (EA), IR spectra, powder X‐ray diffraction (PXRD), and thermogravimetric (TG) analyses. Structural analysis reveals that complex 1 is a 3D (3,4,6)‐connected {5 · 62}2{56 · 64 · 7 · 82 · 92}{64 · 8 · 9} net based on two kinds of inorganic nodes of dinuclear {Mn2(COO)2} SBUs and Mn(2) ions. Complex 2 is a hydrogen bonds based 3D supramolecule with 6‐connected {412 · 63}‐ pcu net. Besides, the variable‐temperature susceptibilities of 1 and 2 were investigated. 相似文献
14.
Two cadmium(II) coordination polymers, namely, [Cd3(m‐phth)2(atz)2]n ( 1 ) (m‐phth = m‐phthalate and atz = 3‐amino‐1,2,4‐triazolate) and [Cd(atphth)(H2O)]n ( 2 ) (atphth = 2‐aminoterephthalate), were synthesized and structurally characterized. Compound 1 features a three‐dimensional (3D) pillared framework based on two‐dimensional (2D) cadmium‐benzenedicarboxylate ladders pillared by the triazolate ligands. Compound 2 has a 3D framework constructed from 2D cadmium‐benzenedicarboxylate layers, which are further linked by Cd–N bonds between the cadmium ions and amino groups of the atphth2– ligands of the adjacent layers to form the final 3D structure. Compounds 1 and 2 exhibit solid‐state photoluminescence with emission maxima at 448 and 470 nm, respectively. 相似文献
15.
Lei Chen Dr. Kui‐Zhan Shao Gang Yuan Guang‐Sheng Yang Hong‐Ying Zang Guang‐Juan Xu Xin‐Long Wang Dr. K.‐ Zhong‐Min Su 《无机化学与普通化学杂志》2011,637(10):1414-1418
Two coordination polymers, namely Zn(HL)(4,4′‐bpy)1.5 ( 1 ), [Zn3(L)2(BIMB)2] · 5H2O ( 2 ) [H3L = 5‐(4‐carboxybenzyloxy)isophthalic acid, 4,4′‐bpy = 4,4′‐bipyridine, BIMB = 1,4‐bis(1H‐imidazol‐1‐yl)benzene] were synthesized under hydrothermal conditions. Their structures are determined by single‐crystal X‐ray diffraction analyses and further characterized by elemental analyses, IR spectroscopy, and thermogravimetric (TG) analyses. Complex 1 features a 2D 4‐connected network. Complex 2 is a 3D twofold interpenetrating (3,4,6)‐connected net. In addition, the luminescent properties for 1 and 2 were studied in the solid state at room temperature. 相似文献
16.
Dr. Ya‐Guang Sun Tian‐Yi Lv Xin Gao Gang Xiong Di Sun Ling‐Ling He Zhen‐He Xu Shu‐Ju Wang Fu Ding 《无机化学与普通化学杂志》2012,638(14):2365-2369
Three new lanthanide‐organic coordination polymers, {[Ln2(bpdc)2(H2O)6(NO3)] · NO3} [Ln = La ( 1 ), Ce ( 2 ), Pr ( 3 )] (H2bpdc = 2, 2′‐bipyridine‐6, 6′‐dicarboxylic acid) were synthesized under hydrothermal conditions and structurally characterized by elemental analysis, IR spectroscopy as well as single‐crystal and powder X‐ray diffraction. Single‐crystal X‐ray diffraction analysis revealed that compounds 1 – 3 are isostructural, composed of two dimensional honeycomb network linked by bpdc ligands. The magnetic property of compound 3 was investigated. 相似文献
17.
Prof. Dr. Gui‐Ling Wang Yong‐Mei Tian Dr. Wen‐Bin Sun Bing‐Lu Han Mang‐Fei Yu Hui Xu Ting Gao 《无机化学与普通化学杂志》2011,637(11):1616-1621
The salen‐type ligand H2L [H2L = N,N′‐bis(salicylidene)‐1,2‐cyclohexanediamine] was utilized for the synthesis of two lanthanide(III) coordination polymers [LnH2L(NO3)3MeOH]n [Ln = Eu ( 1 ) and Ln = Lu ( 2 )]. The single‐crystal X‐ray diffraction analyses of 1 and 2 revealed that they are isomorphous and exhibit one‐dimension neutral structure, in which H2L effectively functions as a bridging ligand and give rise to a chain‐like polymer. The luminescent properties of polymers in solid state and in solution were investigated and 1 exhibits typical red luminescence of EuIII ions in solid state and dichloromethane solution and 2 emits the ligand‐centered blue luminescence. The energy transfer mechanisms in these luminescent lanthanide polymers were described through calculation of the lowest triplet level of ligand H2L. 相似文献
18.
Syntheses,Crystal Structures,and Photoluminescence of Zinc(II) and Cobalt(II) Coordination Polymers Based on Semiflexible 1,4‐Bis(4‐phenoxy)benzenedicarboxylate 下载免费PDF全文
Hydrothermal reactions of Co(NO3)2 · 6H2O and Zn(NO3)2 · 6H2O with 1,4‐bis(4‐phenoxy)benzenedicarboxylic acid (H2bcpb) resulted in the formation of the coordination polymers [Zn(bcpb)(Py)]n ( 1 ), and [Co(bcpb)(Py)2]n ( 2 ), respectively. Their structures were studied by single‐crystal and powder X‐ray diffraction methods and further characterized by IR spectroscopy, elemental analyses, and thermogravimetric analyses (TGA). Single X‐ray diffraction analyses revealed that complex 1 has a 1D loop chain. Each repeated unit contains two carboxylate ligands and two SBUs (secondary building units), whereas complex 2 has a 2D 4‐connected sql sheet with point symbol (44.62). The complexes are further expanded to 3D supramolecular structures through non‐covalent bonding interactions. Besides, photoluminescent property of complex 1 was also investigated in the solid state at room temperature. 相似文献
19.
Four new complexes, [Zn(btca)(2,2′‐bpy)] ( 1 ), [Mn(btca)(2,2′‐bpy)] ( 2 ), [Co(btca)(phen)] ( 3 ), and [Cu(btca)(phen)] ( 4 ), (H2btca=benzotriazole‐5‐carboxylic acid, 2,2′‐bpy=2,2′‐bipyridine, phen=1,10‐phenanthroline), were successfully synthesized and characterized by elemental analysis, single crystal X‐ray diffraction, and IR spectroscopy. Complexes 1 – 4 crystallize in the orthorhombic system with space group of Pbca and show similar 2D layers, which are interlinked to supramolecular networks by π‐π stacking interactions. Furthermore, TGA curves show that complexes 1 – 4 have good thermal stability. Solid‐state fluorescent property of complex 1 was also investigated at room temperature. 相似文献
20.
Two coordination polymers {[Co3L3(Me2NH)2]·(Me2NH)}n(1) and [CuL(bpy)]n(2)(L=2,2'-biphenyl dicarboxylate ion, bpy=4,4'-bipyridine) were obtained and characterized. Compound 1 was synthesised via solvothermal method, with the L ligands adopting syn-syn-μ2-η1:η1- and μ2-η2-coordination modes and Co(II) centers being linked to form a 1D coordination chain with trinuclear Co3 cluster as sub-units. Compound 2 was synthesized at room temperature, with the L ligand chelating the Cu(II) centers to form a 1D chain, which was further linked by the auxiliary 4,4'-bpy ligand to form a 3D coordination network. The results of variable temperature susceptibility studies reveal that there were ferromagnetic and antiferromagnetic interactions between the paramagnetic metal centers in compounds 1 and 2, respectively. 相似文献