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1.
Güneş Süheyla Kürkçüoğlu Tuncer Hökelek Mehran Aksel Okan Zafer Yeşilel Hakan Dal 《Journal of Inorganic and Organometallic Polymers and Materials》2011,21(3):602-610
Three new complexes [M(deten)2Ni(μ-CN)2(CN)2]
n
(M = Ni, Cu and Cd, deten = N,N-diethylethylenediamine) have been synthesized and characterized by chemical, thermal analysis, FT-IR and Raman spectroscopies.
The crystal structure of the Cd complex has been determined by X-ray single crystal diffraction. Structural study reveals
that the Ni2+ and Cd2+ ions are located on inversion centers, and adopt slightly distorted square-planar and octahedral geometries, respectively.
In the crystal structure, the intermolecular N–H⋯N hydrogen bonds link the polymeric chains into a two dimensional network.
Vibrational spectral data indicate the presence of two ν(C≡N) for complexes can be assigned to the terminal and bridging cyanides.
The decomposition reaction take places in the temperature range 30–1000 °C in the static air atmosphere. 相似文献
2.
Samir S. Kandil Naeema H.M. Yarkandi Suhair M.S. Jambi 《Journal of Sulfur Chemistry》2014,35(1):98-105
Coordination complexes of formula [ML2], [CoL3], [Pd(HL)Cl2], [CuLCl(H2O)] and [CuL2(H2O)2] {L=anion of N-ethyl-N′-(4′-methylthiazol-2′-yl)thiourea; M=PtII, PdII or NiII} were prepared and characterized by elemental analyses, magnetic susceptibilities, and by IR, NMR, electronic and mass spectral measurements. 相似文献
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为实现混合溶液中Ni(II)与Co(II)的分离,设计了电渗析与萃取耦合的集成分离技术,借助自行设计的设备,在选P507为萃取剂后,考察了电流密度、酸用量、体积流量、萃取剂皂化率、原料与萃取剂摩尔比、萃取方式等对分离效果的影响.结果表明:在实验范围内,电流密度3.8 mA/cm2,酸用量为理论用量的1.3倍,体积流量60 L/h、皂化率60%,原料与萃取剂摩尔比1:1.7为优取的操作条件;料液循环重复萃取,能显著提高分离效果.由此表明,电渗析与萃取耦合的分离技术,可分离混合体系中的Ni(II)、Co(II),且无需溶剂参与. 相似文献
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《溶剂提取与离子交换》2013,31(6):1059-1071
The extraction behaviour of cobalt(II) and nickel(II) from sulfate solutions with bis(2-ethylhexyl) phosphinic acid (PIA-8) in toluene has been studied. Quantitative extraction of Co(II) was observed at pH 5.0–5.9 while that of Ni(II) at pH 6.8–7.0 with 0.03 M PIA-8 in toluene. The difference in pH0.5 for Co(II) and Ni(II) was 1.9. The stoichiometry of the extracted species were determined by slope analysis method. The extraction reaction proceeds by cation exchange mechanism and the extracted species were Co · R2(HR)2 and Ni · R2 · 2(HR)2. Temperature dependance of the extraction equilibrium constants were determined to estimate the apparent thermodynamic functions (ΔG, ΔS and ΔH). The method was used for separation of cobalt(II) and nickel(II). Cobalt(II) was separated from nickel even at 1:20 (Co:Ni) ratio. The separation of cobalt(II) from nickel(II) was favoured with the increase in temperature. 相似文献
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传统的净化方法难以实现低成本、高效、选择性净化含磷化氢尾气,这限制了含磷化氢尾气的资源化技术的实现.文章利用自主筛选的催化剂,在实验室进行了Pd2 浓度、Cu2 浓度、反应温度、混和气氧体积分数、磷化氢质量浓度、混合气流速等因素对Pd(II)-Cu(II)水溶液净化含磷化氢气体影响的研究.实验结果表明,Pd(II)-Cu(II)催化剂在低温(22-73 ℃)、常压下(100 kPa)对质量浓度为850 mg/m3磷化氢气体净化效率可高达100%.并且催化剂稳定性随催化氧化反应温度的升高而降低,随被净化混和气中氧体积分数、吸收液中Pd2 浓度及Cu2 浓度增大而增强;催化氧化净化效率随混和气中磷化氢质量浓度升高而降低,随被净化的混和气流速降低而升高. 相似文献
9.
Ai-Hong Yang Hong Zhang Ping Yin Hong-Ling Gao Jian-Zhong Cui Bin Ding 《Inorganic chemistry communications》2010,13(11):1304-1308
Four novel 3D coordination polymers, {[K3Cu2(H0.5pdtc)2 (H2O)6]·(H2O)2}n (1), {[trans-K2Mn3(pdtc)2 (H2O)11]·H2O}n (2), {[trans-K2Mn3(pdtc)2 (H2O)10]·H2O}n (3) and {[cis-K2Cu2Mn(pdtc)2 (H2O)10]·H2O}n (4), were synthesized by the self-assembly of potassium pyridine-2,3,5,6-tetracarboxylate (K4pdtc) with metal salts. All of them contain infinite 1D stepwise chain. Notably, 2–4 have 2D network structures depending on the trans- and cis- hexacoordinated Mn(II) acting as connecters between the chains. Then, they further assemble into 3D or twin-plane structures by K(I) ions. 4 is the first Cu/Mn/K heterotrimetallic complex with H4pdtc. The (H2O)6 clusters in 1 arranged stepwise along the complex chains owing to the host chains' template effect. The variable–temperature magnetic measurements reveal that weak antiferromagnetic interactions exist in complexes 1 and 4. 相似文献
10.
Ting Chen Yang Zou Chaoyong Yu Xiaojun Zhou Yuanyuan Li 《Journal of Inorganic and Organometallic Polymers and Materials》2012,22(5):1200-1205
A heteronuclear complex of [Mn(H2O)4(CuL)2]2·4H2O 1 (H2L = 2-hydrogen benzaldehydeneglycylglycine) has been synthesized and characterized by IR spectra, TGA, and single crystal X-ray diffraction analysis. The molecule consists of one $\text{Mn}{(\text{H}_{2}\text{O})_{4}}^{2+}$ Mn(H2O) 4 2+ group and two symmetric groups [CuL]? which are connected by carboxylate oxygen atoms. A discrete water hexamer composed of a planar tetrameric water ring and two pendent water molecules acts as a ‘glue’ to assemble adjacent [CuL]? into a two-dimensional structure. 相似文献
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《Inorganic chemistry communications》2005,8(6):500-502
The photochemical oxidative addition of 1 equiv. of GeCl4 to [W(CO)4(η2,η2-1,5-C8H12)] affords the very labile seven-coordinate complex of tungsten(II) [WCl(GeCl3)(CO)3(η2,η2-1,5-C8H12)] (1). The structure of compound 1 has been established by IR and 1H NMR spectroscopic methods. A very labile 1,5-cyclooctadiene ligand of 1 in dichloromethane/acetonitrile solution leaves the coordination sphere of tungsten to give a dimeric seven-coordinate compound of tungsten(II) [(μ-Cl)2W2(GeCl3)2(CO)6(NCMe)2] (2). The crystal structure of a new dimeric compound containing W–Ge bonds (2) was determined by X-ray diffraction studies. 相似文献
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《Inorganic chemistry communications》2000,3(6):300-302
[V(NCBH3)2(thf)4], the first cyanohydroborato complex of an early transition metal, has been generated in the system [V(CO)6]−/I2/tolane/Na[NCBH3] in THF. The crystal structure reveals an ideal trans configuration (point group D2h) with about linear CNBH3− units, and without intermolecular (hydrogen bonding) interactions. 相似文献
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《分离科学与技术》2012,47(8):1635-1643
Abstract This investigation examines metal ion adsorption on mesoporous silicate, MCM‐41, synthesized from sodium silicate solution and cethyltrimethylammonium bromide (CTAB). MCM‐41 has potential as an adsorbent material, with a regular hexagonal pore structure, large specific surface area, and large pore volume. The MCM‐41 synthesized for this investigation is characterized using powder X‐ray diffraction and nitrogen adsorption and desorption isotherms data. The adsorption behavior for cadmium(II) and lead(II) onto MCM‐41 was studied by contacting the mesoporous silicate with an aqueous solution of metal salts and acetylacetone. Both Cd2+ and Pb2+ were found to quantitatively adsorb onto MCM‐41. The results of this study suggest that MCM‐41 may have applications in the recovery of toxic metals from waste waters. 相似文献
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《Inorganic chemistry communications》2000,3(5):234-238
The coordination polymer of formula [Pb3BTC2]·H2O (BTC=1,3,5-benzenetricarboxylate) contains 2 different BTC trianions, 3 different Pb cations and 3 different carboxylate coordination modes. 相似文献
15.
Ai-Yin Wang Jie Wang Shokufeh Aghabeygi Jia-Guo Wang Hong-Ping Xiao Ali Mosali 《Journal of Inorganic and Organometallic Polymers and Materials》2011,21(3):700-705
Three new Cu(II), Mn(II), and Zn(II) coordination polymers with 4,4′-bipyridine (4,4′-bipy) and 2-sulfobenzoic acid (2-H2sb) ligands, [M(4,4′-bipy)(2-sb)(H2O)]n, have been synthesized and characterized by IR spectroscopy and elemental analyses. The structures were determined by single-crystal
X-ray crystallography. The structural studies show that the metal atoms have six-coordinate geometry with a distorted octahedral
environment constructed with 4,4′-bipy and 2-sb2− linkers stacked over each other to generate a two-dimension motif. Self-assembly of these compounds in the solid state is
likely caused by coordination and hydrogen-bonds. While polymers containing Zn(II) and Mn(II) have analogous structures, the
Cu(II)-containing nano-porous soft metal–organic framework presents a different structure. 相似文献
16.
Yu Zhou Chaofan Zhong Yan He Lifen Xiao Yuan Liu Hailiang Zhang 《Journal of Inorganic and Organometallic Polymers and Materials》2009,19(3):328-334
Abstract A novel ligand, 2,7-bis[2-(2′-Pyridyl)benzimidazole]- 9,9′-dioctylfluorene (BPDOF) and its polymeric complexes with copper(II)
and zinc(II) were successfully synthesized and characterized by 1H NMR, FT-IR, elemental analysis, UV-vis, conductivity measurements and gel permeation chromatography. The UV–vis absorption,
fluorescence spectra, and thermal properties of these complexes were investigated at room temperature. The experimental results
show that polymeric metal complexes BPDOF-Cu(II) and BPDOF-Zn(II) emit purple/green luminescence at 430 and 509 nm in DMF
solution and emit green luminescence at 495 and 527 nm in the solid state. Thermal properties measurement and analysis show
that they have good thermal stabilities.
Graphical Abstract Synthesis route: 2,7-bis[2-(2′-Pyridyl) benzimidazole]- 9,9′-dioctylfluorene (BPDOF) was synthesized using 2-(2′-Pyridyl)benzimidazole
and 2,7-dibromo-9,9′-dioctylfluorene by Ullmann condensation. Polymeric metal complexes of the corresponding were synthesized
with CuCl2 · 2H2O, ZnCl2.
相似文献
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《Inorganic chemistry communications》2003,6(8):996-1000
The water-soluble RuII acetylacetonato–sulfoxide complexes, cis-Ru(acac)2(DMSO)2 (1) and Ru(acac)2(meso-BESE) (2), were synthesized (BESE=1,2-bis(ethylsulfinyl)ethane=EtS(O)(CH2)2S(O)Et). Both complexes were characterized by 1H and 13C{1H} NMR, UV–Vis, and IR spectroscopies, as well as MS, elemental analysis, solution conductivity, and cyclic voltammetry, while the molecular structure of 2 was determined also by X-ray crystallography. All sulfoxide ligands are S-bonded. The complexes were tested against human breast cancer cells (MDA-MB-435S) using an in vitro MTT assay, a colorimetric determination of cell viability; IC50 values of >2000 and 1500 ± 100 μM were determined for 1 and 2, respectively, while cisplatin exhibits an IC50 value of 30 ± 5 μM. 相似文献
18.
Xiuling Zhang Baoyong Zhu Yulan Song Feng Guo Yongliang Liu 《Journal of Inorganic and Organometallic Polymers and Materials》2011,21(3):711-717
Three new coordination polymers [Cd(L)(4,4′-bipy)0.5]n (1), {[Mn(L)(bpp)]·H2O}n (2) and [Ni(L)(2,2′-bipy)(H2O)2]n(3) [H2L = Benzopenone-2,4′-dicarboxylic acid, 4,4′-bipy = 4,4′-bipy ridine, bpp = 1,3-di(4-pyridyl) propane and 2,2′-bipy = 2,2′-bipyridine]
have been synthesized and structurally characterized by elemental analysis, IR and X-ray diffraction. Single-crystal X-ray
analyses revealed that the H2L ligand acts as a bridge, exhibiting three coordination modes to link metal ion: bidentate chelating, bis-monodentate, monodentate. Compound 1 has 3-connected metal–organic framework with the (63) topology notation; Compounds 2 and 3 are one-dimensional chain structures. The luminescent properties for compound 1 was investigated. 相似文献
19.
Feilong Hu Xianhong Yin Yan Mi Wanshu Li Xinping Tang Zhen Ma 《Inorganic chemistry communications》2010,13(6):720-723
A new copper (II) complex with formula [Cu2(4,4′-bpy)5(H2O)4](ClO4)4(4,4′-bpy)(DMF)2(H2O)2 has been synthesized by reaction of 4,4′-bpyridine (4,4′-bpy) with Cu(ClO4)2. While strong hydrogen bonds play central roles in the formation of the 3D structure, the combined influence of the weak interactions such as C–H?O bonds, anion?π and C–H?π interactions are also evident in the structure. The preliminary investigation on the thermal property of the complex is presented. 相似文献
20.
In this study, we reported an efficient, alternative, and low-cost adsorbent for the efficient removal of Pb(II), Zn(II), Cd(II) and Cu(II) from water. The new hybrid material has been prepared by immobilizing a conjugated system (2Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxybut-2-en-1-one on silica gel previously doped with 3-aminopropyltrimethoxysilane. The formed surface (SiNPz) was perfectly analyzed. Adsorption studies have demonstrated the ability to highlight the surface designed for efficient removal of above toxic metals from aqueous solutions using FAAS. The new material was used for the extraction of metals from natural water and showed efficiency results for toxic heavy metals. 相似文献