共查询到20条相似文献,搜索用时 15 毫秒
1.
《Journal of Coordination Chemistry》2012,65(11):1810-1819
AbstractA new 2D copper(I) coordination polymeric complex has been synthesized from CuI and 1-(1-{4-chlorophenylthio}propan-2-ylthio)-4-chlorobenzene ([(CuI)2{ArSCH2CH(CH3)SAr}2]n, Ar = 4-ClC6H4) and characterized by high resolution mass spectrometry (HRMS) and single crystal X-ray diffraction techniques. The complex has been employed as a suitable catalyst for a solvent-free, one-pot, three-component A3-coupling reaction. A variety of aromatic and aliphatic aldehydes, terminal alkynes and aliphatic cyclic secondary amines have been used to prepare a library of propargylamines using the 2D-Cu complex at significantly low concentration (0.2?mol%). 相似文献
2.
Hassan Keypour Nasibeh Rahpeyma Parisa Arzhangi Majid Rezaeivala Yalcin Elerman Orhan Buyukgungor Laura Valencia 《Polyhedron》2010
Two macrocyclic Schiff base ligands, L1 [1+1] and L2 [2+2], have been obtained in a one-pot cyclocondensation of 1,4-bis(2-formylphenyl)piperazine and 1,3-diaminopropane. Unfortunately, because of the low solubility of both ligands, their separation was unsuccessful. In the direct reaction of these mixed ligands (L1 and L2) and the appropriate metal ions only [CoL1(NO3)]ClO4, [NiL1](ClO4)2, [CuL1](ClO4)2 and [ZnL1(NO3)]ClO4 complexes have been isolated. All the complexes were characterized by elemental analyses, IR, FAB-MS, conductivity measurements and in the case of the [ZnL1(NO3)]ClO4 complex with NMR spectroscopy. 相似文献
3.
在甲醇溶液中,卡巴肼、(4-二乙氨基)水杨醛和二乙酸二丁基锡"一锅法"反应,合成了一个新颖的基于双(4-二乙氨基水杨醛)缩偶氮二甲酰肼(L)的七配位有机锡配合物[Sn(L)(n-butyl)_2]n(T)。经元素分析、IR、(1H,119Sn,13C)NMR和X射线衍射晶体结构表征,T的晶体属单斜晶系C2/c空间群,中心锡周围由双(4-二乙氨基水杨醛)缩偶氮二甲酰肼的O,N配位原子占据赤道位置和2个丁基占据顶端位置形成畸变五角双锥构型。通过烯醇式氧原子的桥联配位作用,T向一维带状无限扩展产生"竹筏状"超分子结构。配合物T在二甲基甲酰胺、四氢呋喃、乙醇、甲醇和甲苯有机溶剂及其有机溶剂-水混合物中具有强荧光发射峰,当含水量的体积分数在0~10%(V/V)时具有良好的聚集荧光增强效应,含水量大于10%(V/V)时发生荧光淬灭。 相似文献
4.
Florian Hastreiter Dr. Eugenia V. Peresypkina Dr. Alexander V. Virovets Prof. Dr. Ruth M. Gschwind Prof. Dr. Manfred Scheer 《Angewandte Chemie (International ed. in English)》2014,53(49):13605-13608
The reaction of [CpBnFe(η5‐P5)] ( 1 ) (CpBn=η5‐C5(CH2Ph)5) with CuI selectively yields a novel spherical supramolecule (CH2Cl2)3.4@[(CpBnFeP5)12{CuI}54(MeCN)1.46] ( 2 ) showing a linkage of the scaffold atoms which is beyond the Fullerene topology. Its extended CuI framework reveals an outer diameter of 3.7 nm—a size that has not been reached before using five‐fold symmetric building blocks. Furthermore, 2 shows a remarkable solubility in CH2Cl2, and NMR spectroscopy reveals that the scaffold of the supramolecule remains intact in solution. In addition, a novel 2D polymer [{CpBnFe(η5‐P5)}2{Cu6(μ‐I)2(μ3‐I)4}]n ( 3 ) with an uncommon structural motif was isolated. Its formation can be avoided by using a large excess of CuI in the reaction with 1 . 相似文献
5.
The reaction of C10H7-1-N(PPh2)2 ( 1 ) with two equivalents of CuI in acetonitrile resulted in the formation of octahedron Cu4I4[ 1 ]2 complex ( 2 ). The crystal structure of 2 showed it adopted a rare octahedral arrangement. The rectangular Cu4 plane is μ4-capped by two of the iodides and is placed in axial positions above and below the Cu4-plane form an octahedron, whereas the other two iodides are bonded to two copper atoms in a μ2-fashion. The luminescence of complex 2 arises from a triplet halide-to-ligand charge transfer (3XLCT) excited state and 3CC (Cu4I4 cluster-centered) excited state are not involved in the luminescence by the rigid bidentate ligand 1 in spite of the short CuI–CuI bond length. Complex 2 was identified and characterized by multinuclear NMR (1H, 13C, 31P NMR) and IR spectroscopy. Crystal structure determinations of 1 and 2 were carried out. 相似文献
6.
Tseng CK Lee CR Han CC Shyu SG 《Chemistry (Weinheim an der Bergstrasse, Germany)》2011,17(9):2716-2723
Complex [Na(phen)3][Cu(NPh2)2] ( 2 ), containing a linear bis(N‐phenylanilide)copper(I) anion and a distorted octahedral tris(1,10‐phenanthroline)sodium counter cation, has been isolated from the catalytic C? N cross‐coupling reaction with the CuI/phen/tBuONa (phen=1,10‐phenanthroline) catalytic system. Complex 2 can react with 4‐iodotoluene to produce 4‐methyl‐N,N‐diphenylaniline ( 3 a ) with 70.6 % yield. In addition, 2 can work as an effective catalyst for C? N coupling under the same reaction conditions, thus indicating that 2 is the intermediate of the catalytic system. Both [Cu(NPh2)2]? and [Cu(NPh2)I]? have been observed by in situ electron ionization mass spectrometry (ESI‐MS) under catalytic reaction conditions, thus confirming that they are intermediates in the reaction. A catalytic cycle has been proposed based on these observations. The molecular structure of 2 has been determined by single‐crystal X‐ray diffraction analysis. 相似文献
7.
A. Müller A. Hildebrand E. Krickemeyer D. Slter H. Bgge A. Armatage 《无机化学与普通化学杂志》1992,614(8):115-120
(PPh4)[(ReO2S2)CuI] and (NEt4)2[ReOS3)Cu3Cl4]: Fixation of the up to now not Isolated Ions [ReO2S2]? and [ReOS3]? Utilizing the Stability of the CuS2(Re) and Cu3S3(Re) Fragments (PPh4)[(ReO2S2)CuI] ( 1 ) and (NEt4)2[ReOS3)Cu3Cl4] ( 2 ) containing the up to now not isolated oxothioperrhenate ions [ReO2S2]? and [ReOS3]? as ligands, have been prepared by the reaction of (NEt4)[ReS4] with PPh3 and CuI in acetone in the presence of (PPh4)I (( 1 )) or with CuCl in CH2Cl2 in the presence of (NEt4)Cl (( 2 )), respectively. 1 and 2 have been characterized by X-ray structure analysis, elemental analysis and spectroscopic studies (IR, UV/Vis). The electronic spectra show bands which can approximately be assigned to interesting low-energy charge-transfer-transitions of the type d(Cu) → d(Re). For crystal data see Inhaltsübersicht. 相似文献
8.
《Journal of Coordination Chemistry》2012,65(19):3498-3515
The triorganotin(IV) complex Ph3Sn(OPhMe-2) (1) has been synthesized by the reaction of Ph3SnCl with NaOPhMe-2, while complexes of composition n-Bu3Sn(OPhMe-2) (2) and Me3Sn(OPhMe-2) (3) (where ?OPhMe-2 = ?OC6H4CH3-2) have been obtained from the reaction of n-Bu3SnCl and Me3SnCl with 2-methylphenol in the presence of triethylamine in carbon tetrachloride. The complexes have been characterized by elemental analyses, molar conductance measurements, molecular weight determination, and IR, 1H NMR, 13C NMR, and mass spectral studies. Thermal behavior of the complexes has been studied by TG and DTA techniques. The organotin(IV) complexes have also been screened for antibacterial activity and exhibit appreciable activity. The reactions of the complexes with 3- and 4-cyanopyridines yielded 1 : 1 adducts authenticated by physicochemical and IR and 1H NMR spectral data. 相似文献
9.
A convenient one-pot synthesis of aryl(hetaryl)acetylenes by cross-coupling of aryl(hetaryl)iodides with acetylene in presence of PdCl2(Ph3)2, CuI and K2CO3 in DMF has been developed. 相似文献
10.
11.
S. Santhi Sudha Ch. Syama Sundar N. Bakthavatchala Reddy K. Uma Maheswara Rao S. H. Jaya Prakash C. Suresh Reddy 《Phosphorus, sulfur, and silicon and the related elements》2013,188(10):1402-1411
Abstract A simple, efficient, and environmentally benign methodology has been accomplished for the synthesis of α-aminophosphonates by one-pot three-component reaction of ethyl-2-amino-α-(methoxy-imino)-4-thiazoleacetate, aldehydes, and diethylphosphite by using Amberlyst-15 as catalyst at room temperature under solvent-free conditions. Their chemical structures were characterized by infrared (IR), NMR (1H, 13C & 31P), mass spectral, and elemental analysis. All the title compounds were screened for radical-scavenging activity by 1,1-diphenyl-2-picrylhydrazyl (DPPH), nitic oxide (NO), and hydrogen peroxide (H2O2) methods. Supplementary materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements for the following free supplemental files: Additional text and figures. 相似文献
12.
《Journal of Coordination Chemistry》2012,65(3):425-432
Abstract A novel dioxime, 1,2 dihydroxyimino-3,7-diaza-9,10-O-benzaloctane (LH2) was prepared by reaction of l,2-0-benzylidene-4-aza-7-aminoheptane and anti-phenylchloroglyoxime in absolute ethanol. Mononuclear complexes with a metal-ligand ratio of 1:2 were prepared with Co(II), Cu(II) and Ni(II). To elucidate the structures of the ligand and complexes, elemental analyses, IR, 1H NMR and 13C NMR spectral data and magnetic susceptibility measurements have been examined. 相似文献
13.
Synthesis and characterization of new (pyrazolyl)aryl phosphinite PCN pincer palladium(II) complexes
An-Ting Hou Yan-Jing Liu Xin-Qi Hao Jun-Fang Gong Mao-Ping Song 《Journal of organometallic chemistry》2011,696(15-16):2857-2862
Two unsymmetrical PCN pincer Pd(II) complexes 3a–3b which are based on (pyrazolyl)aryl phosphinite ligands and contain two fused six-membered palladacycles have been synthesized from 3-(3,5-dimethylpyrazol-1-ylmethyl)benzyl alcohol (2) by one-pot phosphorylation/palladation reaction via C–H bond activation of the related ligands. The pyrazole-coordinated phosphine-free Pd(II) complex (4) was also isolated in the preparation of pincer complex 3a. The new complexes were characterized by elemental analysis, 1H NMR, 13C NMR, 31P {1H} NMR (for pincer complexes) and IR spectra. And the molecular structures of 3b and 4 have been further determined by X-ray single-crystal diffraction. The pincer Pd complexes 3a and 3b exhibited rather low activity in the allylation of benzaldehyde. 相似文献
14.
A novel bisperoxovanadium complex, [NH4][VO(O2)2(ima)] (1) (ima = imidazole-4-carboxamide), was synthesized by the reaction of NH4VO3 and ima in the presence of H2O2, and the structure was characterized by single-crystal X-ray technology. The adjacent [NH4][VO(O2)2(ima)] monomers further constructed a 3-D supramolecular framework through intra- and intermolecular hydrogen bonding interactions. The composition of the title complex solution was explored using a combination of multinuclear (1H, 13C and 51V) magnetic resonance, heteronuclear single quantum coherence (HSQC), and variable temperature NMR in a 0.15 mol L?1 NaCl/D2O solution that mimics physiological conditions. According to NMR experimental results, a pair of isomers (Isomers A and B) are observed in aqueous solution, which are attributed to different types of coordination modes between the metal center and the ligands; Isomer B (the main product) has the same coordination structure as the crystal structure of [NH4][VO(O2)2(ima)]. The 51V NMR experiment together with single-crystal X-ray diffraction results indicated that Isomer A is the hexa-coordinated peroxovanadium species while Isomer B is the hepta-coordinated species. 相似文献
15.
Stereospecific synthesis of a family of novel (E)‐2‐aryl‐1‐silylalka‐1,4‐dienes or (E)‐4‐aryl‐5‐silylpenta‐1,2,4‐trienes via a cross‐coupling of (Z)‐silyl(stannyl)ethenes with allyl halides or propargyl bromide is described. In the reaction with allyl bromide, either a Pd(dba)2? CuI combination (dba, dibenzylideneacetone) in DMF or copper(I) iodide in DMSO–THF readily catalyzes or mediates the coupling reaction of (Z)‐silyl(stannyl)ethenes at room temperature, producing novel vinylsilanes bearing an allyl group β to silicon with cis ‐disposition in good yields. Allyl chlorides as halides can be used in the CuI‐mediated reaction. CuI alone much more effectively mediates the cross‐coupling reaction with propargyl bromide in DMSO–THF at room temperature compared with a Pd(dba)2? CuI combination catalysis in DMF, providing novel stereodefined vinylsilanes bearing an allenyl group β to silicon with cis ‐disposition in good yields. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献
16.
Chemistry of Polyfunctional Molecules. 124. Silver(I) Complexes Containing the Ligands Bis(diphenylphosphanyl)amine, -amide and Tris(diphenylphosphanyl)amine Bis(diphenylphosphanyl)amine HN(PPh2)2 ( 1 ) reacts with AgCl to the complex HN(PPh2AgCl)2 ( 5 ) for which in the solid state the cluster structure Ag4Cl4[HN(PPh2)2]2 is assumed. Reaction of 5 with LiN(PPh2)2 ( 2 ) gives the known [N(PPh2AgPh2P)2N] ( 8 ) and the new complex [Ag(μ—Ph2PNPPh2)2(μ—Ph2PNHPPh2)Ag] · dioxane ( 7 · dioxane). The compound 7 · dioxane has been characterized by X-ray diffraction. The molecules are found to contain a bicyclo[3.3.3]undecane-type structure with trigonal planar coordinated silver atoms, which are separated by 281,6(1) pm. The dioxane is bound via H-bridge bond to the NH group of the coordinated HN(PPh2)2. Treatment of 8 with ClPPh2 yields N(PPh2AgCl)3 ( 12 ), which has also been obtained by the reaction of N(PPh2)3 ( 3 ) with silver chloride. All the compounds have been characterized, so far as possible, by IR, Raman, 1H NMR, 31P{1H} NMR, 13C{1H} NMR and mass spectroscopy. 相似文献
17.
The reaction of [RuHCl(CO)(PPh3)3] with 8-hydroxyquinoline has been examined and a novel ruthenium(II) complex – [RuCl(CO)(PPh3)2(C9H6NO)] – has been obtained. This compound has been studied by IR, UV–Vis (absorption and emission), 1H and 31P NMR spectroscopy, and X-ray crystallography. The molecular orbital diagram of the complex has been calculated with the density functional theory (DFT) method. The spin-allowed singlet–singlet electronic transitions of the complex have been calculated with the time-dependent DFT method, and the UV–Vis spectrum of the compound has been discussed on this basis. 相似文献
18.
Ren-Jie Song 《Tetrahedron letters》2009,50(27):3912-8153
A novel one-pot multicatalytic route for the synthesis of 3-methyleneindolin-2-ones has been developed involving sequential copper-catalyzed amination and palladium-catalyzed C-H functionalization processes. In the presence of CuI and Pd(OAc)2, a variety of propiolamides underwent the reaction with iodides to afford the corresponding 3-methyleneindolin-2-ones in moderate yields. 相似文献
19.
Michael P. Brwon Ahmad Yavari Ljubica Manojlovic-Muir Kenneth W. Muir Roger P. Moulding Kenneth R. Seddon 《Journal of organometallic chemistry》1982,236(1):C33-C36
[Pt(Ph2PCHPPh2)2], the first homoleptic complex containing the chelated bis(diphenylphosphino)methanide ligand, has been synthesised by reaction of K2[PtCl4] and Ph2PCH2PPh2 with KOH in ethanol, and characterised by 1H and 31P NMR spectroscopy and X-ray crystallography. 相似文献
20.
J. G. Małecki 《Structural chemistry》2012,23(1):71-77
This article presents a combined experimental and computational study of Ru(II) complex containing 2,5-pyridinedicarboxylic
acid ligand. The novel complex [Ru(py-2,5-COOH)2(PPh3)2]·3H2O has been obtained in the reaction of [RuCl2(PPh3)3] with 2,5-pyridinedicarboxylic acid in methanol and has been studied by IR, 1H, 31P NMR, UV–Vis spectroscopy, and X-ray crystallography. The electronic structure of [Ru(py-2,5-COOH)2(PPh3)2] has been calculated with the density functional theory (DFT) method. The spin-allowed electronic transitions of the complex
have been calculated with the time-dependent DFT method, and the UV–Vis spectrum has been discussed on this basis and rationalized
by determination of ligand field splitting (10Dq) and Racah’s parameters from the experimental spectrum. The luminescence
property of the complex has been examined. 相似文献