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Reaction of tribenzyltin chloride with 2‐furan‐, 2‐(2‐furanyl)‐vinyl‐, 2‐(5‐t‐butyl) furan‐, 2‐thiophene‐, 2‐pyridine‐, 3‐pyridine‐, 4‐pyridine‐, 3(1H)‐indole‐, 3(1H)‐indolylmethyl‐or 3‐[3(1H)‐indolyl]propyl‐carboxylate in 1:1 stoichiometry yielded tribenzyltin heteroaromatic carboxylate (PhCH2)3‐SnO2CR. All compounds were characterized by elemental analysis, IR, ′H NMR and MS. The crystal structure of tribenzyltin 4‐pyridinecarboxylate was determined by single crystal X‐ray diffraction. In the crystal of tribenzyltin 4‐pyridinecarboxylate, the tin atoms are five‐coordinated in a trigonal bipyramidal structure with a linear polymer containing Sn–‐O bond with length of 0. 2142(2) nm and Sn–‐N bond with length of 0.2563(4) nm. 相似文献
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Introduction As an important type of fungicides, triazole compounds are highly efficient, low poisonous and inward absorbent.1-3 At present, the studies on triazole derivatives are mainly concentrated on compounds with triazole as the only active group. The report of triazole compounds that contain both triazole group and other active group in a single molecule has rarely been found. Dialkyl-substituted dithiocarbamate salts have also shown interesting biological effects.4 N,N-Dialkyldithio-… 相似文献
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Sadiq‐ur‐Rehman Bilal Ahmad Khan Muhammad Aziz Chaudhary Khawaja Ansar Yasin Saqib Ali 《Heteroatom Chemistry》2015,26(6):417-425
Di‐ and triorganotin(IV) carboxylates, RnSn(OCOC(R2)=CHR1)4–n (n = 2 and 3; R = Me, Et, n‐Bu, Ph; R1 = 3‐CH3O‐4‐OHC6H3, R2 = C6H5) were prepared by reacting the corresponding organotin(IV) chloride with the silver salt of the (E)‐3‐(4‐hydroxy‐3‐methoxyphenyl)‐2‐phenylpropenoic acid. The title compounds were investigated and characterized by elemental analysis, infrared (FT‐IR), multinuclear (1H, 13C, 119Sn) NMR, and mass spectrometry, and possible structures were proposed. The complexes and ligand acid ( HL ) have been evaluated in vitro against various bacteria and fungi. The results noticed during the biocidal activity screenings proved their in vitro biological potential. They were also tested for cytotoxicity. 相似文献
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Bin Cui Li‐Zhuang Chen Xiao‐Lei Hu Ming Wang Guang‐Fan Han 《Journal of heterocyclic chemistry》2012,49(4):900-904
A green and convenient approach to the synthesis of a series of 4,7‐diaryl‐5‐oxo‐4H‐benzo[b]pyran derivatives from appropriate aromatic aldehydes and 5‐aryl‐1,3‐cyclohexanedione with malononitrile in the presence of dilute HCl as catalyst (30 mmol/L) is described. This method provides several advantages such as environmental friendliness, low cost, high yields, and simple work up procedure. The structures of all compounds were characterized by infrared (IR), mass spectrometry (MS), 1H NMR, and elemental analysis. The crystal structure of trans/cis‐2‐amino‐3‐cyano‐7‐(4′‐methoxo‐phenyl)‐4‐phenyl‐5‐oxo‐4H‐benzo[b]pyran, g , was determined by single crystal X‐ray diffraction analysis. The crystal of compound g belongs to monoclinic with space group P 21/c, a = 8.477(3) nm, b = 18.948(6) nm, c = 24.915(7) nm, α = 90.00°, β = 107.388(11)°, γ= 90.00°, Z = 8, V = 3.819(2) nm3, R1 = 0.0754, wR2 = 0.2042. 相似文献
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Prashanth W. Menezes Stefan Hoffmann Yurii Prots Rüdiger Kniep Prof. Dr. 《无机化学与普通化学杂志》2009,635(1):33-35
KSc(HPO4)2 was obtained by hydrothermal synthesis. The crystal structure was determined from single‐crystal X‐ray data: orthorhombic, space group Pnma (No. 62), a = 14.5095(10), b = 5.4260(4), c = 8.4882(5) Å, V = 668.26(8) Å3 and Z = 4. The crystal structure of KSc(HPO4)2 represents a new structure type containing twelve‐ and four‐membered rings forming channels along [010] built of alternating ScO6 octahedra and HPO42? groups. Potassium ions reside within the twelve membered ring channels. 相似文献
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Masaaki Suzuki Prof. Dr. Kengo Sumi Dr. Hiroko Koyama Dr. Siqin Takamitsu Hosoya Dr. Misato Takashima‐Hirano Hisashi Doi Dr. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(45):12489-12495
The Pd0‐mediated rapid trapping of methyl iodide with an excess amount of a heteroaryl‐substituted tributylstannane has been investigated with the aim of incorporating a short‐lived 11C‐labelled methyl group into the heteroaromatic carbon frameworks of important organic compounds, such as drugs with various heteroaromatic structures, in order to execute a positron emission tomography (PET) study of vital systems. The reaction was first performed by using our previously developed CH3I/stannane/[Pd2(dba)3]/P(o‐CH3C6H4)3/CuCl/K2CO3 (1:40:0.5:2:2:2) system in DMF at 60 °C for 5 min (conditions A), however, the reaction gave low yields for various heteroaromatic compounds. Increasing the amount of phosphine ligand (conditions B) led to a significant improvement in the yield, but the conditions were still not suitable for a range of basic heteroaromatic structures. Use of the CuBr/CsF system (conditions C) also provided a result similar to that obtained under conditions B with an increased amount of the phosphine. Thus, pyridine and related heteroaromatic compounds remained less reactive substrates. The problem was overcome by replacing the DMF solvent with N‐methyl‐2‐pyrolidinone (NMP). The reaction in NMP at 60–100 °C for 5 min using a CH3I/stannane/[Pd2(dba)3]/P(o‐CH3C6H4)3/CuBr/CsF (1:40:0.5:16:2:5) combination (conditions D) gave the methylated products in yields of more than 80 % (based on the reaction of CH3I) for all of the heteroaromatic compounds listed in this study. Thus, the combined use of NMP and an increased amount of phosphine is important for promoting the reaction efficiently. The use of this general approach to rapid methylation has been well demonstrated by the synthesis of the PET tracers 2‐ and 3‐[11C]methylpyridines by using [Pd2(dba)3]/P(o‐CH3C6H4)3/CuBr/CsF (1:16:2:5) in NMP at 60 °C for 5 min, which gives the desired products in HPLC analytical yields of 88 and 91 %, respectively. 相似文献
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The six organotin complexes dibutyltin(IV) bis(heteroaromatic carboxylate) were synthesized by the reaction of (n‐Bu)2SnO with heteroaromatic carboxylic acid in 1:2 molar ratio. These complexes have been characterized by elemental analysis, IR, 1H, 13C and 119Sn NMR. The crystal structure of dibutyltin(IV) bis(2‐thiazolylcarboxylate) was determined by X‐ray single crystal diffraction. This compound is a weakly bridged dimer through weak interaction Sn···O between molecules. The tin atoms took six‐coordinate skew‐trapezoidal bipyramidal geometry. The crystal of complex 3 belongs to monoclinic symmetry with space group P21/c, a=1.863(2) nm, b=2.220(3) nm, c=1.0395(10) nm, β=90.275(16)°, Z=8, V=4.292(8) nm3, Dc=1.514 Mg/m3, μ=1.406 mm‐1, F(000)=1968, S=0.999, R=0.0549, wR=0.1011. 相似文献
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Guo‐Cang Wang Jian Xiao Yong‐Na Lu Lin Yu Hai‐Bin Song Jin‐Shan Li Jing‐Rong Cui Rui‐Qing Wang Fu‐Xiang Ran Hong‐Gen Wang 《应用有机金属化学》2005,19(1):113-117
Four novel triarylbismuth(V) di(N‐salicylidene)amino carboxylates were synthesized. Their structures were confirmed by IR, 1H NMR, 13C NMR and elemental analysis. The crystal structure of (2‐HOC6H4CH?NCH2CO2)2BiPh3 was determined by X‐ray diffraction. The in vitro cytotoxicity of all compounds against three human cancer cells (HL‐60, BGC‐823 and MDA‐MB‐435) at 10 µM are reported. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
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Two novel five‐coordinate zinc(II) complexes with the tripod ligand tris(N‐methylbenzimidazol‐2‐ylmethyl)amine (Mentb) and two different α,β‐unsaturated carboxylates, with the composition [Zn(Mentb)(acrylate)] (ClO4)·DMF·1.5CH3OH ( 1 ) and [Zn(Mentb)(cinnamate)](ClO4)·2DMF·0.5CH3OH ( 2 ), were synthesized and characterized by means of elemental analyses, electrical conductivity measurements, IR, UV, and 1H NMR spectra. The crystal structure of two complexes have been determined by a single‐crystal X‐ray diffraction method, and show that the ZnII atom is bonded to a Mentb ligand and a α,β‐unsaturated carboxylate molecule through four N atoms and one O atom, resulting in a distorted trigonal‐bipyramidal coordination [τ( 1 ) = 0.853, τ( 2 ) = 0.855], with approximate C3 symmetry. 相似文献
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Guang‐Fan Han Bin Cui Li‐Zhuang Chen Rui‐Hua Wang Yan Jin 《Journal of heterocyclic chemistry》2011,48(2):312-316
A green and convenient approach to the synthesis of novel 4,7‐diaryl‐2‐oxo(thio)‐1,2,3,4,5,6,7,8‐octahydroquinazoline‐5‐one derivatives from appropriate aromatic aldehydes and 5‐aryl‐1,3‐cyclohexanedione with urea or thiourea in the presence of dilute HCl as catalyst in water is described. This method provides several advantages such as environmental friendliness, low cost, high yields, and simple workup procedure. The structures of all compounds were characterized by elemental analysis, IR, MS, and 1H NMR. The crystal and molecular structure of 4‐(4′‐chlorophenyl)‐7‐(4′‐methoxyphenyl)‐1,2,3,4,5,6,7,8‐octahydroquinazoline‐2,5‐dione 5m have been determined by single crystal X‐ray diffraction analysis. The crystal of compound 5m belongs to monoclinic with space group P‐21/c, a = 1.4353 (4) nm, b = 1.4011 (4) nm, c = 0.9248 (3) nm, α = 90.00°, β = 101.242 (6)°, γ = 90.00°, Z = 4, V = 1.8241 (9) nm3, R1 = 0.0448, and wR2 = 0.1022. J. Heterocyclic Chem., (2011). 相似文献
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Shu‐Ping Wang Dong‐Zhao Gao Dai‐Zheng Liao Zong‐Hui Jiang Shi‐Ping Yan 《无机化学与普通化学杂志》2006,632(3):491-494
A new coordination polymer of the formula [Ni(NIT4py)2(ip)(H2O)]n(NIT4py = 2‐(4′‐pyridinyl)‐4,4,5,5‐tetramethylimidazoline‐1‐oxyl‐3‐oxide and ip = isophthalate dianion) has been synthesized and characterized by elemental analyses, IR spectrum, and single‐crystal X‐ray diffraction. The coordination about each Ni2+ ion is a distorted octahedra. Each isophthalate dianion binds two Ni2+ ions in monodentate‐bidentate mode, leading to a 1‐D chain. Among the chains, the coordinated water molecules and carboxylato oxygen atoms form hydrogen bonds, generating an infinite 1‐D ladder structure of a double‐chain. The magnetic study shows that the decrease of χMT value in the low temperature for the complex is mainly ascribed to the zero‐field splitting of the distorted octahedral Ni2+ ions. 相似文献
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A new cobalt(II) coordination polymer [Co(L1)(bpy)(H2O)] · H2O ( 1 , H2L1 = 2‐sulfobenzoic acid and bpy = 4,4’‐bipyridine) was synthesized by in situ hydrothermal reaction. The single‐crystal X‐ray diffraction analysis shows that compound 1 belongs to monoclinic system with space group C2/c. The structure of compound 1 exhibits a 2D framework linked by ligand L1 and 4,4’‐bpy, of which L1 was produced by in situ hydrothermal reaction of 2‐(pyridinyl‐4‐methylsulfanyl) benzoic acid. The 2D structure was future connected into a 3D framework through hydrogen bonds. The magnetic analysis indicates the presence of weakly antiferromagnetic interaction between adjacent Co2+. 相似文献
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Yao Huang Long‐Jiang Liu Ming‐Shan Zhou Xiao‐Jun Zhou Chao Zhu Fei‐E Fu Yong‐Ming Zhang 《无机化学与普通化学杂志》2013,639(10):1884-1887
Two metal‐organic frameworks, [Zn(dmtrz)(btrc)1/3]n ( 1 ) and [Zn2(dmtrz)2(btec)(H2O)2]n ( 2 ) (dmtrz = 3, 5‐dimethyl‐1‐H‐1, 2,4‐triazole, btrc = 1, 3,5‐benzenetricarboxylate, btec = 1, 2,4, 5‐benzenetetracarboxylate), were synthesized by hydrothermal reaction. The crystal structure analysis reveals that compound 1 is a dense 3D framework with Schläfli symbols of {43}2{46 · 66 · 83}3, which is a loh1 structure. Compound 2 is a 2D network. In addition, the photoluminescence of two compounds were studied in solid state at room temperature, together with their thermal analysis. 相似文献
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Synthesis and Characterization of Diorganotin Compounds {[R2Sn(ON =CHC6H5)]2O}2 and Crystal Structure of {[(C6H5CH2)2Sn(ON=CHC6H5)]2O}2 总被引:1,自引:0,他引:1
Introduction Dimeric tetraorganodistannoxanes are a kind of in-teresting organotin oxo clusters and have attracted con-siderable attention during the last several decades, in view of their unique structural features1-5 as well as their applications as biocides6,7 and in homogenous cataly-sis.8,9 In the solid state, they contain characteristic Sn4O2X2Y2 structural motifts with staircase or ladder arrangements, a planar four-membered Sn2O2 ring and, generally, penta-coordination around the tin… 相似文献
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Meng Hu Dr. Sheng‐Chun Chen Zhi‐Hui Zhang Liang Wang Fu‐An Sun Ai‐Jun Cui Ming‐Yang He Prof. Qun Chen 《无机化学与普通化学杂志》2012,638(14):2329-2334
Three new coordination compounds, [Pb(HBDC‐I4)2(DMF)4]( 1 ) and [M(BDC‐I4)(MeOH)2(DMF)2]n (M = ZnII for 2 and MnII for ( 3 ) (H2BDC‐I4 = 2, 3, 5, 6‐tetraiodo‐1, 4‐benzenedicarboxylic acid), were synthesized and characterized by elemental analysis, IR spectroscopy, thermogravimetric (TG) analysis, and X‐ray single crystal structure analysis. Single‐crystal X‐ray diffraction reveals that 1 crystallizes in the monoclinic space group C2/c and has a discrete mononuclear structure, which is further assembled to form a two‐dimensional (2D) layer through intermolecular O–H ··· O and C–H ··· O hydrogen bonding interactions. The isostructural compounds 2 and 3 crystallize in the space group P21/c and have similar one‐dimensional (1D) chain structures that are extended into three‐dimensional (3D) supramolecular networks by interchain C–H ··· π interactions. The PbII and ZnII complexes 1 and 2 display similar emissions at 472 nm in the solid state, which essentially are intraligand transitions. 相似文献
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Syntheses,Crystal Structures,and Magnetic Properties of Two Mononuclear Nickel‐Nitronyl Nitroxide Radical Compounds
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Bin Zhai Zhong‐Yi Li Fu‐Qiang Zhang Su‐Zhi Li Fu‐Li Zhang Chi Zhang Xiang‐Fei Zhang Guang‐Xiu Cao Yue Ma 《无机化学与普通化学杂志》2016,642(7):527-531
Two nickel(II) complexes were synthesized and structurally as well as magnetically characterized by using two positional isomeric nitronyl nitroxide radical ligands and H3cda as co‐ligand: [Ni(NIToPy)(cda)]H2O · CH3OH ( 1 ) and [Ni(IM4Py)2(cda)H2O] ( 2 ) [NIToPy = 2‐(3′‐pyridinyl)‐4,4,5,5‐tetramethyl‐4,5‐dihydro‐1H‐imidazolyl‐1‐oxyl‐3‐oxide; IM4Py = 2‐(4′‐pyridinyl)‐4,4,5,5‐tetramethylimidazoline‐l‐oxyl; H3cda = 4‐hydroxypyridine‐2,6‐dicarboxylic acid]. Single‐crystal structures analyses show that both complexes have similar mononuclear structures, in which the central NiII ions are hexacoordinated with a distorted octahedral arrangement. The magnetic properties of 1 and 2 were studied, and antiferromagnetic interactions between NiII ion and radicals are observed. 相似文献
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Two novel one‐ and two‐dimensional network structure bismuth(III) complexes with N, N‐di(2‐hydroxylethyl)‐aminodithiocarboxylate, {Bi[S2CN(C2H4OH)2]2[1, 10‐Phen]2(NO3)}·3H2O (1) and (Bi[S2CN(C2H4OH)2]3)2 (2) were synthesized. Their crystal and molecular structures were determined by X‐ray single crystal diffraction analysis. The crystal 1 belongs to monoclinic system with space group C2/c, a=1.6431(7) nm, b=2.4323(10) nm, c= 1.2646(5) nm, β=126. 237(5), Z=4, V=4.076(3) nm3, Dc=1.757 Mg/m3, μ=4.598 mm?1, F(000)=2156, R= 0.0211, wR=0.0369. The structure shows a distorted square antiprism configuration with eight‐coordination for the central Bi atom. The one‐dimensional chain structure was formed by H‐bonding interaction between hydroxyl group of N, N‐di(2‐hydroxylethyl)aminodithiocarboxylate ligands and crystal water. The crystal 2 belongs to monoclinic system with space group p2(1)/c, a= 1.1149(4) nm, b=2.1274(8) nrn, c=2.2107(8) nm, β=98.325(8)°, 2=4, V=5. 188(3) nm3, Dc=1.920 Mg/m3, μ=7.315 mm?1, F(000)=2944, R=0.0565, wR=0.0772. The structure shows a distorted square antiprism configuration with eight‐coordination for the central Bi atoms. The two‐dimensional network structure was formed by H‐bonding interaction between adjacent molecules. 相似文献
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Synthesis, Structure and Biological Activities of Novel Triazole Compounds Containing 4,6-Dimethyl-pyrimidin-2-ylthio Group 总被引:1,自引:0,他引:1
Introduction As an important type of fungicides, triazole com-pounds are highly efficient, low poisonous and inward absorbent.1-3 At present, the studies on triazole deriva-tives are mainly concentrated on compounds with tria-zole as the only active group. The report on triazole compounds that contain both triazole group and other active group in a single molecule has rarely been found. Some pyrimidines have been used as highly efficient and lowly poisonous fungicides4 in controling powdery mi… 相似文献