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1.
合成了2个新的双(三有机锡)2,3-吡啶二甲酸酯2,3-C5H3N(CO2SnR3)2 (R=c-C6H111;C6H5C(CH3)2CH22),利用元素分析、IR和1H NMR表征了其结构。通过X-射线单晶衍射测定了配合物2的晶体结构。该化合物晶体属单斜晶系,空间群P21/na=0.955 3(1),b=1.811 8(2),c=3.533 9(4) nm,β=94.914(2)°,Z=4,V=6.094 1(13) nm3R=0.038 4,wR=0.096 6,S=1.015。2,3-吡啶二甲酸的2个羧基键连2个三有机锡,2个锡原子均为畸变的四面体配位构型。生物活性测试结果表明,化合物1和2对3种人癌细胞HeLa、CoLo205和MCF-7具有好的体外抗癌活性。  相似文献   

2.
设计并合成了3个含有席夫碱基团的配体(BLn,n=1~3)及相应的双核联吡啶钌配合物[Ru (BLn)(bpy)2]2(ClO44,其中bpy=2,2''-联吡啶,BLn=((PyCHN)-Ph-O-C6H42R (PyCHN=N-2-吡啶亚甲基,R=none (Ru1),—C (CH32Ru2),—SO2Ru3))。通过元素分析、核磁氢谱、红外光谱、质谱等方法对配体和配合物进行了表征。通过体外细胞毒性实验研究了Ru1~Ru3对宫颈癌细胞(Hela)、胃癌细胞(BGC823)、胃癌细胞(SGC-7901)三种肿瘤细胞和人正常胚肺成纤维细胞MRC-5的细胞毒性,实验结果表明Ru3的抗肿瘤活性最好,而Ru1~Ru3均对BGC823具有选择性。  相似文献   

3.
以柔性配体5,5’-二硫双(2-硝基苯甲酸)为主配体,与含氮辅助配体在水热条件下合成了2个Co(Ⅱ)配合物{[Co(dtb)(bpp)·H2O]}n1),{[Co(dtb)(phen)·2H2O]}n2)(H2dtb=5,5’-二硫双(2-硝基苯甲酸),phen=1,10-菲咯啉,bpp=1,3-二(4-吡啶)-丙烷),通过X-射线单晶衍射、X-射线粉末衍射、红外光谱、热重分析和元素分析方法对其进行表征。结构测试表明1为正交晶系,Pbca空间群,晶胞参数为a=1.0149(2)nm,b=2.2159(5)nm,c=2.5291(6)nm,V=5.688(2)nm3,Dc=1.564g·cm-3,Z=8。2为三斜晶系,P1空间群,晶胞参数为a=0.7401(3)nm,b=1.0742(4)nm,c=1.7837(6)nm,α=98.452(7)°,β=99.816(7)°,γ=98.979(7)°,V=1.3580(8)nm3,Dc=1.637g·cm-3,Z=2。化合物1为三维网络结构,并包含单股双轴假螺旋结构。配合物2为一维链状结构,相邻一维链之间通过氢键作用形成二维超分子网络结构。  相似文献   

4.
在微波溶剂热中,三环己基氢氧化锡分别与2,6-H2pydc和3,5-H2pydc(H2pydc=吡啶二甲酸)反应,合成了4个二(三环己基锡)吡啶-二甲酸酯:{[(2,6-Hpydc)SnCy3]·MeOH}n1)、[(2,6-pydc)Sn2Cy6(H2O)]·PhH(2)、[(3,5-pydc)Sn2Cy6(MeOH)]·MeOH(3)和[(3,5-pydc)Sn2Cy6(H2O)]·EtOH(4)。对它们的组成和结构进行了元素分析、IR、(1H,13C和119Sn)NMR和单晶X射线衍射表征。化合物中心锡与配基原子构成畸形四、六面体构型,由于氢键作用,化合物形成二维大环网状超分子结构。初步探索了1、3对人结肠癌(HT-29)、肝癌细胞(HepG2)、乳腺癌(MCF-7)、鼻咽癌(KB)和肺癌细胞(A549)的增殖抑制活性结果,表明化合物具有广谱和较强的抗癌作用。  相似文献   

5.
甲醇中氧化双[三(2-甲基-2-苯基)丙基锡]分别与DL-扁桃酸、苯乙酸反应,合成了2个三烃基锡配合物(PhCMe2CH23Sn[O2CCH(OH)Ph](1)和(PhCMe2CH23Sn(O2CCH2Ph)(2)。经IR、1H和13CNMR、元素分析和X-射线单晶衍射表征结构。12均属三斜晶系,空间群P1。配合物1晶体学参数:a=0.9711(2)nm,b=1.1766(3)nm,c=1.7008(4)nm,α=96.840(12)°,β=103.235(12)°,γ=110.725(11)°,Z=2,V=1.7260(7)nm3,Dc=1.288g·cm-3,μ(Mo)=0.773mm-1,F(000)=696,R1=0.0325,wR2=0.0873。配合物2晶体学参数:a=0.97285(9)nm,b=1.16140(11)nm,c=1.68931(16)nm,α=96.830(5)°,β=101.935(5)°,γ=110.770(4)°,Z=2,V=1.7071(3)nm3,Dc=1.271g·cm-3,μ(Mo)=0.778mm-1,F(000)=680,R1=0.0248,wR2=0.0673。12的中心锡原子均为畸变四面体构型。通过分子间C-H…O或C-H…π作用,1和2分别形成一维带状或链状结构。热重分析结果表明,12具有良好的稳定性。毒性测试的初步结果表明,配合物1、2具有较好的环境相容性,对石螺急性毒性较小。  相似文献   

6.
以3,5-二(吡啶-4-甲氧基)苯甲酸(HL)为配体合成了2个配合物:[BaL2]n1)和[PbL(Ox)0.5]n2)(H2(Ox)为草酸),并通过元素分析,红外光谱,热重和X-射线单晶衍射实验对其结构进行了表征。分析表明,1由L-连接形成二维结构,通过苯环之间的ππ作用连接成三维网络结构;2由于主配的连接形成二维层状结构,再通过辅配连接形成拓扑符号为(43)(44.5.617.72.82)(4.52)的三维网络结构。  相似文献   

7.
通过水热法合成了3个新型配位聚合物:[Cu(Hdppa)(H2O)]n1)、{[Cu2(dppa)(μ2-OH)(H2O)]·H2O}n2)和{[Mn3(dppa)2(H2O)4]·2H2O}n3),(H3dppa=3-(2,5-二羧基苯基)-吡啶羧酸),并对其进行了元素分析、红外光谱、粉末X射线衍射和热重分析表征。X射线单晶衍射分析结果表明:化合物1属于单斜晶系,P21/c空间群,a=1.371(2)nm,b=0.805(11)nm,c=1.266(19)nm,β=112.74(3)°,Z=4;化合物2属于三斜晶系,P1空间群,a=0.839(4)nm,b=1.039(5)nm,c=1.110(5)nm,α=98.31°,β=110.630(3)°,γ=111.90(3)°,Z=2;化合物3属于三斜晶系,P1空间群,a=0.881(6)nm,b=0.939(6)nm,c=1.038(7)nm,α=100.29°,β=97.990(10)°,γ=111.13(7)°,Z=1。化合物1以配体Hdppa2-桥联Cu(Ⅱ)形成一维链状结构;化合物23以配体dppa3-分别桥联Cu(Ⅱ)和Mn(Ⅱ)形成二维层状结构,并进一步通过氢键形成三维超分子结构。变温磁化率研究表明在化合物1和化合物2中存在较强的铁磁耦合作用,其磁交换常数分别为4.44和8.94 cm-1;而化合物3中Mn(Ⅱ)离子之间存在反铁磁相互作用。  相似文献   

8.
本文利用水热合成方法,将稀土氧化物与邻苯二乙酸(H2pda)反应得到了2个新颖的稀土配位聚合物{[Ln2(pda)3(H2O)2]·2H2O}n(Ln=Nd(1),La(2))。测定了它们的晶体结构,并进行了X-射线单晶衍射、红外光谱、荧光光谱和热重分析等性质的表征。晶体结构测定表明这2个化合物为异质同晶化合物。属单斜晶系,C2/c空间群。晶体学参数分别为配合物1a=2.62906(18)nm,b=1.61172(11)nm,c=0.78327(5)nm,β=93.173(5)°,V=3.3139(4)nm3,Z=4,F(000)=1840,μ=3.173mm-1,Dc=1.878g·cm-3,R1=0.0226,wR2=0.0609;配合物2a=2.6271(14)nm,b=1.6149(8)nm,c=0.7966(4)nm,β=92.850(9),V=3.375(3)nm3,Z=4,F(000)=1816,μ=2.570mm-1,Dc=1.823g·cm-3,R1=0.0466,wR2=0.1416。化合物中邻苯二乙酸配体连接相邻的稀土金属离子,形成复杂的具有stp拓朴构型的三维网络结构。  相似文献   

9.
采用水热法合成了一个锰的配合物[Mn(bpydc)(Medpq)]n1)(H2bpydc=2,2’-联吡啶-4,4’-二甲酸,Medpq=2-甲基吡嗪[3,2-f:2’,3’-h]喹喔啉),并利用元素分析、红外光谱、紫外可见光谱、热分析和X-射线单晶衍射对其结构进行了表征。单晶结构分析表明配合物1属于正交晶系,Cc空间群,晶胞参数a=2.0316(4)nm,b=1.5645(3)nm,c=0.71926(14)nm,β=103.97(3),V=2.2185(8)nm3,Z=4。配合物1是一个锰(Ⅱ)离子经由bpydc2-连接形成的三维网络结构。配合物1的固体荧光光谱表明它具有很强的荧光性。应用Gaussian03W程序,在HF/LANL2DZ水平上对标题化合物的自然键轨道(NBO)进行了分析,结果表明Mn(Ⅱ)与配位原子间的价键类型都属于共价键范畴。  相似文献   

10.
丁二酸、戊二酸和己二酸分别与μ-氧-双[三(2-甲基-2-苯基)丙基]锡反应,合成了3个二[三(2-甲基-2-苯基)丙基锡]二元酸酯(CH2)n[CO2Sn(CH2CMe2Ph)3]2(n=2(1),3(2),4(3))。对化合物1~3进行了元素分析、红外光谱及核磁共振(1H,13C)表征,并通过X-射线晶体衍射分析测定晶体结构。化合物中锡与配基原子构成畸型四面体构型。试验表明,化合物23均对人癌细胞Colo205、HepG2、MCF-7、Hela、NCI-H460的增殖具有较强的抑制作用。  相似文献   

11.
在微波溶剂热中,三环已基氢氧化锡、氧化双(三((2-甲基-2-苯基)丙基)锡)与吡啶-2,3(5)-二甲酸反应,合成了3个双核二(有机锡)吡啶-2,3(5)-二甲酸酯:Py(CO)_2(SnR_3)_2(MeOH)_n(R:Cy,n=1(1),2(2);R:PhCMe_2CH_2,n=0(3)),对它们的组成和结构进行了元素分析、IR、(~1H,~(13)C,~(119)Sn)NMR和X射线晶体衍射分析表征,化合物中心锡与配基原子构成畸形四/六面体构型,由于氢键作用,化合物1形成一维链,2形成二维34元大环网状结构。化合物对人结肠癌(HT-29)、肝癌细胞(HepG2)、乳腺癌(MCF-7)、鼻咽癌(KB)和肺癌细胞(A549)的增殖有较强的抑制作用。  相似文献   

12.
Three new compounds, [Cd(μ 3 -Hpdh)(μ2-Cl)] n (1), Mn(Hpdh)2(H2O)2 (2) and Zn(Hpdh)2 (H2O)2 (3) (H2pdh =?pyridine-2,3-dicarbo-2,3-hydrazide), have been synthesized and characterized by elemental analysis, IR spectra, TG and single-crystal X-ray diffraction. Under hydrothermal conditions, H2pdh is generated by an in situ acylation of H2pda (H2pda =?pyridine-2,3-dicarboxylic acid) with hydrazine hydrate. Complex 1 features a 2D layer structure constructed by a dinuclear Cd(II) building block. In complexes 2 and 3, hydrogen bonding interactions connect mononuclear structures into 3D supramolecular frameworks.  相似文献   

13.
在微波溶剂热中,三环己基氢氧化锡分别与2,6-H_2pydc和3,5-H_2pydc(H_2pydc=吡啶二甲酸)反应,合成了4个二(三环己基锡)吡啶-二甲酸酯:{[(2,6-Hpydc)SnCy_3]·MeOH}_n(1)、[(2,6-pydc)Sn_2Cy_6(H_2O)]·PhH(2)、[(3,5-pydc)Sn_2Cy_6(MeOH)]·MeOH(3)和[(3,5-pydc)Sn_2Cy_6(H_2O)]·EtOH(4)。对它们的组成和结构进行了元素分析、IR、(1H,13C和119Sn)NMR和单晶X射线衍射表征。化合物中心锡与配基原子构成畸形四、六面体构型,由于氢键作用,化合物形成二维大环网状超分子结构。初步探索了1、3对人结肠癌(HT-29)、肝癌细胞(HepG2)、乳腺癌(MCF-7)、鼻咽癌(KB)和肺癌细胞(A549)的增殖抑制活性,结果表明化合物具有广谱和较强的抗癌作用。  相似文献   

14.
微波辐射条件下, μ-氧-双(三正丁基锡)分别与二苯乙醇酸、2-氯烟酸反应, 合成了三正丁基锡羧酸酯(n-Bu)3SnO2CR(H2O)[R:C(OH)Ph2 (1), C5NH3Cl (2)]。经IR、1H和13C NMR、元素分析及X-射线单晶衍射表征结构。配合物12均属正交晶系, 空间群分别为PbcaP212121, 配基与中心锡原子均构成五配位畸变三角双锥构型。12晶体中, 存在着多种氢键作用, 分别连接扩展成二维和三维超分子网络。初步测试表明:12对人癌细胞Colo205、HepG2、MCF-7、Hela、NCI-H460增殖均有较强的抑制作用, 尤其对MCF-7、Hela、NCI-H460的抑制作用均大大优于卡铂, 且1的抗肿瘤活性更优于2。  相似文献   

15.
Two binuclear cadmium(II) iodide compounds of the types [Cd2(L1)(I)4] (1) and [(L2)Cd(μ-I)CdI3] (2) [L1 = N,N′-(bis(pyridine-2-yl)formylidene)triethylenetetramine and L2 = tris(2-aminoethyl)amine] are synthesized and characterized. X-ray structural study shows that each cadmium(II) in 1 has a distorted square pyramidal geometry with a CdN3I2 chromophore and that L1 behaves as a binucleating bis(tridentate) ligand bridging the metal centers with iodides remaining as terminals. In 2, one cadmium(II) adopts a distorted tetrahedral geometry with a CdI4 chromophore surrounded by four iodides, while the other has a distorted trigonal bipyramidal environment with CdN4I chromophore bound by four N atoms of L2 and one bridging iodide. Weak C–H···π interactions in 1 result in an infinite 1D chain; however, such weak non-covalent interactions are absent in 2. The Schiff base complex, 1, shows high-energy intraligand 1(π–π*) fluorescence in DMF solution at room temperature, whereas compound 2 containing tripodal amine is fluorescent-inactive.  相似文献   

16.
Novel heteroscorpionate-containing tin and organotin(IV) complexes, [SnRnX3 − n(L)], R = Me, Bun, Ph, or cy; X = Cl, Br or I, n = 0, 1, 2 or 3; L = bis(pyrazol-1-yl)acetate (bpza) or bis(3,5-dimethylpyrazol-1-yl)acetate (bdmpza), have been synthesized and characterized by spectral (IR, 1H, 13C and 119Sn NMR, 119mSn Mössbauer) and analytical data. In [SnI3(bdmpza)], the ligand is fac-N,N′,O-tridentate, the three iodine atoms thus also fac about the six-coordinate tin(IV) atom. Neutral bpzaH reacts with BunSnCl3, PhSnCl3 and SnCl4 in Et2O in the absence of base, yielding 1:1 adducts [XSnCl3(bpzaH)] (X = R or Cl).  相似文献   

17.
Abstract  The solvothermal reactions of copper(I) tert-butylthiolate (CuS t Bu) with 1/3 equiv. of dppe [dppe = bis(diphenylphosphino)ethane] or bix [bix = 1,4-bis(imidalzole-1-ylmethyl)benzene] in CH3CN led to the formation of two cluster-based coordination polymers [(CuS t Bu)4(dppe)] n (1) and [(CuS t Bu)6(bix)] n (2). Single-crystal X-ray diffraction studies reveal that 1 and 2 feature 1D zigzag polymeric chains which contain rare (CuS t Bu)4 or (CuS t Bu)6 clusters as connecting junctions and dppe or bix as linkers. The title compounds show optical transitions with band gaps of ∼3.18 eV for 1 and ∼2.81 eV for 2. Compounds 1 and 2 exhibit strong photoluminescence with the peaks maximum at 603 and 629 nm respectively. Graphical Abstract  Two 1D zigzag polymers [(CuS t Bu)4(dppe)] n (1) and [(CuS t Bu)6(bix)] n (2) [dppe = bis(diphenylphosphino) ethane] or bix [bix = 1,4-bis(imidalzole-1-ylmethyl)benzene] have been synthesized by solvothermal reactions using copper(I) tert-butylthiolate CuS t Bu as the starting material. Compounds 1 and 2 contain rare (CuS t Bu)4 and (CuS t Bu)6 clusters as connecting nodes and dppe or bix as bridging ligands. The title compounds show optical transitions with band gaps of ∼3.18 eV for 1 and ∼2.81 eV for 2. Both 1 and 2 exhibit strong photoluminescence with the peak maximums at 603 and 629 nm, respectively. The 1D zigzag polymer of [(CuS t Bu)6(bix)] n (2).  相似文献   

18.
微波辐射条件下,μ-氧-双(三正丁基锡)分别与二苯乙醇酸、2-氯烟酸反应,合成了三正丁基锡羧酸酯(n-Bu)3SnO2CR(H2O)[R:C(OH)Ph2(1),C5NH3Cl(2)]。经IR、1H和13C NMR、元素分析及X-射线单晶衍射表征结构。配合物12均属正交晶系,空间群分别为PbcaP212121,配基与中心锡原子均构成五配位畸变三角双锥构型。12晶体中,存在着多种氢键作用,分别连接扩展成二维和三维超分子网络。初步测试表明:12对人癌细胞Colo205、HepG2、MCF-7、Hela、NCI-H460增殖均有较强的抑制作用,尤其对MCF-7、Hela、NCI-H460的抑制作用均大大优于卡铂,且1的抗肿瘤活性更优于2。  相似文献   

19.
Abstract

Four diorganotin(IV) complexes, bis[(trimethylsilyl)methyl]tin salicylaldehyde thiosemicarbazonate monohydrate(1), bis[(trimethylsilyl)methyl]tin 3-methoxysalicylaldehyde thiosemicarbazonate (2), bis[(trimethylsilyl)methyl]tin 5-tert-butyl-3-methylsalicylaldehyde thiosemicarbazonate (3), and bis[(trimethylsilyl)methyl]tin 2-oxylnaphthaldehyde thiosemicarbazonate (4) have been synthesized by reactions of (Me3SiCH2)2SnCl2 with the corresponding semicarbazone. The four complexes were characterized by IR and NMR spectroscopy and elemental analyses. The X-ray studies of compounds 1 and 4 showed that the thiosemicarbazone ligands act as tridentate ligands chelating to the central tin atoms, and thus the tin atoms were five coordinated in trigonal bipyramidal geometry for both compounds.

Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file.  相似文献   

20.
Abstract

Reaction of two equivalents of N-mono- or di-substituted 3-amino-4-(n-butoxy)-3-cyclobutene-1,2-diones with a 1,2-diaminoethane gave N-mono- or di-substituted 1,2-bis((2-amino-1-cyclobutene-3,4-dione)amino)-ethane derivatives (bis(squaramides)). Reaction of the bis(squaramides) with excess P4S10 gave the analogous tetrathio derivatives (bis(dithiosquaramides), LH2) of formula (NR1R2)C4S2(NHCH2CH2NH)-C4S2(NR1R2) (R1=n-Bu, R2=H; R1=R2=Et, n-Bu). The new bis(dithiosquaramide) ligands were characterized by elemental analysis, IR, 1H NMR, 13C NMR, electronic, and mass spectroscopic methods. The complexes of these ligands with nickel(II) were prepared, isolated and characterized. The isolated complexes are neutral 2:2 species of formula Ni2L2, as evidenced by results from mass spectrometry, and they exhibit thermochromic behaviour in pyridine solution. Additional spectroscopic data (IR, NMR) are consistent with the ligands being coordinated only through sulfur donor atoms and a structure for the complexes is proposed.  相似文献   

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