二正丁基锡水杨醛缩对氨基苯甲酸酯配合物的合成、表征及结构研究

The title complex {[ⁿBu₂Sn(2-OHC₆H₄CH=NC₆H₄COO)]₂O}₂·2H₂O was synthesized by the reaction of N-(4-carboxyphenyl)-salicylideneimine with dibutyltin(IV) oxide in 1∶1 molar ratio. The compound has been characterized by elemental analysis, IR, ¹H NMR spectra and X-ray single crystal diffraction. It crystallizes in triclinic system with space group P1. The crystal data are: a=1.242 9(2) nm, b=1.261 3(2) nm, c=1.594 9(3) nm, α=102.06(2)°, β=92.884(3)°, γ=95.939(3)°, Z=2, D_c=1.342 g·cm^-3, F(000)=1 000, V=2.425 2(7) nm³, R₁=0.041 5, wR₂=0.104 4. The compound is in centro-symmetric dimer structure mode with a four-member central endo-cyclic Sn₂O₂ unit in which the bridging oxygen atoms are tri-coordinated. All the tin atoms are five-coordinated with geometry of distorted trigonal bipyramid. CCDC:286105.     

二正丁基锡二(邻氯苯甲酸)酯配合物{[n-Bu2Sn(O2CC6H4Cl)]2O}2的微波固相合成、结构及体外抗癌活性

二正丁基氧化锡和邻氯苯甲酸按物质的量比1∶2,通过微波固相合成法合成了二正丁基锡邻氯苯甲酸酯配合物{[n-Bu2Sn(O2CC6H4Cl)]2O}2。经X射线衍射方法测定了其晶体结构,配合物属三斜晶系,空间群为P 1,晶体学参数a=1.17653(4)nm,b=1.20672(4)nm,c=2.74090(9)nm,α=80.493(2)°,β=83.995(2)°,γ=64.260(2)°,V=3.4547(2)nm3,Z=2,Dc=1.525 g/cm3,μ(MoKα)=16.34 cm-1,F(000)=1592,R1=0.0414,wR2=0.1349。晶体中每一个结构单元包含了2个键参数完全不同的以Sn2O2构成的平面四元环为中心环的二聚体结构分子,锡原子均为五配位的畸变三角双锥构型。对其结构进行量子化学从头计算,探讨了配合物的稳定性、分子轨道能量以及部分前沿分子轨道的组成特征。     

二正丁基锡邻甲基水杨酸酯配合物的合成、结构及量子化学研究

二正丁基氧化锡和邻甲基水杨酸按物质的量比1∶1反应,合成了二正丁基锡邻甲基水杨酸酯配合物{[n-Bu2Sn(O2CC6H3OHCH3)]2O}2。经X-射线衍射方法测定了其晶体结构,配合物属单斜晶系,空间群为P21/c,晶体学参数a=2.436 89(10)nm,b=1.909 58(8)nm,c=1.632 04(7)nm,β=107.467 0(10)°,V=7.244 4(5)nm3,Z=4,Dc=1.438 g.cm-3,μ(Mo Kα)=14.19 cm-1,F(000)=3 184,R1=0.034 7,wR2=0.084 7。晶体中每一个结构基元包含了2个结构相同而空间取向不同的以Sn2O2构成的平面四元环为中心环的双核结构分子,锡原子均为五配位的畸变三角双锥构型。对其结构进行量子化学从头计算,探讨了配合物的稳定性、分子轨道能量以及部分前沿分子轨道的组成特征。     

Synthesis and Crystal Structure of a Dialkyltin Benzamidoacetate Compound {[n-Bu2Sn（O2CCH2NHCOC6H5）]2O}2·C6H6

A dialkyltin benzamidoacetate compound {[n-Bu2Sn（O2CCH2NHCOC6H5）]2O}2· C6H6 has been synthesized by the reaction of dialkyltin oxide with benzamidoacetic acid in 1：1 molar ratio, and its structure was determined by X-ray single-crystal diffraction. The crystal belongs to orthorhombic, space group Pca21, with a = 1.9134（4）, b = 1.9605（4）, c = 2.0657（4） nm, Z = 4, V = 7.749（3） nm^3, Dc = 1.054 mg·m^-3,μ（MoKa） = 1.337 mm^-1, F（000） = 3576, the final R = 0.0405 and wR = 0.0860. According to the structural analysis, the tin atom adopts a distorted five-coordinate trigonal bipyramidal geometry, and the dimer structure is shaped by one planar four-membered Sn2O2 ring.     

两个三环己基锡吡啶羧酸酯化合物的合成、结构及量子化学研究

以2-氯烟酸(ClPyCOOH)、吡啶-3-甲酸(PyCOOH)分别与三环己基氢氧化锡反应,合成了两个三环己基锡杂环羧酸酯[Cy3Sn(ClPyCOO)(H2O)](1),[Cy3Sn(PyCOO)(H2O)](2)(Cy为环己基)。经IR、1H NMR、元素分析和X射线衍射表征结构。配合物均属单斜晶系,空间群C2/c。晶体学参数:化合物1,a=2.018 97(5)nm,b=1.361 16(4)nm,c=1.957 58(5)nm,β=104.815 0(10)°,Z=8,V=5.200 9(2)nm3,Dc=1.386 g.cm-3,μ(Mo Kα)=1.108 mm-1,F(000)=2 240,R1=0.043 7,wR2=0.138 0。化合物2,a=2.005 44(14)nm,b=1.355 58(10)nm,c=1.911 38(14)nm,β=107.260(3)°,Z=8,V=4.962 2(6)nm3,Dc=1.361 g.cm-3,μ(Mo Kα)=1.052 mm-1,F(000)=2 112,R1=0.035 2,wR2=0.112 5。中心锡原子均为五配位三角双锥构型。分子间存在氢键作用,配合物1、2分别形成二维结构。利用量子化学G98W软件,在LANL2DZ基组对配合物的稳定性、前沿分子轨道组成及能量进行研究。     

Synthesis,Characterization and Crystal Structure of a Trinuclear Diorganotin(Ⅳ) Complex with N'-acetylsalicylhydrazide

A diorganotin(IV) complex [(CH3)2Sn]3L2(L=N'-acetylsalicyl-hydrazide) 1 has been successfully synthesized and structurally characterized by elemental analysis,FT-IR,NMR(1H,13C and 119Sn) spectra and X-ray crystallography.The crystal structure belongs to an orthorhombic system,space group Pnma with a=8.5047(16),b=28.466(5),c=12.842(2) ,V=3109.1(10)3,C24H32N4O6Sn3,Mr=828.61,Dc=1.770 g/cm3,μ(Mo-Kα)=2.432 mm-1,Z=4,F(000)=1608,the final R=0.0378 and wR=0.0973 for 2125 observed reflections(Ⅰ 2σ(Ⅰ)).The complex is a trinuclear organotin(Ⅳ) containing five-and six-coordinated tin atoms.And weak but significant Sn···O intermolecular interactions lead to the assembly of complex into a 1D linear polymeric chain supramolecular framework.     

鼓形有机锡氧簇合物[nBuSn(O)(NNA)]6的合成、晶体结构及生物活性

The title complex [ⁿBuSn(O)(NNA)]₆(1), was synthesized by the reaction of ⁿBuSn(O)OH with naphthalene acetic acid in 1∶1 molar radio, where HNNA=naphthalene acetic acid. The complex was characterized by IR, ¹H NMR spectra and elemental analysis. The crystal structure was determined by X-ray diffraction method. It crystallizes in monoclinic system with space group P2₁/n. The crystal data are: a=2.647 1(5) nm, b=1.412 9(3) nm, c=2.805 7(6) nm, β=116.185(3)°, Z=4, V=9.417(3) nm³, D_c=1.595 g·cm^-3, μ=1.632 mm^-1, F(000)=4 512, R₁=0.050 3, wR₂=0.131 2. The structure shows a distorted octahedral configuration with six-coordination for the central tin atom. The bioactivity test shows that the Sn(Ⅳ) complex has selective antibacterial property. CCDC: 752497.     

有机锡配合物{[(o-MeC6H4CH2)2Sn(O)]2(o-MeC6H4CH2NHO)}2的合成、结构和性质研究

二(o-甲基苄基)二氯化锡与N-(o-甲基苄基)羟胺在碱性条件下反应,合成了有机锡配合物{[(o-MeC6H4CH2)2Sn(O)]2(o-MeC6H4CH2NHO)}2。经X-射线衍射方法测定了化合物的晶体结构。该化合物晶体属三斜晶系,空间群P-1,晶体学参数 a =1.0604(5) nm,b =1.3078(7) nm,c = 1.3742(47 nm,α=105.174(12)?,β = 90.229(7)?,γ=101.028(6)?,Z = 1,V =1.8025(15) nm3,Dc=1.522Mg•m-3,?(MoKa)= 1.423 mm-1,F(000)= 834,R1=0.0455,wR2=0.1017。化合物是三个以Sn2O2构成的平面四元环组成的梯状结构,锡原子均为五配位的畸变三角双锥构型。测定了配合物的体外抗癌活性,结果表明配合物对WiDr和MCF-7等癌细胞有一定的抑制能力。     

三环己基锡吡啶-4-甲酸酯聚合物的合成、结构和量子化学研究

双齿配体吡啶-4-甲酸与三环己基氢氧化锡反应,合成了三环己基锡吡啶-4-甲酸酯聚合物[Cy3Sn(O2CC5H4N)]n(Cy为环己基)。经IR、1H NMR、元素分析和X射线衍射表征结构,晶体结构属单斜晶系,空间群P21/c,晶体学参数:a=1.222 4(4)nm,b=0.980 9(5)nm,c=2.089 9(9)nm,β=107.238(3)°,Z=4,V=2.393 6(4)nm3,Dc=1.360 g.cm-3,μ(Mo Kα)=1.085 mm-1,F(000)=1 016,R1=0.028 2,wR2=0.068 4。中心锡原子为五配位三角双锥构型,通过吡啶-4-甲酸的1个氧和吡啶氮原子配位成链。两条相邻的链之间经氢键(C-H…O)作用组成"双链"结构,"双链"之间通过环己基H与另链的吡啶环发生σ→π作用形成二维结构。利用量子化学G98W软件,在lan12dz基组对配合物的稳定性、前沿分子轨道组成及能量进行研究。     

Synthesis,Crystal Structure and Quantum Chemical Study of the Ladder Organotin Compound {[（C6H5CH2）2Sn]2（O）（Cl2）}2

The title compound {[（C6H5CH2）2Sn]2（O）（Cl2）}2 has been synthesized by the reaction of bisbenzyltin dichloride with NaOH dilute solution, and its structure was determined by X-ray diffraction. The crystal belongs to monoclinic, space group C2/c, with a = 2.5081（17）, b = 1.0089（7）, c = 2.0909（14） nm, β = 94.267（8）°, V= 5.276（6） nm^3, Z = 4, De= 1.734 g/cm^3,μ（MoKa） = 21.55 cm^-1, F（000） = 2704, R = 0.0398 and Rw = 0.1024. According to structural analysis, the tin atom adopts a distorted five-coordinate trigonal bipyramidal geometry, and the ladder-like structure is shaped by one planar four-membered Sn2O2 ring together with two planar four-membered Sn2OCl rings.     

两个有机锡呋喃-2-甲酸酯化合物的合成、结构及量子化学研究

氧化双[三(2-甲基-2-苯基)丙基锡]、三苄基氯化锡分别与呋喃-2-甲酸反应,合成了配位聚合物{[(C4H3O)CO2]Sn(CH2CPhMe2)3}n(1)和{[(C4H3O)CO2]Sn(CH2Ph)3}n(2)。经IR、1H NMR、元素分析和X射线衍射表征结构。1和2均属单斜晶系,配合物1空间群P21/n,晶体学参数:a=1.122 06(7)nm,b=1.747 60(11)nm,c=1.632 62(10)nm,β=91.503(3)°,Z=4,V=3.200 3(3)nm3,Dc=1.306 g.cm-3,μ(Mo Kα)=0.829 mm-1,F(000)=1 304,R1=0.023 9,wR2=0.059 4。配合物2空间群C2/c,晶体学参数:a=2.939 49(13)nm,b=1.035 36(4)nm,c=1.976 64(9)nm,β=129.582(2)°,Z=8,V=4.636 4(3)nm3,Dc=1.442 g.cm-3,μ(Mo Kα)=1.125 mm-1,F(000)=2 032,R1=0.024 2,wR2=0.060 6。配合物1和2的中心锡原子分别为四面体和三角双锥构型。通过分子间氢键作用,1和2分别形成三维结构。对配合物进行了量子化学从头计算,探讨了配合物的稳定性、分子轨道能量及一些前沿分子轨道的组成特征。     

Synthesis, characterization, and hydrolytic behavior of mixed-ligand diorganotin esters, [R2Sn(O2CR')OSO2Me]2 (R=n-Pr, n-Bu; R'=C9H6N-2, 4-OMe-C9H5N-2, C9H6N-1)

Reactions of the tin precursors, R2Sn(OMe)OSO2Me (R=n-Pr, n-Bu), with an equimolar quantity of 2-quinoline/4-methoxy-2-quinoline/1-isoquinoline carboxylic acid in acetonitrile proceed under mild conditions (rt,12-15 h) via selective Sn-OMe bond cleavage to afford the corresponding mixed-ligand diorganotin derivatives [R2Sn(O2CR')OSO2Me]2 [R'=C9H6N-2, R=n-Pr (1), n-Bu (2); R'=4-OMe-C9H5N-2, R=n-Pr (3), n-Bu (4); R'=C9H6N-1, R=n-Pr (5), n-Bu (6)]. These have been characterized by FAB mass, IR, and multinuclear (1H, 13C, 119Sn) NMR spectral data and X-ray crystallography (for 4 and 6). The molecular structure of 4 (C20H29NO6SSn, monoclinic, P2(1)/n, a=14.1(13) A, b=16.7(18) A, c=20.3(19) A, beta=107(4) degrees, Z=8) comprises distorted octahedral geometry around each tin atom by virtue of weakly bridging methanesulfonate [Sn(1A)-O(3B)=3.010, Sn(1B)-O(3A)=2.984 A] and (N,O) chelation of the carboxylate ligands. The spectral data of 1-4 suggest a similar structural motif in solution. The molecular structure of 6 (C38H53N2O10S2Sn2, monoclinic, P2(1)/c, a=11.339(2) A, b=14.806(3) A, c=24.929(5) A, beta=100.537(3) degrees, Z=4) reveals varying bonding preferences with monomeric units being held together by a bridging methanesulfonate [Sn(2)-O(5)=2.312(2) A] and a carboxylate group bonded to Sn(1) and Sn(2) atoms, respectively. Slow hydrolysis of compound 2 derived from 2-quinoline carboxylic acid in moist CH3CN affords the asymmetric distannoxane, [Bu2Sn(O2CC9H6N-2)-O-Sn(OSO2Me)Bu2]2 (7) (C27H45NO6SSn2, monoclinic, C2/c, a=21.152(3) A, b=13.307(2) A, c=26.060(4) A, beta=110.02(10) degrees, Z=8) featuring ladder type structural motif by virtue of unique mu2-coordination of covalently bonded oxygen atoms [O(6), O(6)#1] of the methanesulfonate groups.     

二{氧合-二[3-二茂铁基丙烯酸二正丁基锡(Ⅳ)]} 配合物的晶体结构及溶液中的 配位互变平衡机理

测定了配合物{[(n-Bu)2Sn(FcCH=CHCO2)]2O}2(Fc=Ferrocenyl)晶体结构,它属三斜晶系,空间群P1,晶胞参数a=1.3943(3)nm,b=1.4635(3)m,c=1.2792(3)nm,α=94.32(3)°,β=116.27(3)°,γ=109.08(3)°,Z=2,V=2.1362(8)nm^3,Dc=1.542g/cm^3,F(000)=1004。最终偏差因子R=0.0401,Rw=0.1076。该分子中存在着内环锡和外环锡配位单元,锡原子均形成具有假六配位的单加帽畸变三角双锥配位构型。Sn2O2中心内环与丙烯酸酯基茂环等共轭体系之间相互未能共平面。配合物中四个羧基配体划分为两类：两个为桥式双齿配位(μ-COO),跨接于一个内环锡和一个外环锡;另两个仅以单齿配位方式各连接一个外环锡。根据核磁共振谱信息表明分子在溶液中存在着配位互变异构体之间的快交换。我们提出振动模式的假说,认为可能是羧酸酯基氧在其平面内快速摇摆建立了动态平衡之故。     

Synthesis and Crystal Structure of (CO)5ReSnMe2Re(CO)5

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基于3，4-吡啶二羧酸配体的钆(Ⅲ)配合物的合成、晶体结构及热性质

The hydrothermal reaction of pyridine-3,4-dicarboxylic acid (pydcH₂), 4,4′-bipyridine and GdCl₃·6H₂O yield a novel gadolinium coordination polymer {[Gd₂(pydc)₂(μ₃-OH)₂(H₂O)₂]·H₂O}_n(1). The compound was chara-cterized by elemental analysis, thermal analysis, IR spectra and single-crystal X-ray structure analysis. The crystal of the Gd(Ⅲ) complex belongs to triclinic system, space group P1 with: a=0.796 25(16) nm, b=0.944 46(19) nm, c=1.262 1(3) nm, α=76.50(3)°, β=84.95(3)°, γ=83.04(3)°, Z=2, V=0.914 4(3) nm³, D_c=2.669 g·cm^-1, μ=7.269 mm^-1, F(000)=692, and R₁=0.033 3, wR₂=0.062 3. The crystal structure revealed that compound 1 has a 2D layer structure incorporating 1D Gd-O-Gd double chain, and hydrogen bonding interactions result in the former of 3D supramolecular network structure. CCDC: 669079.     

过渡金属配合物为模板合成两个新的硫代锡酸盐(英)

利用溶剂热方法在温和的条件下合成了二个新的硫代锡酸盐[Mn(en)₃]₂Sn₂S₆·2H₂O(en=H₂NC₂H₄NH₂) (1)和[Mn(dien)₂]₂Sn₂S₆ (dien=H₂NC₂H₄NHC₂H₄NH₂) (2)，通过X-射线衍射分析表征其晶体结构。化合物1的晶体学参数：C₁₂H₄₈Mn₂N₁₂S₆Sn₂·2H₂O，M_r=936.28，单斜晶系，P2₁/c，a=1.012 9(3)，b=1.574 6(4)，c=1.152 4(3) nm，β=102.36(1)°，V=1.795 5(8) nm³，Z=2，D_c=1.732 g·cm^-3，μ(MoKα)=2.442 mm^-1，F(000)=940，R=0.063 3，wR=0.081 4；化合物2的晶体学参数：C₁₆H₅₂Mn₂N₁₂S₆Sn₂，M_r=952.32，单斜晶系，P2₁/c，a=1.248 12(3)，b=0.937 60(4), c=1.776 17 (7) nm，β=121.752(2)°，V=1.767 5(1) nm³，Z=2，D_c=1.789 g·cm^-3，μ(MoKα)=2.479 mm^-1，F(000)=956，R=0.057 9，wR=0.137 4。在两个化合物中存在的[Sn₂S₆]^4-阴离子均由共边的两个SnS₄四面体构成。在1中，锰离子螯合3个乙二胺做为阳离子模板，而在2中锰离子螯合2个二乙烯三胺做为阳离子模板。金属配合物作为模板对阴离子[Sn₂S₆]^4-在晶体结构中的排列产生重要的影响。     

(Z)-1-[2-(三苯基锡基)乙烯基]-1-茚满醇及其酯和卤代物的合成与表征

在氮气保护下,1-乙炔茚满醇与三苯基氢化锡进行游离基加成反应,获得加成物(Z)-1-[2-(三苯基锡基)乙烯基]-1-茚满醇(1);将加成物(1)与苯酐反应,得到新型邻苯二甲酸单酯有机锡衍生物(2);衍生物(2)分别与二丁基氧化锡和三苯基氧化锡进行脱水反应,分别获得两个新型邻苯二甲酸酯的有机锡衍生物(3)和(4).将加成物(1)与卤素反应后,与锡原子直接相连的苯基被取代,得到一卤代和二卤代物(5～10).通过元素分析、¹HNMR和IR等手段对化合物1～10进行了结构表征,确定了该类邻苯二甲酸单酯和邻苯二甲酸酯的有机锡衍生物的结构.并测定了加成物(1)和一溴代物(6)的晶体结构,在加成物(1)中,由于分子内存在较弱的O→Sn[0.2778(8)nm]配位作用,锡原子呈扭曲三角双锥构型.在一溴代物(6)分子中,存在分子内O→Sn[0.2364(2)nm]配位键,锡原子呈扭曲的三角双锥构型.该系列化合物分子内的O→Sn配位能力和Lewis酸性强弱的顺序为:二卤化物>一卤化物>加成物;氯代物>溴代物>碘代物>加成物.     

鼓形有机锡氧杂环羧酸簇合物[PhCH2Sn(O)(O2CC4H3S)]6·2CH2Cl2 和 [PhCH2Sn(O)(O2CC3H2NO)]6·2CH2Cl2的合成和晶体结构

利用三苄基氧化锡与2-噻吩甲酸和2-唑甲酸反应,合成了六聚体苄基锡氧2-噻吩甲酸酯(1)和六聚体苄基锡氧2-唑甲酸酯(2)鼓形簇合物.通过元素分析、红外光谱和X射线单晶衍射对其结构进行了表征.测试结果表明:化合物1属三斜晶系,空间群p1,a=1.2760(3)nm,b=1.3056(3)nm,c=1.3343(3)nm,α=105.65(3)°,β=96.27(3)°,γ=97.20(3)°,Z=1,V=2.0997(7)nm3,Dc=1.809g/cm3,μ=2.097mm-1,F(000)=1116,R=0.0651,wR=0.1292.化合物2属三斜晶系,空间群p1,a=1.2240(4)nm,b=1.3673(4)nm,c=1.3744(4)nm,α=107.760(4)°,β=98.069(5)°,γ=91.480(5)°,Z=2,V=2.1631(12)nm3,Dc=3.373g/cm3,μ=3.799mm-1,F(000)=2136,R=0.0382,wR=0.079.它们均为鼓形簇状结构,锡原子呈畸变的八面体构型.化合物1通过分子间S…S近距离作用,形成一维链状结构.     

溴化二水二(皮考林酰胺)合钴配合物的合成及晶体结构

用皮考林酰胺、六水合硝酸钴和苄基溴反应制得一种新配合物[(C6H6N2O)2Co(H2O)2].B r2,通过红外光谱、元素分析及X射线晶体衍射对化合物进行了表征.结构分析结果表明,配合物属单斜晶系,P2(1)/n空间群,晶胞参数为:a=0.647 61(5)nm,b=1.026 43(9)nm,c=1.264 14(11)nm,β=93.823 0(10),°V=0.838 44(12)nm3,Z=4,Dc=1.977 g/cm3,μ=5.812 mm-1,F(000)=490,R1=0.071 0,wR2=0.251 6.配合物中,Co(Ⅱ)离子为六配位的八面体构型;相邻单元间通过N—H…B r和O—H…B r氢键相互连结而形成三维网状结构.     

Syntheses,Crystal Structures,Anticancer Activities and DNA-Binding Properties of the Dibutyltin Complexes Based on Benzoin Aroyl Hydrazone

Dibutyltin benzoin benzoyl hydrazone complex I[C₆H₅（O）C=N-N=C（Ph）CH（Ph）O]₂[（n-Bu）₂Sn]₂and dibutyltin benzoin salicyl hydrazone complex II[2-（OH）-C₆H₄（O）C=N-N=C（Ph）CH（Ph）O]₂[（n-Bu）₂Sn]₂were synthesized and characterized by IR,¹H,¹³C and ¹¹⁹Sn NMR spectra,HRMS,elemental analysis and thermal stability analysis,and the crystal structures were determined by X-...