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1.
[Mn(H2O)(phen)2(PAc)](ClO4)的合成、红外光谱及晶体结构   总被引:4,自引:0,他引:4  
The complex [Mn(H2O)(phen)2(PAc)](ClO4) was synthesized and investigated by elemental analysis, molar conductivity, IR spectrum and X-ray diffraction methods, where phen=1,10-phenanthroline and PAc=phenylac-etate group. The complex crystallizes in the triclinic space group,P1 , with a=0.9289(2)nm,b=1.2425(2)nm,c=1.4791(3)nm,α=114.34(3)°,β=91.25(3)°,γ=104.65(1)°,V=1.4893(4)nm3,Z=2,F(000)=686,Dc=1.489g·cm-3,μ=0.589mm-1. The Mn(Ⅱ) ion has a six-coordinate distorted-octahedral geometry with the four nitrogen atoms of two phen ligands,a coordinated-water oxygen atom, and a carboxylate oxygen atom of PAc-. There is π-π stacking interaction between two phen rings from two neighbor molecules.  相似文献   

2.
利用三氰基铁酸盐(Bu4N)[Fe(Tp)(CN)3](Tp=氢化三(1-吡唑基)硼酸)与配体2,9-二吡唑基-1,10-菲咯啉(dpzpen)以及高氯酸镍反应合成了一例氰根桥联的Fe4Ni2六核配合物[Fe4Ni2(Tp)4(CN)12(dpzpen)2]·12H2O·3CH3OH(1)。结构研究表明配合物1具有近似菱形的Fe2Ni2骨架结构,另外2个Fe(Ⅲ)则通过氰根延伸在菱形的外侧。磁性研究表明在配合物1中氰根桥联的Fe(Ⅲ)和Ni(Ⅱ)表现出铁磁相互作用。更为重要的是,基于配合物1的结构模型,对它的变温磁化率数据进行拟合得到了不同Fe(Ⅲ)-Ni(Ⅱ)之间的磁耦合常数,得到的最佳磁耦合常数J3d (15.73 cm-1)>J2d (3.53 cm-1)≈J1d (3.50 cm-1)与Ni—N键的键长以及Ni—N≡C键角的变化趋势有关(J3d: 0.206 5 nm,169.8°; J2d: 0.206 2 nm,163.1°; J1d: 0.198 7 nm,161.6°)。以上结果表明Ni—N键长越短,Ni—N≡C键角越大,Fe(Ⅲ)与Ni(Ⅱ)之间的铁磁耦合越强。  相似文献   

3.
Two new trinuclear copper(Ⅱ) complexes bridged with N,N′-Bis(2-pyridylmethyl)-Dithiooxamidate, [Cu3L2](ClO4)2(1) and [Cu3L2](NO3)2(2) (H2L=N,N′-Bis(2-pyridylmethyl)-Dithiooxamide), have been synthesized, and characterized by elemental analyses, IR, UV-visible spectra, conductance and EPR spectra. The variable temperature magnetic susceptibility for complex (1) has been measured in the range of 1.5~298K. Experimental data of magnetic susceptibility are successfully fit to theoretical value based on the spin Hamiltonian operator: H=-2J(S1S2+S2S3)-2JS1S3, S1=S2=S3=1/2, giving the magnetic exchange parameters of 2J=-170 cm-1 and 2J′=-7.2 cm-1. This result indicates the presence of a strong antiferromagnetic spin exchange interaction between the Cu(Ⅱ) ions.  相似文献   

4.
基于一系列二氰根铬与[Cu(cyclam)](ClO4)2反应合成了3个氰根桥联Cr-Cu-Cr三核配合物[Cu(cyclam)][Cr(bpmb)(CN)2]2·4H2O(1)(cyclam=1,4,8,11-四氮杂环十四,bpmb2-=1,2-二(2-吡啶甲酰胺基)-4-甲基苯),[Cu(cyclam)][Cr(bpdmb)(CN)2]2(2)(bpdmb2-=1,2-二(2-吡啶甲酰胺基)-4,5-二甲基苯)和[Cu(cyclam)][Cr(bpClb)(CN)2]2·4H2O(3)(bpClb2-=1,2-二(2-吡啶甲酰胺基)-4-氯苯)。单晶衍射结果表明:3个化合物是结构类似的中性三核配合物,均含有氰根桥联的Cr(Ⅲ)-CN-Cu(Ⅱ)-NC-Cr(Ⅲ)连接;磁性研究表明:氰根桥在Cr和Cu离子间传递弱的铁磁耦合作用,基于自旋哈密顿算符Ĥ=-2JCrCuŜCuCr1Cr2)拟合得到它们的磁耦合常数分别是JCrCu=1.53(2) cm-1(1),0.45(1) cm-1(2)和0.73(2) cm-1(3)。  相似文献   

5.
Two new mononuclear Mn(Ⅱ) complexes Mn(phen)2(N3)2 (1) and [Mn(phen)2(N3)(H2O)]ClO4·H2O (2) have been synthesized and structurally characterized, where phen is 1,10-phenanthroline. Complex 1 crystallizes in the P1 space group, with lattice parameters a=8.1688(2)?, b=11.1218(2)?, c=12.6881(2)?, α=83.558(3)°, β=82.287(3)°, γ=73.643(3)°, V=1092.7(4)?3, Dc=1.518Mg·m-3, Z=2, F(000)=510, R1=0.0620, wR2=0.0958 (based on F2), S=0.981. Complex 2 crystallizes in the P1 space group, with lattice parameters a=8.6543(2)?, b=8.9767(2)?, c=17.5915(4)?, α= 93.399(3)°, β=102.806(3)°, γ=106.234(3)°, V=1268.7(4)?3, Dc=1.552Mg·m-3, Z=2, F(000)=606, R1=0.0672, wR2=0.1781 (based on F2), S=1.047. In complex 1, the Mn atom is coordinated by six nitrogen atoms of two phen molecules and two N3- ions with the Mn-N distances ranging from 2.142(4) to 2.318(4)?. The coordinated phen molecules of the adjacent Mn(phen)2(N3)2 moieties experience π-π stacking which is responsible for the crystal packing. In complex 2, the Mn atom is coordinated by five nitrogen atoms of two phen molecules and one N3- ion with the Mn-N distances ranging from 2.152(5) to 2.291(5)?. The approximately octahedral environment was completed by the oxygen atom of the coordinated water molecule with the Mn-O distance of 2.180(5)?. The hydrate water molecule is hydrogen-bonded to one of the O atoms of free ClO4- anion. ?  相似文献   

6.
The new six-coordinate complexes (TPP)Fe(Gly-OMe)2 C50H42FeN6O4 and (TPP)Fe(β-Ala-OMe)2 (C52H46FeN6O4) wbere TPP=meso-tetraphenyl porphyrinate, Gly-OMe=glycine methyl ester, β-Ala-OMe=β-alanine methyl ester and five-coordinte complex (TPP)Mn(Ⅱ)(Gly-OMe) (C47H35MnN5O2) have been prepared by sodium borohydride method.These complexes were characterized by UV-Vis, IR, ESR, spectra and by elemental analysis. The synthesized divalent iron porphyrins are d6 low spin states and their UV-Vis spectra are Hypso type; while divalent manganese porphyrin is d5 high spin state and its UV-Vis spectrum is pseudo-Normal type.  相似文献   

7.
Three new binuclearcopper(Ⅱ) complexesbridged by dithio-oxamidate(dto) group or biscyclohexanone oxalyldihydrazone (BCO)[Cu2(en)2(dto)](Cl O4)2·3H2O(1)、[Cu2(dien)2(dto)](ClO4)2·2H2O (2) and [Cu2 (bipy)2(BCO)(Cl O4)2](ClO4)2(3),where en, bipy and dien denote ethylenediamine,2,2′-bipyridyl and diethylentriamine respectively, were synthesized and characterized by elemental analysis,IR,electronicspectra and variable temperature magnetic susceptibility. Variable temperature (4.0-300K) magnetic susceptibility data for the complexes show that there exists the antiferromagnetic exchange interaction between the two copper(Ⅱ) ionswith J(cm-1) valuesof-0.462 (1)、-1.03 (2) and -6.86 (3). The preliminary study of the electrochemical characteristicsof complex (3) was also carried out.  相似文献   

8.
Complex {Mn(phen)2(H2O)[C8H11O2(COO)]}·(ClO4)·H2O with bicycle[2.2.1]hept-2-en-5,6-dicarboxylic acid [C7H8(COOH)2], perchlorate manganese and 1,10-phenanthroline(phen) has been synthesized by means of hydrothermal way and characterized. It crystallizes in the triclinic space group P1, with a=1.022 08(12) nm, b=1.241 49(14) nm, c=1.354 29(15) nm, α=112.724(9)°, β=91.173(6)°, γ=101.250(3)°, V=1.545 9(3) nm3Dc=1.553 g·cm-3, Z=2, F(000)=744. Final R1=0.042 2, wR2=0.101 5. GooF=1.080, The crystal structure shows that the cadmium ion is coordinated with one oxygen atoms from one C7H10(COOH)2 molecule, four nitrogen atoms from the two 1,10-phenanthroline, one oxygen atom from one water molecule, respectively, forming a distorted octahedral coordination geometry. The result of TG analysis shows that the title complex was stable under 200.0 ℃. CCDC: 653822.  相似文献   

9.
基于六氰根构筑单元[M(Ⅱ)(CN)6]4-与[Mn(Ⅲ)(salen)]+模块反应合成了2个新型酚氧和氰根混合桥联的M(Ⅱ)-Mn(Ⅲ)配合物{[Mn(Ⅲ)(salen)]4[Mn(Ⅲ)(salen)(H2O)]2[M(Ⅱ)(CN)6]}(ClO42·2H2O(M=Ru (1),Os (2),salen2-=双水杨酰胺乙基负离子)。单晶衍射结果表明:它们是结构类似的二维化合物,其中氰根桥联的七核[Mn(Ⅲ)6M(Ⅱ)]2+单元进一步通过双酚氧桥相互连接构成二维层状结构。磁性研究表明:2个化合物通过酚氧桥均呈现反常的反铁磁耦合,基于自旋哈密顿算符Ĥ=-2JMnMnŜMn1ŜMn2拟合得到它们的磁耦合常数分别是J=-0.340 cm-11)和-0.561 cm-12)。  相似文献   

10.
基于六氰根构筑单元[M(Ⅱ)(CN)6]4-与[Mn(Ⅲ)(salen)]+模块反应合成了2个新型酚氧和氰根混合桥联的M(Ⅱ)-Mn(Ⅲ)配合物{[Mn(Ⅲ)(salen)]4[Mn(Ⅲ)(salen)(H2O)]2[M(Ⅱ)(CN)6]}(ClO42·2H2O(M=Ru(1),Os(2),salen2-=双水杨酰胺乙基负离子)。单晶衍射结果表明:它们是结构类似的二维化合物,其中氰根桥联的七核[Mn(Ⅲ)6M(Ⅱ)]2+单元进一步通过双酚氧桥相互连接构成二维层状结构。磁性研究表明:2个化合物通过酚氧桥均呈现反常的反铁磁耦合,基于自旋哈密顿算符Ĥ=-2JMnMnŜMn1ŜMn2拟合得到它们的磁耦合常数分别是J=-0.340 cm-1(1)和-0.561 cm-1(2)。  相似文献   

11.
Two Trinuclear copper(Ⅱ) complexes bridged with N,N′-Bis(2-pyridylethyl)-Dithiooxamidate, [Cu3L2](ClO4)2 (1) and [Cu3L2](NO3)2 (2) (H2L=N,N′-Bis(2-pyridylethyl)-Dithiooxamide), have been synthesized, and characterized by elemental analyses, IR, UV-Visible spectra, conductance and EPR spectra. The variable temperature magnetic susceptibility for complex 1 has been measured in the temperature range of 1.5~298 K. Experimental data of magnetic susceptibility are successfully fit to theoretical value based on the spin Hamiltonian operator:(?), S1=S2=S3=1/2, giving the magnetic exchange parameters of 2J=-221.6 cm-1 and 2j=-15.8 cm-1. This result indicates the presence of a strong antiferromagnetic spin exchange interaction between the Cu(Ⅱ) ions.  相似文献   

12.
Three binuclear Nickel(Ⅱ) complexes were synthesized, bridged with dithiooxalate, Ni2(Bpy)3(Dto)2(H2O)3(1), Ni2(Phen)3(Dto)2(H2O)3(2) and Ni2(Me2Bpy)3(Dto)2(H2O)2 (3) (Bpy=2,2′-Bipyridine, Phen=1,10-phenanthroline, Me2Bpy=4,4′-dimethyl-2,2′-bipyridine, Dto2-=Dithiooxalate), and characterized by elemental analyses, IR, UV-Visible spectra, conductance. The variable temperature magnetic susceptibilities for the complexes were measured in the range of temperature between 1.5 K and 298 K. Experimental data of magnetic susceptibility were successfully fit to theoretical value based on the spin Hamiltonian operator:(?), S1=S2=1, giving the magnetic exchange parameters of 2J=-52.8 cm-1. This result indicates the presence of a strong antiferromagnetic spin exchange interaction between the Ni(Ⅱ) ions. The magnetic exchange parameters of the binuclear Nickel(Ⅱ) complexes bridged with dithiooxalate is larger than that of the binuclear Nickel(Ⅱ) complexes bridged with oxalate. Dithiooxalate is more effective to transfer antiferromagnetic spin exchange interaction between the Ni(Ⅱ) ions than oxalate.  相似文献   

13.
The title compound, [Mn4(O2CH)4(phen)8](ClO4)4·6H2O(1), where phen=1,10-phenanthroline, was synthes-ized and its crystal structure was determined by X-ray diffraction structure analysis. The crystal is of monoclinic, space group P2/c with a=1.928 0(16) nm, b=1.297 0(11) nm, c=2.126 4(18) nm, V=5.242 2(8) nm3, Z=2, Mr=2 347.36, Dc=1.487 g·cm-3, μ=0.659 mm-1, F(000)=2 400, Rint=0.043 7, R=0.052 3, wR=0.118 6. The Mn atoms are octahed-rally coordinated by two O atoms of two ligands and four N atoms of two 1,10-phenanthroline molecules. The carboxyl group coordinates to Mn(Ⅱ) in the bridging bidentate mode. CCDC: 675520.  相似文献   

14.
The Interaction of three complexes [Cu(phen)(Gly)(H2O)]·ClO4·2.5H2O (1), [Cu(phen)(L-Val)(H2O)]·ClO4 (2) and [Cu(phen)(L-Ile)(H2O)]·ClO4 (3) (phen=1,10-phenanthroline, Gly=glycinate, L-Val=L-valinate, L-Ile=L-isoleucinate) with DNA have been investigated by electronic absorption spectroscopy, ethidium bromide(EB) fluorescence spectroscopy, viscosity and gel electrophoresis measurements. The intensity of maximal absorption peaks from absorption spectra are weakened with dropping DNA into the complexes. The emission intensity of EB-DNA systems in fluorescence spectroscopy have descended 50%, when the data of CCu / CDNA is 30~40. Moreover, the viscosity of DNA increase and then decrease with the increasing of complexes. All of the results indicate that the interaction of complexes with DNA are partial intercalation, and the result of agarose gel electrophoresis show that the complexes can cleave pBR322 DNA in the present of H2O2 / vitamin C.  相似文献   

15.
外消旋大环镍(Ⅱ)配合物[Ni (rac-L)](ClO4)2分别与l-和d-扁桃酸阴离子在乙腈/水溶液中反应,通过手性识别得到六配位的[Ni (RR-L)(S-Man)]ClO4(1)和[Ni (SS-L)(R-Man)]ClO4(2)对映异构体(L=5,5,7,12,12,14-六甲基-1,4,8,11-四氮杂环十四烷,Man=扁桃酸)。当[Ni (rac-L)](ClO4)2dl-扁桃酸阴离子反应时得到一对对映体等量存在的共聚物,其中大环配体中RRSS构型分别优先与l-和d-Man- 配位形成外消旋混合物,反应过程中发生了手性识别现象,每颗晶体均为手性对映体。当[Ni (rac-L)](ClO4)2分别与结构类似的dl-2-苯基丙酸和dl-托品酸阴离子反应时,分别得到化合物[Ni (rac-L)(dl-PPA)]ClO4(3)(PPA=2-苯基丙酸)和[Ni (rac-L)(dl-Tro)]ClO4(4)(Tro=托品酸)。X射线单晶衍射结果表明,4个配合物中Ni (Ⅱ)离子均与折叠大环配体L的4个氮原子和2个来自羧基与羟基的氧原子(12),或羧基氧原子(34)顺式配位,形成六配位八面体构型。配合物12属于一对对映异构体,分别通过[Ni (RR-L)(S-Man)]+和[Ni (SS-L)(R-Man)]+分子间氢键作用形成一维之字形链状结构。配合物12的单手性特征与圆二色(CD)谱测定结果一致。  相似文献   

16.
外消旋大环镍(Ⅱ)配合物[Ni (rac-L)](ClO4)2分别与l-和d-扁桃酸阴离子在乙腈/水溶液中反应,通过手性识别得到六配位的[Ni (RR-L)(S-Man)]ClO4(1)和[Ni (SS-L)(R-Man)]ClO4(2)对映异构体(L=5,5,7,12,12,14-六甲基-1,4,8,11-四氮杂环十四烷,Man=扁桃酸)。当[Ni (rac-L)](ClO4)2dl-扁桃酸阴离子反应时得到一对对映体等量存在的共聚物,其中大环配体中RRSS构型分别优先与l-和d-Man- 配位形成外消旋混合物,反应过程中发生了手性识别现象,每颗晶体均为手性对映体。当[Ni (rac-L)](ClO4)2分别与结构类似的dl-2-苯基丙酸和dl-托品酸阴离子反应时,分别得到化合物[Ni (rac-L)(dl-PPA)]ClO4(3)(PPA=2-苯基丙酸)和[Ni (rac-L)(dl-Tro)]ClO4(4)(Tro=托品酸)。X射线单晶衍射结果表明,4个配合物中Ni (Ⅱ)离子均与折叠大环配体L的4个氮原子和2个来自羧基与羟基的氧原子(12),或羧基氧原子(34)顺式配位,形成六配位八面体构型。配合物12属于一对对映异构体,分别通过[Ni (RR-L)(S-Man)]+和[Ni (SS-L)(R-Man)]+分子间氢键作用形成一维之字形链状结构。配合物12的单手性特征与圆二色(CD)谱测定结果一致。  相似文献   

17.
以取代的二硫代草酰胺根作为桥联配体, 合成了3种新的三核镍配合物[Ni3(Ped)2](ClO4)2(H2O) (1)、[Ni3(Ped)2](NO3)2(H2O) (2)和[Ni3(Ped)2](Ac)2(H2O)2 (3),及2种新的异三核铜镍和铜锰配合物[CuNi2(Ped)2](NO3)2(H2O)2 (4)和[CuMn2(Ped)2](NO3)2(H2O)2 (5) (H2Ped =N,N′-双(2-吡啶乙基)二硫代草酰胺)。通过元素分析、红外光谱、紫外可见光谱、电导、电子顺磁共振谱等对配合物进行了表征,对配合物进行了热分析。测定了配合物(5)的变温磁化率,研究了配合物(5)中Cu(Ⅱ)-Mn(Ⅱ)离子间的磁相互作用,结果表明在Cu(Ⅱ)-Mn(Ⅱ)离子间的磁相互作用具有高自旋基态的非正规自旋态性质。  相似文献   

18.
李国鹏  张武  陶偌偈 《无机化学学报》2009,25(12):2215-2219
one new complex, [Cu(aeop)Ni(dpt)(H2O)]·5H2O, [H4aeop=N′-(2-Aminoterephthalic acid)-N″-(1,3-Pro-panediamine) Oxamide], has been prepared by the diffusion method, where (aeop)4- as bridging ligand, dpt as end ligand and characterized by elemental analysis, IR and X-ray crystal structure determination. It crystallizes in the Triclinic system, P1 space group with a=0.885 92(4)nm, b=1.232 53(6)nm, c=1.301 24(6)nm, α=85.593 0(10)°, β=78.753 0(10)°, γ=89.382 0(10)°, V=1.389 43(11) nm3, Z=2. The crystal structure analysis shows that intermolecular O-H…O and N-H…O hydrogen bonds result in a 3D supermolecular construction. The complex was characterized by magnetic susceptibility and presents a antiferromagnetic interaction (J=-46.4 cm-1, g=2.24). CCDC: 727559.  相似文献   

19.
使用C6H11CO2Na和bipy为配体与Mn(ClO4)2·6H2O在水热条件下反应,制备了双核化合[Mn2(O2CC6H11)2(bipy)4](ClO4)2(C6H11CO2H=环己烷甲酸;bipy=2,2’-联吡啶)。在双核阳离子[Mn2(O2CC6H11)2(bipy)4]2+结构中,锰原子之间通过两个环己烷甲酸根采取顺-反构型连接。该双核分子之间通过π-π堆积和弱C-H…O的氢键形成一个三维超分子网状结构。磁性质研究表明,锰离子之间存在弱反铁磁性耦合。  相似文献   

20.
新型铂(Ⅱ)类配合物的合成、表征和抗肿瘤活性   总被引:2,自引:0,他引:2  
Seven novel platinum(Ⅱ) complexes[Pt(Ⅱ)(NH3)(H2O)X](Ⅰ~Ⅶ) {X=(COO-)2(oxalato), 2p-CH3O-C6H4-COO-(p-methyoxbenzolato), 2C6H5-COO-(benzolato), 2CH3COO-(acetato), (CH2)(COO-)2(malonato), (CH2)2(COO-)2(succinato), (CH=CH)(COO-)2(maleato)} have been prepared and characterized by elemental analysis, thermal analysis,IR, UV, and 1H NMR spectroscopy. The antitumor activities of these complexes in vitro against EJ、HCT-8, KB, BGC-823, Bel-7402, HL-60, MCF-7 and Hela cell lines have been studied. Complex and show remarkable antitumor activities against EJ cell line, and the inhibitory rate is 45.96% and 54.32% at concentration of 10 μmol·L-1, respectively. The inhibitory rate of the complexes and is greater than 50% against HL-60, BGC-823, KB and EJ cell lines. The inhibitory rate of the complex is 51.89% and 57.96% against BGC-823 and EJ cell lines. The complexes and have no antitumor activities against tested tumor cell lines. The complexes Ⅱ, Ⅲ and can stem the cell cycle of HL-60 on the G2+M.  相似文献   

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