Synthesis and Crystal Structure of the Mixed-quadriligand Bismuth Complex [Bi(S_2CNEt_2)_2(NO_3)]·[1,10-Phen]

The mixed-quadriligand bismuth complex [Bi(S2CNEt2)2(NO3)]?[1,10-Phen] has been synthesized, and its crystal structure was determined by X-ray single-crystal diffraction. The crystal belongs to monoclinic, space group P21/n with a = 10.074(17), b = 15.05(2), c = 18.99(3) ?, β = 98.85(3)o, V = 2845(8) ?3, Z = 4, F(000) = 1464, Dc = 1.746 g/cm3, μ = 6.523 mm-1, R = 0.0333 and wR = 0.0703. In this complex, the bismuth atom is eight-coordinated in a capped distorted pentagonal bipyramidal geometry.

Bismuth-Complex-Incorporated Nanocellulose Sheet for Biomedical Application:A Review on New Nanocellulose Composites

Antibiotic resistance is one of the major issues in the medical field and a potential threat to human health.However,newly emerging antimicrobial compounds failed to combat antimicrobial resistance developed by bacterial pathogens.Recently,a bismuth-based complex has been developed to eradicate antimicrobial-resistant microorganism infections.The complex is known as organobismuth(III)phosphinate,which is said to be a potential broad-spectrum antimicrobial agent.This complex has been incorporated into the nanocellulose suspension to fabricate a biomedical composite for various applications.The composite can be fabricated by two methods namely vacuum filtration and spray coating.In this paper,the surface and topography of the composite are investigated and discussed in terms of SEM micrographs and their antimicrobial potential.This review focuses on the organo-bismuth nanocellulose composite and its biomedical application in the future.

Synthesis,Structure and Dielectric Properties of a Novel 1D Chain Bismuth(Ⅲ) Complex[(C_6H_6NO_2)_2·(BiCl_5)·2H_2O]_n

Under hydrothermal conditions,isonicotinic acid reacted with BiCl 3 to give 1D zigzag chain complex [（C 6 H 6 NO 2） 2 ·（BiCl 5）·2H 2 O] n （1）.Single-crystal X-ray determination shows that compound 1 crystal-lizes in the monoclinic system,space group C2/c with a=13.115（3）,b=19.957（4）,c=7.9374（16）,β=97.45（3）°,Z=4,V=2060.0（8） 3,C 12 H 16 BiCl 5 N 2 O 6,D c=2.162 g/cm 3,M r=670.50,λ（MoKa）=0.71073,μ=9.237 mm-1,F（000）=1272,R=0.0208 and wR=0.0503.Dielectric constant of compound 1 was measured at different conditions.Measurements on the dielectric properties of 1 showed that the 1D chain coordination polymer exhibited a dipolar chain relaxation process and a relatively high dielectric constant.

Synthesis and Crystal Structure of Novel Dimer of Bismuth(Ⅲ) Complex with Dithiotetrahydropyrrolocarbamate: [Bi(S_2CNC_4H_8)_2(NO_3)]_2

A novel dimer of the bismuth(Ⅲ) complex with dithiotetrahydropyrrolocarbamate, [Bi(S_2CNC_4H_8)_2·(NO_3)]_2, was synthesized and the crystal structure was determined by X-ray single crystal diffraction. The crystal belongs to a monoclinic system with space group P2_1/n, a=0.64718(13) nm, b=2.6738(6) nm, c=1.0423(2) nm, β=106.384(3)°, Z=4, V=1.730(3) nm^3, D_c=2.163 g/cm^3, μ=10.682 mm^(-1), F(000)=1072, R=0.0329, wR=0.0659. The structure shows a distorted pentagonal bipyramidal configuration with the seven-coordinated central Bi atom. In the crystal, the molecular packing in the unit cell reveals that the two adjacent molecules are symmetrically linked each other in the dimer by virtue of a couple of Bi-S interaction.

Research Progress on the Bismuth Containing Complex Oxide in Photocatalystic Technology

The photocatalytic degradation on the bismuth containing complex oxide was revised in detail including the synthesis and classification of photocatalyts, and then the photocatalytic reaction, scavenger, and the mechanism of reaction. In particular, the perspectives of photocatalytic degradation on the bismuth containing oxide were analyzed in detail.

Synthesis, Crystal Structure and DNA-binding Property of Bismuth(Ⅲ) Complex with p-Hydroxy-phenylacetic Acid

A bismuth（Ⅲ） complex 1 （H2-4,4＇-bipy）[Bi（HPPA）5]（H2PPA）.4H2O （H2PPA = p- hydroxy- phenylacetic acid, 4,4＇-bipy = 4,4＂-bipyridyl） was hydrothermally synthesized from p-hydroxy-phenylacetic acid （H2PPA）, Bi（NO3）3＂6H20 and 4,4＇-bipyridyl, and characterized by elemental analysis, IR, molar conductivity and TG. The single-crystal X-ray diffraction studies demonstrated that the complex is of monoclinic system, space group P21 with a = 10.928（7）, b = 22.558（7）, c = 11.313（7） A, β = 91.864（4）°, V = 2787.7（4） A3, Z = 2, C58H61BiN2O22, Mr = 1347.07, F（000） = 1364, Dc= 1.605 g/cm-3, p（MoKa） = 3.247 mm-1, the final R = 0.0269 and wR = 0.0540 for 9776 observed reflections with I 〉 2or（I）. The bismuth（I/I） is seven-coordinated with O atoms, forming a monocapped octahedral geometry. Complex 1 further forms a 3D supramolecular architecture by hydrogen bonds and π-π stacking interactions. Moreover, the interaction between the complex and DNA was studied by EtBr fluoescent probe.

Syntheses, Crystal Structures and Anticancer Activities of Dithiocarbamate Bismuth(Ⅲ) Complexes

Two novel complexes, [Bi（III）（S2CNBn Et）3] 1 and [Bi（III）（S2CNPPPy-2）3] 2, were synthesized and characterized by elemental analysis, IR, ^1H NMR, ^13C NMR, TG-DTG and X-ray single-crystal diffraction. The structure reveals that complex 1 belongs to the monoclinic system, space group P21/c with a = 11.457（5）, b = 17.437（8）, c = 33.439（14）, β= 98.499（8）o, Z = 4, V = 6607（5）3, Dc = 1.689 g·cm^-3, F（000） = 3328, μ= 5.742 mm^-1, the final R = 0.0906, w R = 0.1678 and S = 1.032. The structure indicates that complex 2 belongs to the triclinic system, space group P1 with a = 12.608（9）, b = 12.622（8）, c = 12.49（6）, α = 102.652（15）, β = 103.013（14）, γ = 109.698（10）o, Z = 1, V = 1762.3（19）3, Dc = 1.741 g·cm^-3, F（000） = 916, μ = 5.395 mm^-1, the final R = 0.048 2, w R = 0.1206 and S =1.046. In the two complexes, each six-coordinated Bi（III） atom adopts a pentagonal pyramidal configuration with six sulfur atoms from three ligands, and the dimmer structures are formed by weak interactions of Bi···S between two molecules. The anticancer activities of the two complexes were studied by evaluating their cytotoxicities against several human cancer cell lines using the MTT assay. Results indicated complex 2 showed moderate cytotoxic effects on the selected cancer cells.

Synthesis and X-ray Study the Complexes of ATP with Sb（Ⅲ） and Bi（Ⅲ）

Interaction of antimony and bismuth ions with Adenosine 5＇-triphosphate obtained complexes and X-ray method to explore these complexes.

Syntheses,Crystal Structures and Antibacterial Activities of Complexes [(C_9H_(18)NS_2)_3M(Ⅲ)](M = Sb and Bi)

Two novel complexes,[（C9H18NS2）3Sb（III）]（1） and [（C9H18NS2）3Bi（III）]（2）,were synthesized and characterized by elemental analysis,IR,TG and X-ray single-crystal diffraction.Both 1 and 2 crystallize in the monoclinic system,P21/c space group.The data for 1：a = 1.6964（3）,b = 1.02149（17）,c = 2.5650（3） nm,β = 121.824（8）°,Z = 4,V = 3.7766（10） nm^3,Dc = 1.293 g·cm^-3,F（000） = 1536,μ = 1.082 mm^-1,the final R = 0.0500,wR = 0.1562 and S =1.072.The data for 2：a = 1.6802（9）,b = 1.0256（6）,c = 2.5083（10） nm,β = 121.77（3）°,Z = 4,V = 3.675（3） nm^3,Dc = 1.486 g·cm^-3,F（000） = 1664,μ = 5.159 mm^-1,the final R = 0.0481,wR = 0.1055 and S =1.076.The coordinated geometry of the central M（III） with six sulfur atoms from three ligands is a distorted pentagonal pyramid configuration.The dimer structural system is formed by the weak interactions of M…S and C-H…S between two molecules.The complexes were valued for their antibacterial activities by agar-streak method.It was found that 1 is active against the four test bacterial organisms.

Polarographic behavior of 1,4,7-triazacycloanane-N,N',N"-tris (meth-ylphonic acid) (NOTP)-Bi(Ⅲ) complex

The polargraphic behavior of Bi(Ⅲ)-NOTP complex has been investigated inaqueous solution. It was found that under the conditions of pH 3.0 and of 0.02 mol/L NH_4Cl, theBi(Ⅲ)-NOTP system gives a sensitive second order derivative wave at -0.340 V(vs SCE), which isproved to be an adsorptive complex wave. The composition of the complex is Bi(Ⅲ):NOTP. Furthermore,the peak current is linear to the concentration of Bi(Ⅲ) in the range from 3.0x10^(-8) to5.0x10^(-6) mol/L. Artificial and practical samples have been detected with high sensitivity andreceptivity.

砷、锑、铋配合物的生物活性

合成新型砷、锑、铋的配合物并研究其构效关系与生物活性的作用机理,对于丰富生物无机化学内容、开发新的抗菌和治疗肿瘤的化学药物都具有重要的意义和价值。本文简要介绍了砷、锑、铋的化学性质,并综述了近年来砷、锑、铋的配合物在抗癌抗菌抗肿瘤等生物活性方面的应用,展望了其在该领域的应用前景。

二羟乙基二硫代氨基甲酸铋配合物的合成,晶体结构及杀菌活性

铋具有一系列的特殊性质,特别是铋的无毒性与不致癌性使铋具有特殊用途.铋化合物在医学中更是有特别的应用,铋药剂具有收敛,止泄,防腐作用,可吸附毒素,对细菌,病毒乃至锥虫及螺旋体等有极好的抑制与杀灭活性[1,2].在广泛使用的农用杀菌剂中,以二硫代氨基甲酸盐类及其类似物最为有效.鉴于铋在经济上与环境上有农用的可能性[3],而铋配合物的合成研究报道很少[4],我们将二者结合,合成了一种水溶性好,且有因配位后协同效应而增效的杀菌剂(Bi2(deadtc)6配合物A),并希望能制备该杀菌剂以水为溶剂的绿色环保水乳剂型.本文报道该配合物的合成,杀菌活性及晶体结构.

含铋复合氧化物可见光催化材料研究进展

光催化材料因可以利用太阳能净化环境,受到广泛关注.一些含铋复合氧化物半导体可直接被可见光激发,更有效地利用太阳能,实现有机污染物的矿化,成为近期光催化材料研究领域的热点之一.本文概述了Bi2WO6、BiVO4和Bi2MoO6三种常见的含铋复合氧化物可见光催化材料体系的近期研究进展.通过合成方法的优选、晶粒成核和生长的调节,实现晶粒尺寸、形貌、结晶度等微结构的控制,从而获得小尺寸、高表面积的光催化材料,无论是在有机染料、苯酚和乙醛等多种模拟污染物的矿化,还是抗菌等方面,它们皆呈现出优秀的可见光催化性能.通过进一步发展,含铋复合氧化物有望实现在环境净化领域的应用.

含铋(Ⅲ)配合物的合成及铋的配位性质

由于金属铋的绿色安全性,其配合物的应用领域不断扩大。因此,从分子水平探索配合物结构具有十分重要的意义。本文主要根据有机配体的不同,对三价铋离子配合物的合成及相应的结构进行分类概述,并针对固态铋配合物,对铋(Ⅲ)离子在各配合物中所处的配位环境以及与配体的配位方式等进行了综述。

一种席夫碱铋配合物的合成及其与牛血清白蛋白的相互作用

在非水体系中,以邻香草醛缩甘氨酸席夫碱与8-羟基喹啉、无水氯化铋合成一种三元配合物,通过元素分析、热分析、光谱分析等表征手段,确定其化学组成为[Bi（C_（10）H_（10_NO_4）（C_9H_6NO）_2]。席夫碱以酚羟基中的氧和C=N双键中的氮与铋（Ⅲ）成键,8-羟基喹啉以氧、氮与铋（Ⅲ）双齿配位,形成五元螯环。采用荧光法研究配合物与牛血清白蛋白（BSA）在不同温度下的相互作用,可知发生静态荧光猝灭,配合物与BSA以摩尔比1∶1结合形成复合物,结合常数为6.21×10^4L/mol,ΔH和ΔS均大于0,说明结合力主要为疏水作用;同步荧光扫描发现色氨酸残基的发射波长红移,表明复合物的形成导致BSA的构象发生了变化。

8-羟基喹啉铋的合成、表征与光谱研究

A new solid bismuth complex,[C9H8ON]3·2H2O,was synthesized by bismuth trichloride and 8-hydroxyquinoline(8-Hhq) in dilute HCl.The complex was characterized by elemental analysis,XRD,TG-DSC and FT-IR.The IR result shows that the heterocyclic nitrogen atom of 8Hhq bonds to H+,and coordinates with Bi3+.The fluorescent spectra and UV-Vis spectra of the title compound were carried out.

吡啶甲酸铋(Ⅲ)配合物的合成与表征

以不同类型的吡啶甲酸为配体,通过固液相、固固相反应,合成了两种新的铋配合物:α-吡啶甲酸铋[Bi(C5H4NCOO)3].H2O(1)、β-吡啶甲酸铋BiCl3.(C5H4NCOOH).1.5H2O(2)。用元素分析、X射线粉末衍射、红外光谱和热分析等手段对配合物进行了表征。配合物1为单斜晶系,相应晶胞参数:a=2.0999nm,b=0.9499nm,c=1.1815nm,β=104.999°;配合物2为单斜晶系,晶胞参数:a=1.8589nm,b=1.6889nm,c=1.2049nm,β=96.445°。同时初步分析了影响产物结构及性质的因素。

含铋双金属配合物的合成与表征

在水溶液中采用固液相反应法合成了二乙烯三胺五乙酸的含铋双金属配合物CaBi(dtpa).5H2O(1)和MnBi(dtpa).5H2O(2)。用元素分析、X射线粉末衍射、红外光谱、原子吸收和热重分析等方法进行表征,确定了配合物的组成和结构,并对XRD数据进行了指标化。结果表明:两种配合物均为单斜晶系,CaBi(dtpa).5H2O的晶胞参数为:a=1.2837 nm,b=0.8682 nm,c=1.3593 nm,β=97.909°;MnBi(dtpa).5H2O的晶胞参数为:a=1.4359nm,b=0.8666 nm,c=0.7369 nm,β=96.295°。

苦味酸铋的合成、分解反应动力学及热安全性(英文)

合成了苦味酸铋配合物(Bi-PA),对其结构进行了表征,并用TG-DTG及DSC技术研究了化合物的热行为和分解反应动力学。结果表明,在TG曲线上出现一个最大的失重阶段,对应于DSC曲线上的最大放热峰。放热分解反应过程可以认为是化学反应,其机理方程的微分式为f(α)=3(1-α)[-ln(1-α)]2/3,动力学方程为dα/dt=1013.51(1-α)[-ln(1-α)]2/3e-1.96×104/T。反应阶段的活化熵(ΔS≠),活化焓(ΔH≠)及活化自由能(ΔG≠)分别为2.25J.mol-1.K-1,159.82kJ.mol-1及158.60kJ.mol-1。

氨荒酸配合物([M(MeBnNCS2)3]，M=Sb(Ⅲ)，Bi(Ⅲ)的合成、晶体结构及抑菌活性

合成了2种新的N-甲基-N-苄基二硫代氨基甲酸锑[Sb(MeBnNCS2)3](1)和铋[Bi(MeBnNCS2)3](2)配合物。通过元素分析、红外光谱、1H NMR、热重对其进行表征,并用X-射线单晶衍射测定了晶体结构。配合物1和2均属于单斜晶系,P21/c空间群。配合物1的晶胞参数为:a=0.955 1(7)nm,b=1.357 5(10)nm,c=2.468 1(17)nm,β=104.01(2)°,Z=4,V=3.105(4)nm3,Dc=1.520 g·cm-3,F(000)=1 440,μ=1.314 mm-1,最终偏离因子R1=0.033 9,wR2=0.083 2,S=1.010;配合物2的晶胞参数为:a=1.339 0(6)nm,b=0.997 5(5)nm,c=2.426 1(5)nm,β=98.433(7)°,Z=4,V=3.205(2)nm3,Dc=1.653 g·cm-3,F(000)=1 568,μ=5.912 mm-1,最终偏离因子R1=0.039 8,wR2=0.086 4,S=1.089。在这2个配合物中,中心金属离子M(Ⅲ)与来自3个配体中的6个硫原子配位,配合物1形成6配位的畸变的八面体构型;配合物2则形成6配位的畸变的五角锥构型。在配合物2中,分子之间又通过Bi…S弱相互作用构成二聚体结构。利用琼脂扩散法测试了配合物的抑菌活性,结果表明配合物1对4种受试菌株具有较强的抑菌活性。