Synthesis and Crystal Structure of [EDA][Ni（dmit）2]3

The crystal structure of the compound [EDA][Ni(dmit)2]3 (EDA=2-diethylamino-1,3-dithioanylium; dmit=1,3-dithiole-2-thione-4,5-dithiolate)C25H14NNi3S32, has been determined by single crystal X-ray diffraction at 300K. The crystal is triclinic with space group P, a=11.252, b=12.192(2), c=20.055(6) , α=108.127(2), β=106.287(8), γ=90.005(9)°; V=2498.3(3) 3, Z=2, Mr=1530.38, Dc=2.03(2) g/cm3. Final R and Rw values were 0.0603 and 0.0704, respectively. The structure consists of thick layers of stacked Ni(dmit)2 entities separated by EDA cations. This salt shows semiconducting behaviour with room temperature conductivity of 0.2 Scm-1 and activation energy of 0.11 eV.     

Synthesis and Crystal Structure of Zn（Ⅱ） Complex with 2-Aminopyridine and Acetylacetone

1 INTRODUCTION As one kind of compound with extensive phy- siological and pharmacology activities[1], 2-amino- pyridine is easy to form complexes, and some of which may catalyse hydrolysis of ester[2]. Acetyl- acetone is an useful intermediate in the synthesis of sulfanilamide, additive and catalyst[3]. Complexes containing acetylacetone take on excellent lumines- cent properties[4]. To be an active center of some sig- nificant enzymes[5, 6], zinc takes the form of its su- pramolecular co…     

Synthesis and Crystal Structure of the Complex [Zn（DBSHSH）（py）2]

1 INTRODUCTION Salicylaldehyde salicyloylhydrazone (SHSH) and their deviatives show moderate fungicidal and anti- bacterial activities[1]. Rao has reported some novel lanthanoid complexes of salicylaldehydrazone. Va- rious polyhedral geometries such as distorted octa- hedron, pentagonal bipyramid and distorted square antiprism were tentatively proposed for the com- plexes used as excellent semi-conducting materials[2]. Tang has studied spectrofluorimetric determination of hydrogen perox…     

Synthesis, Crystal Structure and Fluorescent Properties of 1-（4-（Dimethylamino）benzylidene）- 4-（naphthalen- 1-yl） Thiosemicarbazide

1 INTRODUCTION Recently, for the fluorescent properties, Schiff base has been more and more important and widely studied in density optical memories, nonlinear op- tics (NLO), organic light-emitting diodes (OLED), polymer LED and electrogenerated chemilumines- cence (ECL)[1~5]. Thiosemicarbazones are a kind of Schiff bases with thiourea and good ligands easily chelating with transition metal ions. Although they have been studied extensively for a long time due to their chemical and b…     

Synthesis and Crystal Structure of One－dimensional Chain Complexes [K （18－C－6） ]2[M （mnt）2] （M=Zn, Hg）

The reactions of 18-crown-6 with each of K2[M (mnt)2] (M=Zn, Hg; mnt = 1,2-dicyanoethene-1,2-dithiolate, C2S2 (CN)2^2-) were studied and novel complexes [K(18-C-6)]2[Zn(mnt)2] (1) and [K (18-C-6)]2 [Hg(mnt)2] (2) were characterized by elemental analysis, IR spectrum and X-ray diffraction analysis. Complex 1 displays a one-dimensional chain of [K(18-C-6)]2[Zn(mnt)2] bridged by K-O interactions between adjacent [K(18-C-6)]^ units. Complex 2 is also a one-dimensional chain of [K(18-C-6)]2[Hg(mnt)2] bridged by K…S weak interactions between adjacent [K(18-C-6)]^ and [Hg(mnt)2]^2-.     

Synthesis and Stuctural Characterization of the Complex [Et4N]2[Ni（C2S

The heteroleptic dmit complex [Et4N]2[Ni2(C2S4)(C3S5)2] has been prepared by the reaction of NiCl2.H2O with Na2dmit, NaSC2H4OH in the MeOH solution. The compound has been characterized by X-ray diffraction study, IR and UV-Vis spectroscopy. Crystallographic data : space group: P21/n, a=11.843(2), b=11.079(1), c = 15.404(1)(), β=110.33(1)°, V = 1895.1()3, Z=2, Dc=1.62 g/cm3, μ=17.6 cm-1, F(000)=956, R=0.052, Rw=0.061. In the structure of the title complex, the tto (tto=tetrathioxalato) ligand in bridging form is chelated to two nickel atoms and dmit (dmit=1,3-dithiole-2-thione-4,5-dithiolate) ligands coordinated to nickel atoms.     

Photooxidation of Transition Metal Complexes of 1,3-Dithiole-2-thione-4,5-dithiolate (dmit) and 1,2-Dithiole-3-thione-4,5-dithiolate (dmt)

Metall(II) bis-chelates of 1,3-dithiole-2-thione-4,5-dithiolate (dmit) and 1,2-dithiole-3-thione-4,5-dithiolate (dmt) undergo in CHCl₃/CH₃CN (ratio 1:24) photooxidation to the metal(III) bis-chelates when irradiated at 313 nm. No side reactions were observed. There is no correlation between the quantum yields of photooxidation and the electrochemical halve-wave potentials. This holds also in comparison to maleonitriledithiolato chelates.     

Synthesis and Crystal Structure of Zinc Complex [Zn（bipy）3][Zn（SCN）4]

1 INTRODUCTION The design and synthesis of metal-organic frame-work structure have been studied widely during thepast decade not only because of their intriguing ar-chitectures but also their unexpected properties forpotential practical applications in a wide number offields, such as asymmetric catalysis, magnetism, pho-toluminescence and so on[1～3]. These novel struc-tures can be rapidly and efficiently synthesized fromsimple subunits, where the metal ions, bi- or multi-dentate organic l…     

一种新的有机-无机混配配位聚合物[Zn(N3)2(bpp)]n的自组装及晶体结构(bpp=1，3-二吡啶丙烷)

A novel coordination polymer [Zn(N₃)₂(bpp)]_n[bpp=1，3-bis(4-pyridyl)-propane] was synthesized at room temperature and structurally characterized by means of X-ray single crystal diffraction. The results show that the polymer exhibits a linear chain structure; the Zn-Zn distance is 12.235?. Each Zn(Ⅱ) ion is coordinated by two nitrogen atoms from bpp ligands and two nitrogen atoms from azido (N₃^-) groups， the coordination geometry of Zn(Ⅱ) ion is a slightly distorted tetrahedron， the angles around Zn(Ⅱ) ions are from 103.27° to 121.37°. In the solid-state structure of the polymer， the linear chains are stacked with parallel mode along a direction. Moreover， between adjacent chains， there are π-π interactions between pyridine rings， which are arranged in face-to-face fashion with interplanar distances of av. 3.821?. CCDC： 189591.     

Synthesis and Crystal Structure of 〔EDA〕〔Ni(dmit)_2〕_3

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1,3-二硫杂环戊烯-2-硫酮-4,5-二巯基的不对称二硫纶金属(Cd,Zn)配合物的热行为和热分解反应动力学

用TG-DTG-DTA联用技术研究了两种1,3-二硫杂环戊烯-2-硫酮-4,5-二巯基的不对称二硫纶金属(Cd,Zn)配合物在动态氮气气氛中的热行为,通过应用EDS技术和元素分析方法对热分解过程中各步反应中间体的组成进行了探索,并结合其物质结构进行了讨论。协同使用四种热分析动力学方法获得了各步反应的热分解动力学参数,并推断了它们的最可能分解反应机理。     

Synthesis and Crystal Structure of Bisaqua-[N,N'-bis(3,5-dichlorosalicylidene)-1,3-diaminopropano]zinc(II)

1 INTRODUCTION N,N?-Bis(salicylidene)-1,3-diaminopropane (BSDP) is a versatile tetradentate ligand, which forms stable complexes with a large number of transition metals[1～3]. However, the complexes related to the BSDP deriva- tive,N,N?-bis(3,5-dichlorosalicylidene)-1,3-diamino- propane (BCDP), have been seldom reported. The prime interest in these complexes is their ability to afford functional solid materials with potentially controllable properties and novel molecular struc- tur…     

叠氮和1-（4-吡啶基）-2-（2-苯甲氰基）乙烯锌(Ⅱ)配合物的合成与晶体结构(英)

The hydrothermal reaction of Zn(NO₃)₂, NaN₃, and 1-(4-pyridyl)-2-(2-cyanobenzene) ethylene (PCE), at the mole ratio 1∶2∶2 in methanol and water at 70 ℃ for two days afforded [Zn(PCE)₂(N₃)₂], the structure of which features a four-coordinated distorted tetrahedron geometry around zinc(Ⅱ). CCDC: 235945.     

4,5-二[2-(邻甲酰苯氧基)乙硫基]-1,3-二硫环戊烯-2-酮的合成及晶体结构

以水杨醛与1,2-二溴乙烷为反应物, 乙腈为溶剂, 在无水K₂CO₃存在下合成了2-溴乙氧基水杨醛(1), 1和二-(1,3-二硫杂环戊烯-2-硫酮-4,5-二硫)合锌酸四乙基铵盐在乙腈中回流, 得到新型的四硫富瓦烯(TTF)前体(2). 在Hg(OAc)₂存在下, 2可转化为4,5-二[2-(邻甲酰苯氧基)乙硫基]-1,3-二硫环戊烯-2-酮(3), 其结构经¹H NMR, FT-IR, 元素分析和单晶X射线衍射分析得到确证.     

配合物[1-(4′-bromo-2′-fluorobenzyl)pyridinium]2[Ni(mnt)2]和[1-(4′-bromo-2′-fluorobenzyl)pyrazinium]2[Ni(mnt)2](mnt2-=maleonitriledithiolate dianion)的合成及晶体结构

本文报道两个含双(马来二氰基二硫烯)镍(Ⅱ)配合物阴离子的离子对化合物。对阳离子为1-(4′-溴-2′-氟苄基)吡啶 盐时,生成配合物1。晶体数据:三斜晶系,空间P1群,a=0.7086(2)nm,b=1.0968(3)nm,c=1.1775(3)nm,α=69.914(5)°,β=89.495(5)°,γ=74.765(5)°,V=0.8259(4)nm³,Z=1。对阳离子为1-(4′-溴-2′-氟苄基)吡嗪鎓盐时,生成配合物2。晶体数据:单斜晶系,空间群P2₁/n,a=0.71554(17)nm,b=1.4262(3)nm,c=1.6725(4)nm,β=100.396(4)°,V=1.6788(7)nm³,Z=4。两个配合物中,阴离子为拟平面结构,镍原子均位于对称中心。变换对阳离子上的芳环种类对晶体的堆积结构产生影响。     

一维链状配位聚合物[M(H2bpb)(H2O)4](SO4)2·6H2O[M=Zn(Ⅱ)，Cu(Ⅱ)]的合成及晶体结构表征

设计并合成了一个含吡啶基团的柔性配体：N，N′-Bis(3-pyridylmethyl)-1，4-benzenedimethylamine(bpb)。通过bpb与硫酸锌及硫酸铜反应得到了两个新型具有一维链状结构的配位聚合物：[M(H₂bpb)(H₂O)₄](SO₄)₂·6H₂O[M=Zn(Ⅱ) 1，Cu(Ⅱ) 2]。X-射线晶体结构测定表明，这两个