六亚甲基桥连的希夫碱及其锰（Ⅲ）络合物催化剂的红外光谱研究

研究了六亚甲基桥连的希夫碱及其锰（Ⅲ）络合物催化剂的红外光谱，对一些主要谱带进行了经验归属。配体的分子内氢键谱带出现在～３４３８ｃｍ－１（以ＬＨ为例），νＣ＝Ｎ谱带在～１６３０ｃｍ－１（以ＣＨ为例，下同），苯的特征谱带在～１５９８，～１４６９和～７５５ｃｍ－１，νＭｎ—Ｎ为主的复合振动在～３６９ｃｍ－１，δＭｎ—Ｎ为主的复合振动在～２４７ｃｍ－１，νＭｎ—Ｏ为主的复合振动在～３２９ｃｍ－１，δＭｎ—Ｏ为主的复合振动在～２７５ｃｍ－１，νＭｎ—Ｃｌ特征谱带在～３０３ｃｍ－１。与苯基锰（Ⅲ）卟啉络合物相比，νＭｎ—Ｎ特征谱带向高波数位移，νＭｎ—Ｃｌ特征谱带则向低波数有较大位移。     

Donor Properties of Ligands and the Structure and Spectra of Uranyl Halogenides in the Solid State

Complexes of uranyl halogenides with neutral organic ligands in the solid state have been obtained, the luminescence spectra at T = 77 K have been recorded, and the dependences of them on the composition of the complex have been investigated. The linear dependence of the change in the frequencies of electron and vibronic transitions on the donor number of the neutral ligands has been revealed, thus allowing us to propose a spectral method for determining the structure of the system studied. It is shown that the increased strength of the bond of some halogen ligands (in particular, fluorine) with uranyl favors the nonsaturation of their inner coordination sphere. At the same time, the most stable complexes of the substances considered are formed when two halogen ions are supplemented with three molecules of organic ligand.     

Studies on Cu(II), Zn(II), Ni(II) and Co(II) complexes derived from two dipeptide Schiff Bases

Some new metal complexes of two dipeptide Schiff bases derived from salicylaldehyde and dipeptides such as glycyl-DL-alanine and glycyl-DL-phenylalanine have been synthesized and characterized by elemental analysis, molar conductance, IR, UV spectra, TG and DTA studies. The COO stretching bands in IR spectra suggest that the carboxylate acts as a monodentate group when binding with metal. The ligands are coordinated to the central metal as tetradentate ligands. The bonding sites are the carboxylate oxygen, imino nitrogen, amide nitrogen and phenolic oxygen.     

噻吩甲酰基吡唑啉酮缩乙二胺铀(Ⅵ)钍(Ⅳ)配合物的合成及光谱表征

合成了两种新双席夫碱配合物[UO2(PMTHP)2en]和[Th(PMTHP)2en(NO3)2]，其中（PMTHP）2en为N，N′-双[(1-苯基－3－甲基－5－氧－4－吡唑啉基）2－噻吩次甲基]乙二亚胺。通过元素分析，红外光谱，电子光谱，核磁共振谱，摩尔电导等测试，对新配合物的组成、结构和性质进行了表征。     

噻吩甲酰基吡唑啉酮缩β-丙氨酸配合物的合成、表征及极谱行为

在非水溶剂中 ,β 丙氨酸与 1 苯基 3 甲基 4 (2 噻吩甲酰基 )吡唑啉酮 5反应合成新型酰基吡唑啉酮席夫碱化合物 1 苯基 3 甲基 4 (2 噻吩甲酰基 )吡唑啉酮 5缩 β 丙氨酸 (HL) .通过回流席夫碱和金属硝酸盐合成了UO2 (Ⅱ )、Cu(Ⅱ )、Co(Ⅱ )和Fe(Ⅱ )金属配合物 .在乙酸 乙酸钠 (pH =4 .6 )缓冲溶液 饱和甘汞电极体系中 ,测量电位 - 1.2 4V处 ,测得铜配合物的极谱波 .元素分析及摩尔电导值表明 ,新配合物的组成为 [UO2 L2 ]·H2 O ,[CuL2 ]·2H2 O ,[CoL2 ]·2H2 O和 [FeL2 ]·2H2 O .运用红外光谱、紫外光谱、核磁共振谱、热谱和磁矩对配合物进行了表征 .结果表明 ,配合物的中心离子 (除UO2 2 + 以外 )均为 6配位 .铜配合物的Cu2 + 还原产生峰电流 ,其电极反应转移 1个电子 .     

吡喃酮类化合物与镱配合物的红外和拉曼光谱研究

采用非水体系中牺牲金属阳极的电化学方法分别合成了稀土金属镱与 3 羟基黄酮及 3 羟基 2 甲基 γ 吡喃酮的配合物。对配合物进行了IR和Raman光谱测定。两种光谱提供了互为补充的信息 ,配体经配位后—OH的伸缩振动谱峰消失 ,部分相关的谱峰频率发生了明显位移 ,特别是羰基伸缩振动红移十分明显 ,在Raman光谱的低波数区间检测到可指认为金属和配体键合的伸缩振动。根据这两种光谱的研究结果推断了所得配合物的可能结构。     

糠醛水杨酰腙锌（Ⅱ）和铅（Ⅱ）配合物的合成与光谱特性

由糠醛与水杨酰肼反应合成糠醛水杨酰腙席夫碱,然后再将其分别与过渡金属锌（Ⅱ）和铅（Ⅱ）作用合成两种新型的酰腙席夫碱配合物,并通过元素分析、紫外光谱、红外光谱等方法对所制备配合物进行表征。     

Synthesis and Fluorescence Properties of Eu<Superscript>3+</Superscript>, Tb<Superscript>3+</Superscript> Complexes with Schiff Base Derivatives

Novel Schiff base ligands derived from N′-benzylidene-benzohydrazide (substituted by –H, ?CH₃, ?OCH₃, ?Cl) and 2-chloro-N-phenylacetamide were synthesized. The solid complexes of rare earth (Eu, Tb) nitrate with these Schiff base ligands were synthesized and characterized by elemental analysis, EDTA titrimetric analysis, thermal analysis, infrared spectra and UV–Vis spectra analysis. The fluorescence properties of rare earth (Eu, Tb) complexes in solid were studied. Under the excitation of ultraviolet light, these complexes exhibited characteristic emission of europium and terbium ions. The results showed that the ligand favored energy transfer to the emitting energy of Eu and Tb ions. Effects of different ligands on the fluorescence intensity of rare earth (Eu, Tb) complexes had been discussed. The electrochemical properties of rare earth (Eu, Tb) complexes were also investigated.     

Cu(Ⅱ)及Zn(Ⅱ)与直链醚席夫碱配合物的合成与表征

合成了两种直链醚席夫碱双水杨醛缩二甘醇二胺(SALDA)和双水杨醛缩四甘醇二胺(SALTTA)及其新配合物[Zn(SALDA)](NO₃)₂·4H₂O和[Cu₃(SALTTA)(NO₃)₄](NO₃)₂·3H₂O.并以IR谱、UV谱,特别是¹H和¹³C NMR谱等方法进行了表征,并详细地讨论了合成方法,IR谱表明SALTTA中醚氧并未全部配位.     

Ligand Exchange and Nature of Luminescence Centers in the Crystals of Uranyl Nitrates and Perchlorates

We obtained complexes of uranyl nitrates and uranyl perchlorates with neutral ligands in crystalline and amorphous states and also with variable composition (as regards both water and the quantity of acid ligands entering into the first coordination sphere of UO₂ ²⁺). We studied their luminescence spectra at T = 77 K. Correlation between the frequencies of electronic and vibronic transitions and the donor numbers of neutral ligands has been established. The possible ways of replacing neutral ligands in the first coordination sphere of UO₂ ²⁺ have been analyzed as well as the composition and structure of the complex systems formed in this case.     

呋喃甲酰基吡唑啉酮缩氨基硫脲配合物的合成、光谱表征及生物活性

合成了含硫席夫碱试剂1-苯基-3-甲基-4-(α-呋喃甲酰基)吡唑啉酮-5缩氨基硫脲(HL)及其Zn(Ⅱ),Cd(Ⅱ),Co(Ⅱ)配合物。元素分析及摩尔电导值表明新配合物的组成为[ZnL₂]·1.5H₂O,[CdL₂]·C₂H₅OH和[CoL₂]·H₂O。运用红外光谱、紫外光谱、核磁共振谱和磁矩, 对配合物进行了表征。抗菌实验表明配合物具有较强的抗菌生物活性。     

新型多氮杂环金属配合物的合成及其光谱研究

采用溶液析出法,合成了以2-(2′-羟基-5′-甲基苯基)苯并三唑(HMPB)为配体的多氮杂环金属配合物M(HMPB)₂(M=Co, Ni),利用元素分析、激光解析飞行时间质谱等进行了表征,并研究了新配合物的红外特征光谱和紫外-可见电子吸收光谱。结果表明：HMPB配体通过N和O原子与中心金属以二齿形式配位,中心金属的配位数为4;配合物红外特征吸收谱带位于400～2 500 cm-1,形成金属配合物后,2-(2′-羟基-5′-甲基苯基)苯并三唑的羟基的伸缩振动吸收、CN振动峰和C─O特征吸收有明显改变,同时确定了配位键M─N和M─O的特征峰位置;配合物在紫外区有强吸收,其最大吸收峰位于335～345 nm。     

双酰胺稀土配合物的合成及荧光性能

为寻求发光性能良好的配合物,设计合成了一种新的双酰胺配体1,4-二 苯(L),并在氯仿和乙酸乙酯溶液中合成了其与硝酸钐、硝酸铕和硝酸铽的发光稀土配合物。元素分析数据表明稀土硝酸盐与配体形成的是 1 : 1 型的配合物;红外光谱显示配合物具有相似的配位结构。对配体及其配合物的荧光进行了详细的研究,结果表明:钐、铕和铽配合物分别呈现出Sm³⁺、Eu³⁺、Tb³⁺的特征发射,铕离子处于不对称中心格位,硝酸铽配合物荧光相对强度最大。     

Spectral Properties of Uranyl Nitrate Complexes with Tertiary Aliphatic Phosphine Oxides

The IR and Raman vibrational spectra of a number of uranyl nitrate complexes with tertiary aliphatic phosphine oxides in a solid phase and solutions have been investigated. It is found that the spectral characteristics of these complexes are independent of the state of aggregation of the substance. From the analysis of experimental and predicted data on vibrational spectra and application of the spectral signs of coordination of the NO₃ ^– ligand a conclusion is drawn on the formation of insular type structures. It is established that the presence of neutral organophosphorus ligands in the composition of the complexes does not exert any effect on the applicability of the spectral criteria of coordination of the nitrate acidoligand.     

Vibrational Spectra of Oxalate Complexes of Uranyl with Neutral Organophosphorus Ligands

The vibrational spectra of a number of polycrystalline oxalate complexes of uranyl with neutral organophosphorus ligands have been investigated. Based on the empirical formula of the compounds, the results of the analysis of experimental IR absorption spectra and Raman spectra, and the data of calculation of the frequencies and forms of normal vibrations, a possible structure of the complexes is suggested. A fragment of the structure of any member of this series can be represented as a polymer chain formed by bridge C₂O₄ ^2– groups. The coordination sphere of uranyl is complemented by the oxygen of phosphine oxide, and the hydrocarbon radical is positioned on either side of the polymer chain.     

铕镧苯甲酸α,α′-联吡啶配合物的合成及性质研究

在乙醇介质中合成了以Eu3+ 和La3+ 为中心体、苯甲酸和α ,α′ 联吡啶为配体的混合稀土配合物。测定了配合物的组成、研究了其紫外光谱和红外光谱。结果表明 ,配合物的组成为EuxLa1 -x(Dipy)L3·H2 O ,苯甲酸和α ,α′ 联吡啶的紫外吸收峰在配合物中分别位移了 2～ 9nm ;苯甲酸根羧基的反对称伸缩振动和对称伸缩振动在配合物中向低波数移动 ,而α ,α′ 联吡啶的CN振动则向高波数移动。这些事实表明 ,苯甲酸和α ,α′ 联吡啶与稀土离子配位。荧光测试表明 ,用不发光的镧离子取代该系列配合物中部分铕离子 ,在一定范围内 ,可以提高三价铕的特征荧光发射强度。这一结果也表明 ,在该系列配合物中 ,不仅配体可以将吸收的能量传递给发光的铕离子 ,使其发光 ,而且不发光的镧配合物也可将其吸收的能量通过分子内能量传递给铕离子 ,增强铕的发光强度。     

直链醚型Schiff碱与钴(Ⅱ)、镍(Ⅱ)配合物的合成、表征及其活性的研究

合成了双水杨醛缩二甘醇二胺(SALDA)及双水杨醛缩四甘醇二胺(SALTTA)两类直链醚型Schiff碱,并用于合成钴、镍的四种Schiff碱配合物,经分析,其组成为[M(SALDA)](NO₃)₂·H₂O和[M(SALTTA)](NO₃)₂·nH₂O,并以热重-差热分析、紫外、红外光谱以及核磁共振谱等方法研究了它们的配位作用.此类配合物能有效清除超氧阴离子自由基,具有明显的生物活性,并对甲基丙烯酸甲酯(MMA)聚合有催化效果,转化率~70%,分子量峰值可达100万.     

一维链状席夫碱锰（Ⅱ）配合物的合成及结构表征

以1S,2S-环己二胺和乙酰丙酮进行缩合得到N,N′-双（乙酰丙酮）-1S,2S-环己二胺的Schiff碱配体L,再将配体L与MnCl2.4H2O进行配位反应,得到了配合物[MnL2Cl2.L]n（1）,并用元素分析和X射线单晶衍射进行了表征。结果表明,配合物1属于正交晶系,空间群是P212121,晶体参数：a=1.56630（15）nm,b=1.59373（16）nm,c=2.1963（2）nm,V=5.4827（9）nm3,Z=4,Dc=1.164g.cm-3,R1=0.0548,wR2=0.1368。在配合物1中,每个Mn（）的配位环境都是三角双锥。配合物中双齿配体通过其两臂乙酰丙酮亚胺单元的端基氧原子同2个金属离子配位桥联形成一维螺旋链结构。     

Mössbauer investigation of novel pentadentate schiff base complexes

We synthesised a series of seven mononuclear and two trinuclear Schiff base coordination compounds. All nine complexes have been analysed by Mössbauer and IR spectroscopy. The Mössbauer spectra reveal a doublet, which are related to the high spin state (S = 5/2) of the iron(III) centres.     

锌盐与二甲氧基嘧啶配合物的光谱研究

无水乙醇中回流制得ZnCl_2和ZnSO_4与2-氨基-4,6-二甲氧基嘧啶(AMP)的1:2和1:1固态配合物,用化学分析和元素分析确定它们的组成分别为Zn(AMP)_2Cl_2(A)和Zn(AMP)SO_4(B);用IR,XPS和~1HNMR研究了它们的成键情况。IR光谱分析说明配合物中,配体通过氨基N原子及嘧啶环上一个N原子与Zn~(2 )双齿配位,配合物B中SO_4~(2-)参与了配位;XPS谱证明配合物A中和B中SO_4~(2-)均参与了配位,并且N→Zn~(2 )键中有不同程度的反馈键;~1H NMR说明配合物A中有2个配体参与配位,配合物B中只有1个配体参与了配位。由此推测了它们的可能结构。