稀土硝酸盐与邻香兰素缩邻氨基苯甲酸配合物的合成与表征

由邻香兰素缩邻氨基苯甲酸（以Ｈ２Ｌ表示）与稀土硝酸盐作用合成了３种新的固体配合物。对这些配合物进行了元素分析、红外光谱、紫外光谱、差热－热重及摩尔电导分析，确定配合物的组成为［Ｌｎ（ＨＬ）（ＮＯ３）（Ｈ２Ｏ）］ＮＯ３（Ｌｎ＝Ｔｂ，Ｈｏ，Ｌｕ）。推测了配合物的配位方式和结构     

Ln(Ⅲ)-Co(Ⅱ)与双水杨醛缩乙二胺Schiff碱异核配合物的合成与波谱性质

合成了双水杨醛缩乙二胺Ｓｃｈｉｆ碱（ＳＡＬＥＮ）与钴的配合物Ｃｏ（ＳＡＬＥＮ）（ＮＯ３）２·３Ｈ２Ｏ及镧系－钴的异核配合物ＬｎＣｏ（ＳＡＬＥＮ）２（ＮＯ３）５·２Ｈ２Ｏ（Ｌｎ＝Ｌａ，Ｎｄ，Ｓｍ，Ｇｄ，Ｙｂ，Ｙ）．以紫外、红外光谱，特别是１ＨＮＭＲ及ＥＰＲ波谱等方法研究了它们在组成、结构和配位等方面的异同．文中讨论了配合物ＥＰＲ谱在不同溶剂中峰宽的相对关系、配合物晶体场强度及Ｇｄ３＋周围局部对称性等问题．     

直链醚席夫碱与Ln3+-Zn2+异双核配合物的合成和表征

合成并表征了直链醚席夫碱双水杨醛缩二甘醇二胺与Ｌｎ＾３＋和Ｚｎ２＋的８种异双核配合物「ＬｎＺｎ（ＳＡＬＤＡ０２（ＮＯ３）３」（ＮＯ３）２．２Ｈ２Ｏ（Ｌｎ＝Ｐｒ,Ｓｍ,Ｇｄ,Ｔｂ,Ｅｒ,Ｙｂ,Ｙ）。以ＩＲ,ＵＶ光谱,特别是＾１Ｈ及＾１３ ＣＮＭＲ谱等方法研究并讨论了配合物的合成方法,组成,结构及配位方式。     

( )-12-乙基-1,4,7,10-四氧杂-13-氮杂环十五烷与镧系硝酸盐、硫氰酸盐配合物的合成表征和CD谱

合成了共１５个未见文献报道的三价镧系离子与手性氮杂冠醚（＋）－１２－乙基－１，４，７，１０－四氧杂－１３－氮杂环十五烷（以下以Ｌ（＋）表示）的配合物Ｌｎ（ＮＯ３）３·Ｌ（＋）·Ｈ２Ｏ（Ｌｎ＝Ｌａ、Ｃｅ、Ｐｒ、Ｎｄ）；Ｌｎ（ＳＣＮ）３·Ｌ（＋）·Ｈ２Ｏ（Ｌｎ＝Ｌａ、Ｐｒ、Ｎｄ、Ｓｍ、Ｅｕ、Ｇｄ－Ｅｒ、Ｙｂ）。对所合成配合物进行了元素分析、电导、红外、可见吸收光谱、比旋光度和圆二色谱（ＣＤ谱）的测试，并对配合物的有关物理化学性质进行了讨论。     

Ln（Ⅲ）—Co（Ⅱ）与以水杨醛缩乙二胺Schiff碱异核配合物的合成与波谱性质

合成了双水杨醛缩乙二胺Ｓｃｈｉｆｆ碱（ＳＡＬＥＮ）与钴的配合物Ｃｏ（ＳＡＬＥＮ）（ＮＯ３）２．３Ｈ２Ｏ及镧系－钴的异核配合物ＬｎＣｏ（ＳＡＬＥＮ）２（ＮＯ３）５．２Ｈ２Ｏ（Ｌｎ＝Ｌａ，Ｎｄ，Ｓｍ，Ｇｄ，Ｙｂ，Ｙ）以紫外红外光谱，特别是ＨＮＭＲ是ＥＰＲ波谱等方法研究了它们在组成、结构和配位等方面的异同，中讨论了配合物ＥＰＲ谱在不同溶剂中峰宽的相对关系，配合物在晶体场强度及Ｇｄ＾３＋周围局部对称性等     

Ln(NO_3)_3·C_(26)H_(38)N_2O_4(Ln=La、Ce)配合物的合成和La(NO_3)_3·C_(26)H_(38)N_2O_4·CH_3CN的晶体结构

合成了２个新的希土冠醚配合物Ｌｎ（ＮＯ３）３·Ｃ２６Ｈ３８Ｎ２Ｏ４（Ｌｎ＝Ｌａ、Ｃｅ；Ｃ２６Ｈ３８Ｎ２Ｏ４＝１，７，１０，１６－四氧－４，１３－二氮杂－Ｎ，Ｎ′－二苄基环十八烷）。通过元素分析，红外光谱，拉曼光谱及其１Ｈ核磁共振谱进行表征。用四圆衍射仪测定了Ｌａ（ＮＯ３）３·Ｃ２６Ｈ３８Ｎ２Ｏ４·ＣＨ３ＣＮ的晶体结构。晶体属三斜晶系，Ｐ１空间群，晶胞参数：ａ＝１．２８６９（４）ｎｍ，ｂ＝１．５８６８（６）ｎｍ，ｃ＝０．９１４７（２）ｎｍ；α＝１０１．８９（２）°，β＝１０５．３８（２）°，γ＝７１．９６（３）°；Ｚ＝２。ｄｃａｌｄ．＝１．５８ｇ·ｃｍ－３，μ（ＭｏＫα）＝１３．２５ｃｍ－１。中心镧离子与冠醚配体中的４个氧原子和２个氮原子配位，３个硝酸根中的６个氧原子也与Ｌａ３＋配位，形成配位数为１２的配合物。     

稀土组氨酸配合物的合成和性质研究

本文合成了十二个稀土与Ｌ－组氨酸（Ｌ－Ｈｉｓ）的固体配合物，元素分析结果表明配合物的组成为Ｌｎ（Ｈｉｓ）３（ＮＯ３）３２Ｈ２Ｏ（Ｌｎ＝Ｙ，Ｌａ，Ｃｅ，Ｐｒ，Ｎｄ，Ｓｍ，Ｅｕ，Ｇｄ，Ｔｂ，Ｄｙ，Ｅｒ，Ｔｍ）。并通过配合物的ＩＲ、ＵＶ、Ｈ－ＮＭＲ、ＴＧ－ＤＴＡ、磁化率及在水中的摩尔电导等的研究，表征了这些配合物的物理化学性质，结果表明稀土组氨配合物中配体通过羟基氧原子与镧系离子配位。     

几种稀土卟啉配合物的固相合成及电化学性质研究

在固相条件下合成了４种四（对甲氧基苯基）卟啉稀土（Ｌｎ＝Ｌａ＾３＋,Ｐｒ＾３＋,Ｎｄ＾３＋,Ｄｙ＾３＋）配合物。用元素分析、ＩＣＰ、ＵＶ及ＩＲ光谱进行表征,用循环伏安法研究了它们的电化学性能,实验结果表明,它们的电化学性质相似。在循环伏安图中出现了三对氧化还原峰。第一对为「Ｃ４８Ｈ３６Ｎ４Ｏ４Ｌｎ（Ⅲ）」＾＋／「Ｃ４８Ｈ３６Ｎ４ＯＬｎ（Ⅱ）」,第二为「Ｃ４８Ｈ３６Ｎ４Ｏ４Ｌｎ（Ⅱ）」／「Ｃ４８Ｈ３６Ｎ４Ｏ４Ｌｎ（Ⅰ）」＾－１,第三对为「Ｃ４８Ｈ３６Ｎ４ＯＬｎ（Ⅰ）」＾－／「Ｃ４８Ｈ３６Ｎ４ＯＬｎ」＾２－。     

镧系元素Dawson结构钨钒磷四元杂多配合物的合成,表征以…

合成了通式为Ｋ１５Ｈ３〔Ｃｅ（Ｐ２Ｗ１６ＶＯ６１）２〕．６１Ｈ２Ｏ、Ｋ１５Ｈ４〔Ｌｎ（Ｐ２Ｗ１６ＶＯ６１）２〕．ｘＨ２Ｏ（Ｌｎ＝Ｌａ＾３＋，Ｐｒ＾３＋，Ｎｄ＾３＋，Ｓｍ＾３＋，Ｅｕ＾３＋，Ｇｄ＾３＋，Ｄｙ＾３＋，Ｙｂ＾３＋）的９种镧系元素Ｄａｗｓｏｎ结构的钨钒磷四元杂多配合物，并用ＩＲ、ＵＶ、ＮＭＲ、ＥＳＲ、ＸＲＤ、ＴＧ－ＤＴＡ等对其结构和性质进行子研究。该类配合物具有与Ｋ１６〔Ｃｅ（Ｐ２Ｗ１７Ｏ     

Cu（Ⅱ）—Ln（Ⅲ）双核配合物的合成,磁性和抗菌活性

合成和表征了６种以草酰胺为桥联的异双核配合物Ｃｕ（ｏｘｅｎ）Ｌｎ（ｐｈｅｎ）２（ＣｌＯ４）３（ｏｘｅｎ代表Ｎ，Ｎ－双（２－氨乙基）草酰胺根阴离子；ｐｈｅｎ为１，１０－邻菲咯啉；Ｌｎ表示Ｙ，Ｌａ，Ｃｅ，Ｎｄ，Ｇｄ和Ｙｂ）测定了Ｃｕ（ｏｘｅｎ）Ｇｄ（ｐｈｅｎ）２（ＣｌＯ４）３．Ｈ２Ｏ的变温磁化率（４－３００Ｋ），并用最小二乘法和从自旋Ｈａｍｉｌｔｏｎｉａｎ算符Ｈ＝－２ＪＳ１。Ｓ２导出的磁方程拟合，求得     

含N-苯甲酰皮考林酰肼的钒酰、镍及锰配合物的合成和晶体结构

合成了3个含N-苯甲酰皮考林酰肼(简写为HL)的钒、镍和锰配合物[VO_2L](1,C_(13)H_(10)N_3O_4V,M_r=323.18),[NiL_2]·0.5CH_3OH(2,C_(26.5)H_(22)N_6NiO_(4.5),Mr=555.21)和[MnL_2]·0.5CH_3OH(3,C_(26.5)H_(22)MnN_6O_(4.5),Mr=551.44)。配合物1属三斜晶系,空间群为P1,a=0.71241(3)nm,b=0.89625(6)nm,c=1.11706(6)nm,α=94.715(2)°,β=102.053(2)°,γ=112.375(3)°,V=0.63461(7)nm~3,Z=2,F(000)=328,μ(MoKα)=0.802mm~(-1),R=0.0290,wR=0.0816;配合物2属单斜晶系,空间群为C2/c,a=2.5875(1)nm,b=1.4868(1)nm,c=1.8353(1)nm,β=134.470(4)°,V=5.2081(5)nm~3,Z=8,F(000)=2368,μ(MoKα)=0.795mm~(-1),R=0.0459,wR=0.1330;配合物3属单斜晶系,空间群为C2/c,a=2.60113(3)nm,b=1.45231(4)nm,c=1.92903(1)nm,β=132.824(1)°,V=5.3448(2)nm~3,Z=8,F(000)=2344,μ(MoKα)=0.543mm~(-1),R=0.0457,wR=0.1325。在配合物1中,钒(V)原子具有畸变的N_2O_3四角锥配位构型,晶体内每两个分子通过分子间氢键作用形成缔合分子对。在配合物2和配合物3中,镍(Ⅱ)原子和锰(Ⅱ)原子具有扭曲的N_4O_2八面体配位构型,晶体通过分子间氢键作用形成一维的无限链状结构。红外光谱表明,配体在形成配合物后,ν(C=O)和ν(C=N)红移。电     

Syntheses and crystal structures of 3-tert-butyl-4-cyano pyrazole and its complexes with cobalt(II), manganese(II), and copper(II)

A new pyrazole ligand, 3-tert-butyl-4-cyano pyrazole (Hpz^t-Bu,4CN), has been synthesized. The crystal structure of this pyrazole, along with the syntheses and crystal structures of Co, Cu, and Mn complexes of this ligand, are reported. The uncoordinated pyrazole shows the formation of a cyclic hydrogen-bound dimer. The Co complex is octahedral, with four coordinated pyrazoles and two coordinated waters. The Mn complex is octahedral, with two coordinated pyrazoles, two coordinated triflates and two coordinated waters. A hydrogen bonding network involving the triflates and waters results in a linear double chain of Mn complexes. The Cu complex has two coordinated pyrazoles and two coordinated chlorides in a slightly distorted square-planar geometry, with a long bond to the cyano N atom of a neighboring Cu complex, forming a pseudodimer.     

亚硝酰基钼、钨配合物及其铁杂核簇合物

一氧化氮具有电子给予体和受体的双重性质,在过渡金属配合物中亚硝酰基以线型或弯曲型端基,桥式或面桥式配基配位,很早便引起了结构化学家的注意。这些不同的键合模式影响亚硝酰基的反应能力,它可与亲电试剂如质子酸或路易斯酸反应,也可以与亲核试剂如碳阴离子反应。可以作为氧源与 CO 发生氧化还原反应减少内燃机废气污染,也可以与有机配体发生分子内插入反应,形成新的碳氮     

系列同三核铬、锰、铁羧酸配合物的FAB-MS研究

进行了系列同三核羧酸配合物〔Ｍ３Ｏ（Ｏ２ＣＲ）６Ｐｙ３〕Ｘ（Ｍ＝Ｃｒ,Ｍｎ,Ｆｅ;Ｒ＝ＣＨ３,Ｃ２Ｈ５,Ｃ６Ｈ５;Ｘ＝Ｃｌ－,ＣｌＯ４－;Ｐｙ为吡啶）的快原子轰击质谱（ＦＡＢ－ＭＳ）研究。获得了包括配位吡啶在内的完整阳离子峰。在研究其断裂规律时,主要观察到４个系列碎片离子：Ⅰ．〔Ｍ３Ｏ（Ｏ２ＣＲ）ｎ〕＋,ｎ＝６～２;Ⅱ．〔Ｍ３Ｏ（Ｏ２ＣＲ）ｎＯ〕＋,ｎ＝５～１;Ⅲ．〔Ｍ２Ｏ（Ｏ２ＣＲ）ｎ〕＋,ｎ＝３～１;Ⅳ．〔Ｍ２（Ｏ２ＣＲ）ｎ〕＋,ｎ＝４～２。通过对该系列配合物质谱断裂过程的比较和分析,获得了配合物稳定性随金属离子及配体的变化如下：金属离子,Ｃｒ＞Ｍｎ＞Ｆｅ;桥配基,－ＣＨ３ＣＯ２＞－Ｃ２Ｈ５ＣＯ２＞－Ｃ６Ｈ５ＣＯ２;端配基,Ｐｙ＞Ｈ２Ｏ。本研究及先前的工作〔１,８〕还为某些三核铬,铁羧酸配合物在以乙炔加水或加氢为探针反应中存在活性物种：〔Ｃｒ３Ｏ（Ｏ２ＣＲ）３～４〕,〔Ｆｅ３Ｏ（Ｏ２ＣＲ）３〕和〔Ｆｅ３Ｏ－（Ｏ２ＣＲ）Ｏ〕～〔Ｆｅ３Ｏ４〕提供了佐证     

系列异三核铬、锰、铁羧酸配合物的FAB-MS研究

进行了系列异三核羧酸配合物〔Ｍ２Ｍ＇Ｏ（Ｏ２ＣＲ）６Ｐｙ３ 〕Ｘ （Ｍ, Ｍ＇ ＝ Ｃｒ, Ｆｅ,Ｍｎ; Ｒ＝ Ｈ, ＣＨ３, Ｃ２Ｈ５, Ｐｙ＝ 吡啶; Ｘ ＝ Ｏ２ＣＨ, Ｏ２ＣＥｔ, Ｃｌ, ＣｌＯ４）的快原子轰击质谱（ＦＡＢ－ＭＳ）研究, 观察到异三核的２ 类重组反应： 第１ 类生成含有〔Ｍ３〕和〔Ｍ２Ｍ＇〕两种碎片离子, 第２ 类则生成含有〔Ｍ３〕, 〔Ｍ２Ｍ＇〕, 〔ＭＭ＇２〕和〔Ｍ＇３〕等４ 种不同组合的碎片离子。文中初步探讨了进行２ 类重组反应的原因和规律。根据所提出的规律确定了金属离子反应速率的顺序为Ｃｒ ＞ Ｆｅ ＞ Ｍｎ。     

牛磺酸合铜螯合物的合成及晶体结构

The new chelate complex formulated [Cu(NC₂H₆SO₃)(phen)(CH₃CO₂)]·2H₂O (phen is o-phenanthroline) has been synthesized and the crystal structure was determined by X-ray diffraction. The crystal structure of the complex belongs to triclinic system with space group and unite cell parameters： a=7.298(1)?， b=11.573(2)?， c=11.942(3)?;α=69.77(1)°， β=80.05(1)°， γ=76.39(1)°， V=915.2(3)?³， Z=2， F(000)=478. D_c=1.680g·cm^-3， μ=1.354mm^-1， S=1.045. In the crystal structure Cu(Ⅱ) ion is five-coordinated to form a distorted tragonal cone. CCDC： 193112.     

Donor/acceptor organotriiron(II) hydrazone chromophores: structural, spectroscopic and electrochemical properties

Two new trinuclear organoiron(II) complexes, in which a trans-1,2-ferrocenyl-ferrocenylene ethene unit (electron-donors) is attached to an electron-deficient cationic mixed sandwich via a conjugated hydrazone bridge, giving complexes of the type , have been prepared. The complexes were fully characterised by ¹H NMR, IR, UV-Vis spectroscopy. Their electrochemical properties have been studied by means of cyclic voltammetry, showing an effective electronic coupling between the two ferrocenyl fragments. The X-ray crystal structure of compound shows that it adopts the sterically more hindered syn-conformation about the 1,1′-ferrocenediyl core, with a parallel disposition of the conjugated dinucleating ligands, therefore, favouring an efficient electron delocalization through the entire π-framework. At the same time, the (C₅-ring)Fe moieties adopt an anti,anti-conformation with the iron atoms on the opposite faces of their respective bridging ligand.     

Syntheses and structures of overcrowded silanedichalcogenols and their applications to the syntheses of silanedichalcogenolato complexes

Overcrowded silanedichalcogenols Tbt(Mes)Si(EH)(E′H), such as silanedithiol (E = E′ = S), hydroxysilanethiol (E = O, E′ = S) and hydroxysilaneselenol (E = O, E′ = Se), bearing an efficient combination of steric protection groups, Tbt and Mes (Tbt = 2,4,6-tris[bis(trimethylsilyl)methyl]phenyl, Mes = 2,4,6-trimethylphenyl), were synthesized and isolated as air- and moisture-stable crystals, and their structures were fully characterized by spectroscopic and elemental analyses together with X-ray crystallographic analyses. The results of IR spectroscopy and the X-ray structural analyses suggested that these compounds exist as monomers without any intra- and intermolecular interactions such as hydrogen bonds even in the solid state and in solution. Novel four-membered-ring compounds, such as Tbt(Mes)Si(μ-S)₂PnBbt and [Tbt(Mes)Si(μ-E)(μ-E′)ML_n] [E, E′ = O, S, Se; Pn = Sb, Bi; Bbt = 2,6-bis[bis(trimethylsilyl)methyl]-4-[tris(trimethylsilyl)methyl]phenyl; ML_n = Pd(PPh₃)₂, Pt(PPh₃)₂, Ru(η⁶-benzene)] were synthesized by utilizing the silanedichalcogenols as key building blocks. The molecular structures of these newly isolated compounds were determined by NMR spectroscopic data together with X-ray crystallographic analyses.     

Mononuclear and Dinuclear Cobalt Complexes and its Dioxygen Adduct with a New 24-membered Hexaaza Macrocyclic Ligand

Abstract

Dinucleating 24-membered hexaazadiphenol macrocyclic ligand 3,6,9,17,20,23-hexaaza-29,30-dihydroxy-13,27-dimethyl-tricyclo[23,3,1,1^11,15] triaconta-1(29), 11,13,15(30),25,27-hexaene (L or BDBPH), is prepared by the NaBH₄ reduction of the Schiff base obtained from [2+2] template condensation of 2,6-diformyl-p-cresol with diethylenetriamine. The ligand maintains dinuclear integrity for cobalt (II) while facilitating the formation of bridging phenolate dicobalt cores. Potentiometric equilibrium studies indicate that a variety of protonated, mononuclear and dinuclear cobalt (II) complexes form from p[H] 2 through 11 in aqueous solution. The protonation constants of this ligand and stability constants of the 1:1, 1:2 ligand: cobalt(II) complexes were determined in KCl supporting electrolyte (μ = 0.100 M) at 25°C. The mechanism for the formation of dinuclear dioxygen cobalt(II) complexes is also described. The stability constants of mononuclear and dinuclear cobalt complexes were determined under nitrogen. Preliminary results show that the dinuclear dioxygen cobalt (II) complexes do not catalyze hydroxylation of adamantane in the presence of H₂S as two-electron reductant.     

Synthesis and Characterization of Transition Metal (Cu,Co, Fe) Complexes of 6-Methyl-5-arylhydrazono-2-thio-4-oxo-pyrimidine Ligand

The article deals with a study to synthesize transition metal complexes of copper, cobalt, and iron with the ligand 6-methyl-5-arylhydrazono-2-thio-4-oxo-pyrimidine (MATOPyr). The synthesized ligand and all metal complexes were characterized by elemental analysis, XRD, SEM, FTIR, ¹HNMR, UV-VIS, magnetic spectral studies, and Mössbauer measurements. The morphology of the ligand along with the complexes of all three metals was also deduced.