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在四氢呋喃中合成了Schiff碱配体N,N'-二(2-羟基苄烯)-2-羟基苯甲基二胺(SB)与二阶过渡金属镍、铜、锌的三核或双核配合物;用钠汞齐还原SB得到了其氢化物N,N'-二(2-羟基苄基)-2-羟基苯甲基二胺(HSB),并在乙醇中合成了经与铜的双核配合物。对这些配合物进行了元素分析和热分析,并测定了电导、红外光谱和紫外光谱,确定了分子式,讨论了可能的配位结构。  相似文献   

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文欣  章丽娟 《结构化学》1996,15(3):249-252
合成了螺(异苯并呋喃-1(3H),9’-(9H)-2’-N,N-二苄胺基-6’-二乙胺基占吨)-酮-3,C38H34N2O5,单斜晶系,空间群Cc,晶体学参数为a=16.826(4),b=10.648(4),c=17.618(7)A,β=92.25(2)°,V=3154(2),A^3,Z=4,Mr=566.7,Dx=1.19g/cm^3,F(000)=1200。结构由直接法解出,偏离因子R=0.0  相似文献   

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1 INTRODUCTION The chemistry of lanthanide (Ⅲ) complexes has a considerable history. The stereochemistry of the lanthanide (Ⅲ) complexes with ethyleneamine- N, N, N, N-tetraacetate (Edta) has been investigated[1~10]. Up to now, many Ln-Edta complexes with the chemical formulae of M[Ln(Edta)(H2O)m]nH2O (M = Na+, K+, Cs+, NH4+, Guanium; m = 2, 3; n = 0, 1, 3, 5) have been reported and suggested that the coordination modes and crystal systems for the Ln-Edta complexes depend on …  相似文献   

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N,N,N‘,N’—四己基丙二酰胺从硝酸介质中萃取铀(Ⅵ)   总被引:2,自引:1,他引:2  
孙国新  鲍猛 《应用化学》1998,15(4):29-32
以甲苯为稀释剂研究了N,N,N',N'-四己基两二酰胺从硝酸介质中萃取硝酸和铀(Ⅵ)的性能.考察了水相硝酸浓度、李取剂浓度、硝酸钠浓度以及温度对萃取分配比的影响,确定了萃合物的组成.借助红外光谱分析了萃合物的结构.求得了萃取硝酸和硝酸铀酰的平衡常数及反应的热力学焓变.与N,N,N',N'-四丁基丙二酰胺萃取铀的性能比较,发现烷基链长的增加减少了三相生成的倾向,但酰胺的萃取能力却下降.  相似文献   

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IntroductionThe design and the synthesis of new chiral ox-azoline[1,2 ] and C2 symmetric bis( oxazoline) ligandsand the application of their metal complexes inasymmetric catalytic reactions have inspired manyscientists to great exertions in recent years[3— 8] .Our interest has been focussed on the studies ofenantioselective transition metal catalysis ofhetero-cyclic ligands[9— 11] . In the synthesis of our new de-signed ligands,what is crucial is to select a rigidcyclic backbone. Bis( oxazo…  相似文献   

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首次报道了一个新的拟酶模型物-双[N,N'-1,2-亚乙基-2,2'-(苯基亚甲基)二(3,4-二甲基吡咯-5-醋缩亚胺)]合双锰的合成方法及光谱特征;并对用PhIO单加氧化环己烷反应的催化性能及自氧化反应进行了研究。结果表明,此Schiff碱双锰配合物的催化性能及稳定性与金属卟啉TPPMnCl相似。  相似文献   

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HePingZeng 《中国化学快报》2002,13(12):1231-1234
Photoinduced electron transfer processes between fullerenes(C60/C70)and N,N,N’,N’-tetra-(p-methylphenyl-4,4’-diamino-1,1’-diphenyl ether(TPDAE)have been studied by nanosecond laser flash photolysis.Quantum yields and rate constants of electron trasfer from TPDAE to excited triplet state of fullerenes(C60/C70)in benzonitrile have been evaluated by observing the trasient absorption bands in the near-IR region where the excited triplet state.radical anion of fullerenes(C60/C70)and radical cations of TPDAE appear.  相似文献   

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崔斌  唐宗薰 《应用化学》1998,15(3):82-84
Sm(ClO4)3与N,N┐二安替比林┐1,6┐己二酰胺(BAPHDCA)配合行为的相平衡崔斌*唐宗薰张逢星郭志箴(西北大学化学系西安710069)关键词二安替比林-己二酰胺,高氯酸钐,相平衡,三元体系1997-08-06收稿,1998-01-05...  相似文献   

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于鹏  景晓燕 《分析化学》1999,27(11):1337-1340
用^1H NMR和^13C NMR谱研究了新型电化学发光探针六氟磷酸二(4,4’;-二甲基-2,2‘-联吡啶).(4.4’-二羧酸-2,2‘-联吡啶)合钌的立体结构,通过^1H ^1H COSY,^13C-^1H HETCOR谱对其氢谱和碳谱中的各谱峰进行了归属,并给出了氢谱和碳谱峰的化学位移值。  相似文献   

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N,N,N‘,N’—四异丁基—3—氧—戊二酰胺萃取铀钍的研究   总被引:3,自引:0,他引:3  
放射性废液中含有大量的钢系和铜系元素,众多学者作了大量研究工作。如焦荣洲等[’]用三烷基氧磷(TRPO)、赵沪根等[’]用DHDECMP从放射性废液中分离啊系和湖系元素进行了系统研究。但所用革取剂均为含磷化合物,使用后被放射性污染的革取剂最终处置困难。为此面临寻求革取效率高、价廉,又便于最终处置的新型革取剂的任务。文章pl合成了二酚胺类化合物(R‘RZNCO)。R3系列车取剂,它能有效地从放射性废液中革取分离回收钢系与调系元素。本文探讨了其中的N,N,M,NW四异了基一3一氧一戊二酚胺(简写为L…  相似文献   

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研究了新型感光稳定剂N,N’-二(芳磺酰)亚磺酰胺-S-(2-苯并咪唑)钠(芳磺酰基为苯磺酰,对甲苯磺酰,对氯苯磺酰)与增感染料在实用照相乳剂虽的超增感与防雾作用。  相似文献   

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曾和平 《中国化学》2002,20(10):1025-1030
In search of new systems with a photoexcited redox pair which exhibits a strong and stable photoinduced absorption band to understand the photophyscial and photochemical properties of electron transfer between fullernes (C60/C70) and organic donor[N,N,N’,N’-tetra(p-methylphenyl)-4,4’-diamino-1,1’-diphenyl sulphide(TPDAS)],we studied characteristic absorption spectra in the near-IR region obtained from 532nm nanosecond laser flash photolysis of a mixture of the fullerenes (C60/C70) and TPDAS in polar solvents.When fullerenes (C60/C70)were photoexcithed,the rise of the radical anion of fullerenes (C60/C70)with the rapid decay of their excited triplet states were observed in benzonitrile.It can be deduced that the electron transfer reaction does take place from TPDAS to excithed triplet state of rullerens(C60/C70).The rate consants(ket)and quantum yiekls(φet) of this process have been also evaluated.  相似文献   

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王长凤  张素华 《应用化学》1998,15(3):112-113
N,N┐二水杨叉基┐1,2┐二┐(4┐甲氧基苯基)乙二胺配合物的合成及生物活性王长凤*杨光明宋世栋(南开大学高分子化学研究所,吸附分离功能高分子材料国家重点实验室天津300071)张素华李树正(南开大学元素有机化学研究所天津)关键词乙二胺Schif...  相似文献   

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