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电子转移过程     
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  electron transfer process
     Electron Transfer Process in BaFCI:Eu~(2+) during UV-lrradiation and Photostimulation
     紫外线辐照下BaFCl:Eu~(2+)的电子转移过程
短句来源
     1992 NOBEL PRIZE WINNER——PROFESSOR R·A·MARCUS AND THE THEORY OF ELECTRON TRANSFER PROCESS
     1992年诺贝尔化学奖获得者——R·A·Marcus及其电子转移过程的理论
短句来源
     The transient absorption peaks of MV + and PyTS + have been detected using nanosecond transient absorption method, it shows that the electron transfer process from PyTS to MV 2+ occurs when the PyTS/MV 2+ complex was excited.
     由瞬态吸收光谱可观察到MV+、PyTS+的瞬态吸收峰,这表明PyTS/MV2+复合物被光激发后,发生了由PyTS到MV2+的电子转移过程
短句来源
     A Study of Intramolecular Electron Transfer Process of Porphyrin-anthraquinone under Photoinduction(Ⅰ)──Fluorescence Method
     光诱导下卟啉蒽醌分子内电子转移过程的研究(Ⅰ)──荧光法
短句来源
     A Study of Intramolecular Electron Transfer Process of Porphyrin-anthraquinone Under Photoinduction(Ⅱ)─Paramagnetic Resonance Method
     光诱导下卟啉蒽醌化合物分子内电子转移过程的研究(Ⅱ)──顺磁共振法
短句来源
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  electron transfer processes
     Photoinduced Electron Transfer Processes between Triphenylamine and Fullerenes (C_(60)/C_(70))
     富勒烯(C_(60)/C_(70))与三苯基胺间的光诱导电子转移过程研究
短句来源
     Photoinduced electron transfer processes between fullerenes (C 60/C 70) and triphenylamine (TPA) have been studied by nanosecond laser flash photolysis.
     用激光光解方法研究了富勒烯 (C60 /C70 )与三苯基胺 (TPA)间的光诱导电子转移过程 .
短句来源
     Studies on the Inner sphere Reorganization Energies for AH 2/AH +(-) 2 Electron Self exchange Reactions in Electron transfer Processes from Ab Initio Calculation
     气相电子转移过程中AH2+AH+(-)2电子自交换反应内氛重组能的从头算研究
短句来源
     It points out that the variances of elec-tronic excited energy between the different X atoms at the same excited state in the Mo2X84- clusters depend mostly on the components of the participant molecular orbitals during electron transfer processes.
     此外,本文还提出了簇合物Mo_2X_8~(4-)的态相同而X不同时,电子跃迁能变化,主要决定于参与电子转移过程的分子轨道组成成份的看法。
短句来源
     INVESTIGATION OF ELECTRON TRANSFER PROCESSES ON LUTETIUM MONOPHTHALOCYANINE AND LUTETIUM DIPHTHALOCYANINE
     镥单酞菁和镥双酞菁电子转移过程的研究
短句来源
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  process of electron transfer
     The relationship and the change among them confirmed the breaking of bond, the formation of bond and the process of electron transfer.
     它们之间的关系和变化验证了键的断裂、键的生成及电子转移过程
短句来源
     From the results of the calculations, it is a multistep reaction including a transition state and two intermediate states. A positive charge of Br+ transfers to H by means of intermediate [C_6H_6Br]+. In fact, it is a process of electron transfer.
     计算结果表明,这是包括一个过渡态和两个中间态的多步反应,反应过程中Br+所带的正电荷经正离子中间体[C6H6Br]+转移给H,是电子转移过程.
短句来源
  “电子转移过程”译为未确定词的双语例句
     Laser Flash Photolysis Studied on Photoinduced Electron Transfer from N,N,N′,N′-Tetra-(p-methylphenyl)-4,4′-diamino-1,1′-diphenyl Selenide (TPDASe) to Fullerenes (C_(60)/C_(70))
     富勒烯(C_(60)/C_(70))与N,N,N′,N′-四-(对甲苯基)-4,4′-二胺1,1′-二苯硒醚(TPDASe)间光诱导电子转移过程的激光光解研究
短句来源
     The photoinduced electron-transfer between N,N,N′,N′-tetra-(p-methylphenyl)-4,4′-diamino-1,1′- diphenyl selenide (TPDASe) and fullerene (C 60/C 70) occurred in benzonitrile by nanosecond laser flash photolysis.
     富勒烯 (C60 /C70 )与N ,N ,N′ ,N′ 四 (对甲苯基 ) 4,4′ 二胺 1,1′ 二苯硒醚 (TPDASe)间在激光光诱导条件下 ,发生了分子间的电子转移过程 .
短句来源
     A intramolecular electron transfer,Trp/N ·\|Tyr→Trp\|Tyr/O ·,was observed in the process of photoionization of Trp\|Tyr by 248?
     在二肽Trp Tyr的光电离和光敏化体系中观察到自由基的转变过程 ,Trp/N· Tyr→Trp Tyr/O·即分子内的电子转移过程 ;
短句来源
     DFT/BLYP method is used to investigate theoretically the electron transfer (ET) reactions between M(Li,Na,Mg)-C6H6 and M+-C6H6 complexes in the gas phase.
     用密度泛函理论 (DFT/BLYP)在6 31G基组水平上研究了金属原子 苯与离子 苯配合物的气相电子转移过程 ,得到了M(Li,Na ,Mg) C6H6 和M+ C6H6 络合物以及它们之间电子转移过程中的先驱络合物的最优几何构型和电子结构.
短句来源
     2. Combined with SECM, the processes of ET in following two systems at NB/W interface were investigated by TLCV: (1) ascorbic acid (H_2A, in water)-ferrocene(Fc, in NB) system;
     2.结合SECM技术,应用TLCV方法研究了以下两个体系在硝基苯(NB)/水(W)界面上的电子转移过程:(1) 抗坏血酸(H_2A,水相)—二茂铁(Fc,有机相)体系;
短句来源
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  electron transfer process
Photoinduced intramolecular electron transfer process from C60 moiety to carbazole moiety has been studied by nanosecond laser flash photolysis.
      
The results indicate that there is a greater resistance during the electron transfer process in poly(o-ABA) film than in bare GCE for the redox of [Fe(CN)6]3-/[Fe(CN)6]4-.
      
The approach consists of comparing the results of a "direct" electrolysis of a model substance (process P1) with the results of its electrolysis performed in the mode of a homogeneous catalytic endoergic electron transfer (process P2).
      
A theory of electron tunneling through a single-center bridge redox group that has two electronic levels participating in the electron transfer process is presented.
      
97, lifetime quenching efficiency ?ET = 0, quenching efficiency of formation of non-emission complex ?c = 0.97); while the quenching by carbazole is mainly a dynamic electron transfer process (?Q = 0.
      
更多          
  electron transfer processes
It was shown that electron transfer processes monitored by the 1020-nm absorption band development as well as by bleaching of 760-nm absorption band have the enhanced 32 cm-1 mode in the Fourier transform spectra.
      
Enantioselective Effects in Electron Transfer Processes during the Luminescence Quenching of D- and L-Tryptophan by Europium(III
      
Possible reasons for different effects of CAL on the electron transfer processes are discussed.
      
Electron transfer processes in a series of pyrazole-2-in-5-ones ("pyrazolones-5") and some of their thioanalogues are studied experimentally and theoretically for the first time.
      
Reaction mechanisms involving heterolytic, homolytic, enzymatic, and single-electron transfer processes, as well as [2+2]- and [3+3]-cycloadditions, are discussed.
      
更多          
  intermolecular charge transfer
Holographic Recording Media Based on Systems with Intramolecular and Intermolecular Charge Transfer
      
Weak intermolecular charge transfer in the ground state of a π-conjugated polymer chain
      
We show that a π-conjugated polymer chain can demonstrate weak intermolecular charge transfer in the electronic ground state.
      
The factors influencing weak intermolecular charge transfer in π-conjugated chains are discussed.
      
Possible mechanisms of intermolecular charge transfer and electron transfer processes in the excited electronic state
      
更多          
  process of electron transfer
As a result, the electrons photomobilized in RC cooled under illumination are unable to return backward the process of electron transfer to P700+ after cessation of actinic illumination.
      
As a result, the electrons photomobilized in RC cooled under illumination are unable to return backward the process of electron transfer to P700+ after cessation of actinic illumination.
      
One of the most intriguing and important aspects of biological chemistry is how the deceptively simple process of electron transfer (ET) is utilized and organized by macromolecules that perform some of the most sophisticated chemistry known to man.
      
The results show that in the formation of FeS2(100) surface, there exists a process of electron transfer from Fe dangling bond to S dangling bond.
      
The electron structure of FeS2 surface (100) was computed by DFT (density function theory) and the process of electron transfer in sulfide flotation was simulated through ab-initio calculation.
      
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The electronic absorption and fluorescence emission spectra of covalently linked porphyrin-anthraquinone com pounds, i.e, 5-[P-(α-anthraquinonyl amide) methoxyphenyl]-10,15,20-tri-(P-methoxyphenyl) porphyrin P-AQ (α) and 5-[P-(βanthraquinonylamide) methoxyphenyl]-10,15,20-tri(P-methoxydhe-nyl)porphyrin P-AQ(β)in benzene and dimethylformamide have been examined. The results obtained indicate that the combination of the porphyrin and the anthraquinone via covalent chain creates a more favorable circumstance for...

The electronic absorption and fluorescence emission spectra of covalently linked porphyrin-anthraquinone com pounds, i.e, 5-[P-(α-anthraquinonyl amide) methoxyphenyl]-10,15,20-tri-(P-methoxyphenyl) porphyrin P-AQ (α) and 5-[P-(βanthraquinonylamide) methoxyphenyl]-10,15,20-tri(P-methoxydhe-nyl)porphyrin P-AQ(β)in benzene and dimethylformamide have been examined. The results obtained indicate that the combination of the porphyrin and the anthraquinone via covalent chain creates a more favorable circumstance for their interaction, of most interest,however,in this case is the fact that there appears a significant difference in fluorescence quenching for P-AQ(α)as compared with P-AQ(β).Based on this finding it has been suggested that the interaction of the subunit in the covalent chain with the anthraquinone linked by it seems to be capable of affecting the intramolecular electron transfer in the P-AQ compounds and this effect has to be taken into account in designing of model system for imitation of the primary photochemical events in photosynthesis

考察了卟啉—蒽醌化合物5-[对-(α-蒽酰亚胺)甲氧苯基]—10,15,20—三[对—甲氧苯基)卟啉P—AQ(α)和5—[对—(β—蒽醌酰亚胺)甲氧苯基]—10.15.20—三(对—甲氧苯基)卟啉P-AQ(β)在苯和二甲基甲酰胺中的电子吸收光谱和荧光发射光谱.所得结果表明:当用共价键分子链将卟啉和蒽醌连接在一起时,为它们之间的相互作用创造了更为有利的条件,但更有趣的实验发现是:P—AQ(α)和P—AQ(β)在极性溶液中的荧光猝灭特性有明显的不同.根据这一发现可以设想;连接卟啉和蒽醌基团的共价键分子链的亚单位和被它所连接的醌基的相互作用,可对卟啉和蒽醌之间的分子内电子转移过程产生一定的影响,因而设计光学作用过程中光化学过程的模型体系时,对此必须给予应有的考虑.

Reduction of bianthrone on electrode is an ECE process.Studies on this system are completed by a homogeneous redox catalysis with quinones as the catalyst.The results obtained are as follows,the formal standard potential of A/A~7 couple,E_(AA~7)~O=-1.166V vs.SCE,the electron transfer rate constant for A+e→A~7,k_(S,AA~7)~O=4.1×10~(-2)cm,sec~(-1),the conformation change rate constant k_(AB)_-= 1.8×10~6sec~(-1) and the solution electron transfer standard rate tonstant Logk_s~(sol)=7.04.we also show that the ECE...

Reduction of bianthrone on electrode is an ECE process.Studies on this system are completed by a homogeneous redox catalysis with quinones as the catalyst.The results obtained are as follows,the formal standard potential of A/A~7 couple,E_(AA~7)~O=-1.166V vs.SCE,the electron transfer rate constant for A+e→A~7,k_(S,AA~7)~O=4.1×10~(-2)cm,sec~(-1),the conformation change rate constant k_(AB)_-= 1.8×10~6sec~(-1) and the solution electron transfer standard rate tonstant Logk_s~(sol)=7.04.we also show that the ECE process for the reduction of bianchrone is controlled by the electron transfer reaction A+e→A~7,and that tbe DISP situation prevails in the homogeneous catalytical reaction.

双葱酮的电化学还原是一个ECE过程.本文通过均相氧化还原催化作用研究此体系,以醌类作催化剂.测定了在DMF溶剂中氧化还原对A/A~7的标准电位E_(AA~7)~O=-1.166伏(相对于饱和甘汞电极),电子转移的速度常数k_(S,AA~7)~O=4.1×10~(-2)厘米·秒~(-1),构型转变速度常数k_(AD)~-=1.8×10~6秒~(-1),确定了电子转移过程A+e→A~7是双葸酮还原反应的速度控制步骤.还测定了溶液电子交换反应的标准速度常数logk_s~(sol)=7.04,并确定了在均相催化反应中,歧化机理是主要的.

The two-state, two-center atomic expansion method considering eikonal-type distortion over the travelling atomic orbitals is proposed firstly for calculation of charge transfer cross section. In the limit of small capture probabilities The EPS method is reduced to the so-called modified eikonall approximation(MEA), in which the effect associated with nonorthogonal states as well as internuclear potentiall is taken into account in a consistent way, and further to conventional eikonal approximation by neglecting...

The two-state, two-center atomic expansion method considering eikonal-type distortion over the travelling atomic orbitals is proposed firstly for calculation of charge transfer cross section. In the limit of small capture probabilities The EPS method is reduced to the so-called modified eikonall approximation(MEA), in which the effect associated with nonorthogonal states as well as internuclear potentiall is taken into account in a consistent way, and further to conventional eikonal approximation by neglecting overlap integrals. The scattering amplitude for elec tron capture into arbitrary states of fast projectile from the ground state of hydrogenlike atom is derived by using MEA, and the differential cross sections for resonant capture of electrons from atomic hydrogen by protons is evaluated for impact energy 125 key. A better agreement between observed and calculated values is obtained.

本文提出计算电荷转移截面的一种近似方法—程函微扰态展开法。在小浮获几率范围内这种方法可进一步简化为修正的程函近似(MEA)。它包含过程始末态非正交性和核间势的校正。用MEA近似推导了电子由靶原子的基态转移到入射裸核任意态的散射振幅的公式,并对共振电子转移过程H~++H→H(θ))+H~+进行了数值计算,发现与相应的实验结果符合相当好,较从来的程函方法有不少改善。

 
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