英语翻译ConclusionIn this first chapter of the coordination chem
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英语翻译
Conclusion
In this first chapter of the coordination chemistry of the ditopic ligand DPSalH2,we have examined the electrochemical behaviour of the ruthenium and ruthenium/copper complexes.From spectroelectrochemical studies,we have shown that the coordinated ditopic ligand is the locus for the first oxidation and reduction processes.This is the case whether the coordinating N2O2 cavity is metal-free or metallated.DFT calculations were also consistent with these observations.
The fact that no drastic modification is observed in the redox potential of each constitutive component supports a weakly coupled system.Also,a remarkably long lived charge-separated state (>30 μs) is generated on excitation in the MLCT band for the [Ru(bpy)2(DPSalH2)]2+ complex.A phenoxyl radical was characterised after illumination of this complex in the presence of [CoIII(NH3)5Cl]2+.
Within the time resolution of our apparatus no electron transfer was observed for [Ru(bpy)2(DPSalCu)]2+.To elucidate this issue,faster photophysical studies (femtosecond time scale) will be necessary.With the aim of unravelling the electronic modification of the Ru(bpy)32+ lumophore by the copper ion,we are performing DFT calculations on both ruthenium-containing complexes.
Conclusion
In this first chapter of the coordination chemistry of the ditopic ligand DPSalH2,we have examined the electrochemical behaviour of the ruthenium and ruthenium/copper complexes.From spectroelectrochemical studies,we have shown that the coordinated ditopic ligand is the locus for the first oxidation and reduction processes.This is the case whether the coordinating N2O2 cavity is metal-free or metallated.DFT calculations were also consistent with these observations.
The fact that no drastic modification is observed in the redox potential of each constitutive component supports a weakly coupled system.Also,a remarkably long lived charge-separated state (>30 μs) is generated on excitation in the MLCT band for the [Ru(bpy)2(DPSalH2)]2+ complex.A phenoxyl radical was characterised after illumination of this complex in the presence of [CoIII(NH3)5Cl]2+.
Within the time resolution of our apparatus no electron transfer was observed for [Ru(bpy)2(DPSalCu)]2+.To elucidate this issue,faster photophysical studies (femtosecond time scale) will be necessary.With the aim of unravelling the electronic modification of the Ru(bpy)32+ lumophore by the copper ion,we are performing DFT calculations on both ruthenium-containing complexes.
结论
在这一章的dpsalh2 ditopic配体的配位化学,我们检测了钌、钌/铜配合物的电化学行为.从光谱电化学研究,我们已经表明,协调ditopic配体是第一氧化和还原过程的轨迹.这种情况是否协调N2O2腔也无金属或metallated.dft计算与这些观察结果一致.
事实上,没有很大的修改是各组成成分的氧化还原电位的观察支持弱耦合系统.同时,一个非常长的电荷分离态(>30μS)为[茹的MLCT带激励产生(bpy)2(dpsalh2)] 2 +复杂.苯氧自由基的特点是这一复杂的[COIII存在光照后2 +(NH3)5CL ]
在我们的设备没有电子转移的时间分辨率为[Ru(bpy)到2(dpsalcu)] 2 +.为了阐明这个问题,更快的光物理研究(飞秒时间尺度)将是必要的.随着解体的Ru(bpy)电子改性的目的32 + lumophore由铜离子,我们对含钌配合物进行理论计算.
在这一章的dpsalh2 ditopic配体的配位化学,我们检测了钌、钌/铜配合物的电化学行为.从光谱电化学研究,我们已经表明,协调ditopic配体是第一氧化和还原过程的轨迹.这种情况是否协调N2O2腔也无金属或metallated.dft计算与这些观察结果一致.
事实上,没有很大的修改是各组成成分的氧化还原电位的观察支持弱耦合系统.同时,一个非常长的电荷分离态(>30μS)为[茹的MLCT带激励产生(bpy)2(dpsalh2)] 2 +复杂.苯氧自由基的特点是这一复杂的[COIII存在光照后2 +(NH3)5CL ]
在我们的设备没有电子转移的时间分辨率为[Ru(bpy)到2(dpsalcu)] 2 +.为了阐明这个问题,更快的光物理研究(飞秒时间尺度)将是必要的.随着解体的Ru(bpy)电子改性的目的32 + lumophore由铜离子,我们对含钌配合物进行理论计算.
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