Spectroscopic and reactivity differences in metal complexes derived from sulfur containing Triphos homologs.

Spectroscopic and reactivity differences in metal complexes derived from sulfur containing Triphos homologs.
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含硫 Triphos 同系物衍生的金属络合物的光谱和反应性差异

DOI:
10.1039/c7dt01459g
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发表时间:
2017
影响因子:
4
通讯作者:
U.-P. Apfel
U.-P. Apfel
中科院分区:
化学2区
文献类型:
--
作者:
A. Petuker;P. Gerschel;S. Piontek;N. Ritterskamp;F. Wittkamp;L. Iffland;R. Miller;U.-P. Apfel

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在此,我们报道了一种简化的合成三磷同系物H3CC(CH 2X)n(CH 2 Y)3−n(X = SPh,Y = PPh 2,n = 0-3)的方法。在相同的实验条件下,测试了多齿化合物与金属如Ni、Fe和Mo配位的潜力。采用循环伏安法、光谱电化学红外光谱法和密度泛函理论计算研究了一系列[{H3CC(CH 2X)n(CH 2 Y)3−n}Mo(CO)3]配合物的电子结构变化,并评价了它们在氧化或不同溶剂存在下打开配位点或释放CO的潜力.此外,我们证明了N,N-二甲基苯甲酰胺的催化硅氢加成反应的N,N-二甲基苄胺的影响所施加的三脚架配体。我们的调查表明,这种操作的高潜力,选择性地改变的动力学的结合性能的Trixos金属配合物和它们的反应性。
Herein, we report a simplified method for the synthesis of Triphos homologs H3CC(CH2X)n(CH2Y)3−n (X = SPh, Y = PPh2, n = 0–3). The multidentate compounds were tested for their potential to coordinate metals such as Ni, Fe, and Mo under the same experimental conditions. Cyclic voltammetry, spectroelectrochemical IR investigations as well as DFT calculations were used to examine the electronic alterations in a series of [{H3CC(CH2X)n(CH2Y)3−n}Mo(CO)3] complexes and to evaluate their potential to open coordination sites or to release CO upon oxidation or in the presence of different solvents. In addition, we demonstrate that the catalytic hydrosilylation of N,N-dimethylbenzamide to N,N-dimethylbenzylamine is influenced by the applied tripodal ligand. Our investigations show the high potential of such manipulations to selectively alter the dynamics of the binding properties of Triphos-metal complexes and their reactivity.
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