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Theoretical analysis of cooperative effects of small molecule activation by frustrated Lewis pairs

机译:沮丧的路易斯对激活小分子的协同效应的理论分析

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The energy profiles of the activation reaction of small molecules (H _2, Br _2 and CO _2) with boron/phosphorus frustrated Lewis pairs (FLPs) have been calculated with dispersion corrected DFT (TPSS-D3). We have investigated the cooperative nature of the reactions by analyzing interaction energies in the ternary system and for reactant pairs. The non-additive contributions to the total interaction energy add to the driving force of the activation reaction, even at early stages of the process. We propose the isosurface representation of the many-body deformation density Δρ _(mb) as a qualitative tool to visualize cooperative, non-additive effects in complex chemical systems.
机译:利用分散校正DFT(TPSS-D3)计算了小分子(H _2,Br _2和CO _2)与受硼/磷抑制的路易斯对(FLP)的活化反应的能级。我们通过分析三元系统中和反应物对之间的相互作用能,研究了反应的协作性质。即使在该过程的早期,对总相互作用能的非加性贡献也会增加活化反应的驱动力。我们提出多体变形密度Δρ_(mb)的等值面表示作为定性工具,以可视化复杂化学系统中的协同,非加性效应。

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