首页> 外文期刊>Journal of Organometallic Chemistry >The molecular structure of [In(P3C2Bu2t)] using gas-phase electron diffraction and ab initio and DFT calculations
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The molecular structure of [In(P3C2Bu2t)] using gas-phase electron diffraction and ab initio and DFT calculations

机译:[In(P3C2Bu2t)]的分子结构,通过气相电子衍射和从头算和DFT计算得出

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摘要

The molecular structure of [ln(P3C2Bu2')] has been determined by gas-phase electron diffraction using the SARACEN method. The experimental geometric parameters showed good correlation with those obtained from quantum chemical calculations and from a previous X-ray diffraction study. Calculations were performed using various DIFT methods and also MP2 theory to identify the most suitable method for calculating structures of this type. The accuracy of the calculations was gauged by reference to experimentally determined parameters. The use of small-core and large-core pseudopotentials on the indium atom was also tested, showing that the lack of electrons explicitly considered in the calculation when a large-core pseudopotential was used affected the accuracy of the calculation. Similar calculations have been performed for the less symmetrical [In(P2C3Bu3')], but electron diffraction data of adequate quality could not be obtained. (c) 2006 Elsevier B.V. All rights reserved.
机译:[ln(P3C2Bu2')]的分子结构已通过使用SARACEN方法的气相电子衍射确定。实验几何参数与从量子化学计算和先前的X射线衍射研究获得的参数具有良好的相关性。使用各种DIFT方法以及MP2理论进行了计算,以找出最合适的方法来计算这种类型的结构。通过参考实验确定的参数来评估计算的准确性。还测试了在铟原子上使用小核和大核假电位,表明当使用大核假电位时,在计算中明确考虑缺少电子会影响计算的准确性。对于不太对称的[In(P2C3Bu3')],已经进行了类似的计算,但是无法获得足够质量的电子衍射数据。 (c)2006 Elsevier B.V.保留所有权利。

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