Cody J Perry1, Sebastian A Ramos1, Maria C Phelps1

  • 1Department of Chemistry, University of California Riverside, Riverside, California 92521, United States.

概括

密度函数理论 (DFT) 模型无法预测分体晶体多态的能量,影响药物配方的开发. 一种新的混合DFT方法与合集群理论纠正相结合,提高了准确性,揭示了现有的梅本达晶体结构分析中的错误.

相关概念视频

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VSEPR Theory for Determination of Electron Pair Geometries
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Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
Removing one hydrogen from the intervening CH2 group...
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Crystal Field Theory - Tetrahedral and Square Planar Complexes

Tetrahedral Complexes
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Isomerism in Complexes
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