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Updated: May 20, 2025

A Toolkit to Enable Hydrocarbon Conversion in Aqueous Environments
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A Toolkit to Enable Hydrocarbon Conversion in Aqueous Environments

Published on: October 2, 2012

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针对线性基的有针对性的可转移机器学习潜力,在C14H30上训练并测试C4H10到C30H62

Chen Qu1, Paul L Houston2,3, Thomas Allison4

  • 1Independent Researcher, Toronto, Ontario M9B0E3, Canada.

Journal of chemical theory and computation
|March 27, 2025
PubMed
概括

一个新的机器学习潜力准确地模拟了从butan到C30H62.2的线性基. 这种可转移的潜力显示了计算化学前所未有的准确性,使得碳化合物的高效模拟成为可能.

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Physical Properties of Alkanes02:33

Physical Properties of Alkanes

Alkanes are nonpolar molecules due to the presence of only carbon and hydrogen atoms. The electronegativity difference between carbon and hydrogen is minimal, and hence alkanes have a zero dipole moment. This leads to the presence of only dispersion forces between the molecules. The strength of dispersion forces is dependent on the surface area of the molecules on which they act. Since the surface area increases with the molecular length for straight-chain alkanes, the dispersion forces also...
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Structure of Alkanes02:23

Structure of Alkanes

The formation of carbon-carbon bonds leading to the creation of the carbon chain is the basis of organic chemistry. August Kekulé and Archibald Scott Couper independently developed this idea of carbon chain formation.
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Mass Spectrometry: Branched Alkane Fragmentation

This lesson delves into the mass spectrometry of branched alkane fragmentation. Branched alkanes possess secondary or tertiary carbon atoms, which generate relatively stable carbocations if the cleavage occurs at the branching point. The high stability of carbocations drives the instant fragmentation of branched alkanes. Accordingly, the branched alkane's molecular ion peak is very weak or invisible in the mass spectra, especially in comparison to a linear alkane.
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Constitutional Isomers of Alkanes

Organic compounds of the same molecular formula can have different structural formulas called constitutional isomers, and the phenomenon is known as constitutional isomerism. Alkanes with four or more carbons showing multiple structures with the same molecular formula thereby exhibit constitutional isomerism.
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