Diamagnetic corrections and Pascal's constants
Diamagnetic corrections and Pascal's constants
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DOI：
10.1021/ed085p532
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发表时间：
2008-04-01
影响因子：
3
通讯作者：
Berry, John F.
中科院分区：
文献类型：
--
作者：
Bain, Gordon A.;Berry, John F.
测量的顺磁性物质的磁化率通常必须针对其潜在的抗磁性进行校正。这种校正通常是通过使用原子、离子或整个分子的抗磁性的列表值来完成的。这些列表值可能会有问题，因为许多来源包含不完整和相互冲突的数据。本文解释了抗磁校正因子的来源，整理了由多种来源编制的常数表，提出了一种估算任何给定化合物的抗磁校正的正确数量级的简单方法，清楚地解释了如何使用表中的常数来计算抗磁化率，并给出了醋酸铜磁化率的工作实例。
Measured magnetic susceptibilities of paramagnetic substances must typically be corrected for their underlying diamagnetism. This correction is often accomplished by using tabulated values for the diamagnetism of atoms, ions, or whole molecules. These tabulated values can be problematic since many sources contain incomplete and conflicting data. This article presents an explanation for the origin of the diamagnetic correction factors, organized tables of constants compiled from many sources, a simple method for estimating the correct order of magnitude for the diamagnetic correction for any given compound, a clear explanation of how to use the tabulated constants to calculate the diamagnetic susceptibility, and a worked example for the magnetic susceptibility of copper acetate.