The resonance integral is often called an exchangeintegral.
共振积分常常叫做交换积分。
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The results show that the effective exchangeintegral values are less than zero under different conformations, so the radicals display the anti-ferromagnetic coupling.
结果表明，不同构象下各体系有效交换积分值都小于零，自由基间表现为反铁磁性耦合。
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