在磁场作用下,分子中的质子会产生自旋,邻近质子之间也会产生相互影响从而影响对方的核磁共振吸收,这种相互作用称为自旋偶合,自旋偶合的度量称为自旋的偶合常数(coupling constant)。
...观测两者之间的交互作用,当电子提供者与接受者之间的距离较近时,可以发现到两者的偶合是非常大的,其偶合常数(coupling constant)远超过室温下的波兹曼分部热能(kbt ~ 200 cm-1 at 298 k),当提供者与接受者距离较远时,其偶合常数会随着距离的增加而剧烈的减少,...
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异核偶合常数 JCH ; heteronuclear coupling constants
四极偶合常数 quadrupole coupling constant
剩余偶合常数 [分化] Residual coupling constant
非谐性偶合常数 [物化] anharmonic coupling constant
各向异性偶合常数 anisotropic coupling constant
偶合常数的测量 Measurement of J coupling
各向异性精细偶合常数 anisotropic hypofine coupling constant
nmr偶合常数 nmr coupling constant
自旋偶合常数 spin-spin coupling constant
本文还对计算结果及影响偶合常数的因素作了相应的讨论。
Some discussions of the calculated results and the factors which affect the coupling constants are also reported.
测取了分子中各磁性核之间的偶合常数,并依靠这些数据解释了有关谱峰的形状特点;
The coupling constants between mag- netical nuclei were measured, by which the related peaks' shape was explained.
建立了偶极矩、核四极矩偶合常数中的场梯度及晶体非线性光学系数的近似理论表达式。
Approximate theoretical expressions are given for dipole moment, field gradient at the nucleus, and nonlinear susceptibility of crystals.
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