Alarcón S H, Olivieri A C, Harris R K
Departamento de Química Analítica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Argentina.
Solid State Nucl Magn Reson. 1993 Dec;2(6):325-34. doi: 10.1016/0926-2040(83)90004-8.
The effect of the interaction between spin-3/2 and spin-1/2 nuclei on solid-state magic-angle spinning nuclear magnetic resonance (MAS NMR) spectra of the latter is studied in cases where deviations from first-order theory are expected. A comparison is made between the exact and first-order perturbation approaches. Both dipolar and indirect (iso- and anisotropic) coupling interactions are considered. Implications regarding 13C,35,37Cl, 31P,63,65Cu and 119Sn,35,37Cl cases are discussed. It is shown that in the latter two cases the sign of the indirect coupling constant J can be derived.
在预期偏离一阶理论的情况下，研究了自旋3/2与自旋1/2原子核之间的相互作用对后者的固态魔角旋转核磁共振（MAS NMR）谱的影响。对精确微扰方法和一阶微扰方法进行了比较。考虑了偶极耦合和间接（各向同性和各向异性）耦合相互作用。讨论了有关13C、35Cl、37Cl、31P、63Cu、65Cu以及119Sn、35Cl、37Cl情况的影响。结果表明，在后两种情况下，可以推导出间接耦合常数J的符号。
