Stereochemical dependence of 1H, 13C chemical shifts in unequal dialkyl groups and 31P 13C spin-spin coupling constants were studied and discussed. 研究和讨论了不等价的二烷基~1H、~(13)C化学位移和磷碳偶合常数与立体化学的关系。
Studies on the nuclear spin-spin coupling constants by using ab initio natural hybrid orbitals NMR偶合常数的从头算级别自然杂化轨道研究
Theoretical Study on the Spin-spin Coupling Constant of Indirectly Bonded Atoms 二键连原子间核自旋偶合常数的理论研究
The Calculation of Nuclear Spin-Spin Coupling Constants ⅵ. The Additivity of the Proton Coupling Constants in Substituted Benzenes 核自旋偶合常数的计算Ⅵ.取代苯质子偶合常数的加和性
As a result of earlier interest in the calculation of the C-H nuclear spin-spin coupling constants and its correlation with the C-H stretching frequencies in hydrocarbons and heterosubstituted hydrocarbons, a novel general relationship for the calculation of the C-H stretching frequencies is proposed in this paper. 在计算CH核白旋-自旋偶合常数的新公式及其与CH伸缩频率之间的关系的基础上,得出了计算CH伸缩频率的新的一般关系式。
Calculation of Nuclear Spin-Spin Coupling Constants of C-F Bonds by A Nonlinear Model and Back Propagation ( BP) Neural Network Analysis 采用BP神经网络研究C-F键核自旋偶合常数