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键振动频率是重要的基础数据,它的大小反映出化学键的强弱和分子的稳定性。由于测定的实验值总是为数有限的,建立直观而简单的准确估算方法具有重要的理论意义和实用意义。前人从不同的角度提出了许多计算氢化物分子Y_nA—H中A—H键振动频率v_(A-H)的计算公式,例如我国袁汉杰等人曾建议用原子价电子数n与共价半径r_A的比值作为标
The key vibration frequency is an important basic data, its size reflects the strength of chemical bonds and molecular stability. Since the experimental values measured are always limited, it is of great theoretical and practical significance to establish an intuitive and simple accurate estimation method. Former scholars such as Yuan Han-jie et al. Proposed using the ratio of valence electron number n to covalent radii r_A As a standard